{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T19:03:50Z","timestamp":1777403030999,"version":"3.51.4"},"reference-count":124,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2022,3,18]],"date-time":"2022-03-18T00:00:00Z","timestamp":1647561600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["LA\/P\/0037\/2020, UIDP\/50025\/2020 and UIDB\/50025\/2020"],"award-info":[{"award-number":["LA\/P\/0037\/2020, UIDP\/50025\/2020 and UIDB\/50025\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["PTDC\/EAM-AMB\/30989\/2017"],"award-info":[{"award-number":["PTDC\/EAM-AMB\/30989\/2017"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000780","name":"European Commission","doi-asserted-by":"publisher","award":["SYNERGY H2020-WIDESPREAD-2020-5, CSA, proposal n\u00b0 952169"],"award-info":[{"award-number":["SYNERGY H2020-WIDESPREAD-2020-5, CSA, proposal n\u00b0 952169"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000780","name":"European Commission","doi-asserted-by":"publisher","award":["No. 787410 (ERC-2018-AdG DIGISMART)"],"award-info":[{"award-number":["No. 787410 (ERC-2018-AdG DIGISMART)"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>In this study, polyethylene glycol-modified titanium dioxide (PEG-modified TiO2) nanopowders were prepared using a fast solvothermal method under microwave irradiation, and without any further calcination processes. These nanopowders were further impregnated on porous polymeric platforms by drop-casting. The effect of adding iron with different molar ratios (1, 2, and 5%) of iron precursor was investigated. The characterization of the produced materials was carried out by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. Optical characterization of all the materials was also carried out. SEM showed that pure TiO2 and Fe-TiO2 nanostructures presented similar nanosized and spherical particles, which uniformly covered the substrates. From XRD, pure TiO2 anatase was obtained for all nanopowders produced, which was further confirmed by Raman spectroscopy on the impregnated substrates. XPS and UV\u2013VIS absorption spectroscopy emission spectra revealed that the presence of Fe ions on the Fe-TiO2 nanostructures led to the introduction of new intermediate energy levels, as well as defects that contributed to an enhancement in the photocatalytic performance. The photocatalytic results under solar radiation demonstrated increased photocatalytic activity in the presence of the 5% Fe-TiO2 nanostructures (Rhodamine B degradation of 85% after 3.5 h, compared to 74% with pure TiO2 for the same exposure time). The photodegradation rate of RhB dye with the Fe-TiO2 substrate was 1.5-times faster than pure TiO2. Reusability tests were also performed. The approach developed in this work originated novel functionalized photocatalytic platforms, which were revealed to be promising for the removal of organic dyes from wastewater.<\/jats:p>","DOI":"10.3390\/nano12061005","type":"journal-article","created":{"date-parts":[[2022,3,20]],"date-time":"2022-03-20T21:34:27Z","timestamp":1647812067000},"page":"1005","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":40,"title":["Enhanced Fe-TiO2 Solar Photocatalysts on Porous Platforms for Water Purification"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9600-453X","authenticated-orcid":false,"given":"Maria Leonor","family":"Matias","sequence":"first","affiliation":[{"name":"CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP\/UNINOVA, 2829-516 Caparica, Portugal"}]},{"given":"Ana","family":"Pimentel","sequence":"additional","affiliation":[{"name":"CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP\/UNINOVA, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7432-8725","authenticated-orcid":false,"given":"Ana S.","family":"Reis-Machado","sequence":"additional","affiliation":[{"name":"LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0424-3248","authenticated-orcid":false,"given":"Joana","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"Physics Department & I3N, Aveiro University, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2764-3124","authenticated-orcid":false,"given":"Jonas","family":"Deuermeier","sequence":"additional","affiliation":[{"name":"CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP\/UNINOVA, 2829-516 Caparica, Portugal"}]},{"given":"Elvira","family":"Fortunato","sequence":"additional","affiliation":[{"name":"CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP\/UNINOVA, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1997-7669","authenticated-orcid":false,"given":"Rodrigo","family":"Martins","sequence":"additional","affiliation":[{"name":"CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP\/UNINOVA, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3115-6588","authenticated-orcid":false,"given":"Daniela","family":"Nunes","sequence":"additional","affiliation":[{"name":"CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP\/UNINOVA, 2829-516 Caparica, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,3,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"136643","DOI":"10.1016\/j.cplett.2019.136643","article-title":"A simple synthesis way to obtain iron-doped TiO2 nanoparticles as photocatalytic surfaces","volume":"732","author":"Pecchi","year":"2019","journal-title":"Chem. Phys. Lett."},{"key":"ref_2","first-page":"1","article-title":"Enhanced visible light photodegradation activity of RhB\/MB from aqueous solution using nanosized novel Fe-Cd co-modified ZnO","volume":"8","author":"Neena","year":"2018","journal-title":"Sci. Rep."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1016\/j.wsj.2016.04.001","article-title":"Removal of methylene blue and rhodamine B from water by zirconium oxide\/graphene","volume":"30","author":"Rani","year":"2016","journal-title":"Water Sci."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"706343","DOI":"10.3389\/fchem.2021.706343","article-title":"Carbon Dot\u2013Doped Titanium Dioxide Sheets for the Efficient Photocatalytic Performance of Refractory Pollutants","volume":"9","author":"Shen","year":"2021","journal-title":"Front. Chem."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"10895","DOI":"10.1021\/acsanm.0c02123","article-title":"Modulating Solar Energy Harvesting on TiO2 Nanochannel Membranes by Plasmonic Nanoparticle Assembly for Desalination of Contaminated Seawater","volume":"3","author":"Wu","year":"2020","journal-title":"ACS Appl. Nano Mater."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"533","DOI":"10.1039\/C8CY02438C","article-title":"Bridging the gap between laboratory and application in photocatalytic water purification","volume":"9","author":"Odling","year":"2019","journal-title":"Catal. Sci. Technol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"9919","DOI":"10.1021\/cr5001892","article-title":"Understanding TiO2 Photocatalysis: Mechanisms and Materials","volume":"114","author":"Schneider","year":"2014","journal-title":"Chem. Rev."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"527","DOI":"10.1016\/j.solener.2016.06.022","article-title":"Photocatalysis with solar energy: Sunlight-responsive photocatalyst based on TiO2 loaded on a natural material for wastewater treatment","volume":"135","author":"Borges","year":"2016","journal-title":"Sol. Energy"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1016\/j.jphotochemrev.2008.09.001","article-title":"Heterogeneous photocatalytic treatment of organic dyes in air and aqueous media","volume":"9","author":"Rajeshwar","year":"2008","journal-title":"J. Photochem. Photobiol. Photochem. Rev."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1038\/s41467-021-22839-0","article-title":"Photocatalytic air purification mimicking the self-cleaning process of the atmosphere","volume":"12","author":"He","year":"2021","journal-title":"Nat. Commun."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Fern\u00e1ndez-Catal\u00e1, J., Berenguer-Murcia, \u00c1., and Cazorla-Amor\u00f3s, D. (2018). Photocatalytic oxidation of VOCs in gas phase using capillary microreactors with commercial TiO2 (P25) fillings. Materials, 11.","DOI":"10.3390\/ma11071149"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Nunes, D., Pimentel, A., Branquinho, R., Fortunato, E., and Martins, R. (2021). Metal oxide-based photocatalytic paper: A green alternative for environmental remediation. Catalysts, 11.","DOI":"10.3390\/catal11040504"},{"key":"ref_13","first-page":"1591","article-title":"Enhanced UV Flexible Photodetectors and Photocatalysts Based on TiO2 Nanoplatforms","volume":"61","author":"Nunes","year":"2018","journal-title":"Springer Nat."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1016\/j.jphotochemrev.2012.06.001","article-title":"TiO2 photocatalysis: Design and applications","volume":"13","author":"Nakata","year":"2012","journal-title":"J. Photochem. Photobiol. Photochem. Rev."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1901088","DOI":"10.1002\/adem.201901088","article-title":"3D Printing of Powder-Based Inks into Functional Hierarchical Porous TiO2 Materials","volume":"22","author":"Xu","year":"2020","journal-title":"Adv. Eng. Mater."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1080\/17518253.2018.1440324","article-title":"Modification strategies of TiO2 for potential applications in photocatalysis: A critical review","volume":"11","author":"Humayun","year":"2018","journal-title":"Green Chem. Lett. Rev."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Dima, R.S., Phuthu, L., Maluta, N.E., Kirui, J.K., and Maphanga, R.R. (2021). Electronic, Structural, and Optical Properties of Mono-Doped and Co-Doped (210) TiO2 Brookite Surfaces for Application in Dye-Sensitized Solar Cells\u2014A First Principles Study. Materials, 14.","DOI":"10.3390\/ma14143918"},{"key":"ref_18","first-page":"1","article-title":"Photocatalytic degradation of organic pollutants using green oil palm frond-derived carbon quantum dots\/titanium dioxide as multifunctional photocatalysts under visible light radiation","volume":"12","author":"Heng","year":"2021","journal-title":"Chin. J. Chem. Eng."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Bono, N., Ponti, F., Punta, C., and Candiani, G. (2021). Effect of UV Irradiation and TiO2-Photocatalysis on Airborne Bacteria and Viruses: An Overview. Materials, 14.","DOI":"10.3390\/ma14051075"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1016\/j.arabjc.2017.02.002","article-title":"Photocatalytic activity of nitrogen and copper doped TiO2 nanoparticles prepared by microwave-assisted sol-gel process","volume":"13","author":"Reda","year":"2020","journal-title":"Arab. J. Chem."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1007\/s11244-005-3834-0","article-title":"Photocatalytic Degradation of Organic Pollutants Under Visible Light Irradiation","volume":"35","author":"Zhao","year":"2005","journal-title":"Top. Catal."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"20753","DOI":"10.1007\/s10854-020-04588-w","article-title":"Enhanced electrical and photocatalytic properties of porous TiO2 thin films decorated with Fe2O3 nanoparticles","volume":"31","author":"Landolsi","year":"2020","journal-title":"J. Mater. Sci. Mater. Electron."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"043001","DOI":"10.1088\/1361-6641\/ab011e","article-title":"Metal Oxide Nanostructures for Sensor Applications","volume":"34","author":"Nunes","year":"2019","journal-title":"Semicond. Sci. Technol"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"419","DOI":"10.1016\/j.ejpe.2014.09.010","article-title":"Effect of metal-doping of TiO2 nanoparticles on their photocatalytic activities toward removal of organic dyes","volume":"23","author":"Khairy","year":"2014","journal-title":"Egypt. J. Pet."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1193","DOI":"10.1039\/D0MA00171F","article-title":"Doped TiO2: The effect of doping elements on photocatalytic activity","volume":"1","author":"Khlyustova","year":"2020","journal-title":"Mater. Adv."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"2815","DOI":"10.1007\/s11164-015-2179-y","article-title":"Enhancement of visible-light photocatalytic activity of Cu-doped TiO2 nanoparticles","volume":"42","author":"Pongwan","year":"2016","journal-title":"Res. Chem. Intermed."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"2717","DOI":"10.1039\/B603456J","article-title":"An ordered cubic Im3m mesoporous Cr-TiO2 visible light photocatalyst","volume":"25","author":"Yu","year":"2006","journal-title":"Chem. Commun."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1100\/2012\/127326","article-title":"Preparation and characterization of Ni-doped TiO2 materials for photocurrent and photocatalytic applications","volume":"2012","author":"Ganesh","year":"2012","journal-title":"Sci. World J."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1652","DOI":"10.1016\/j.energy.2009.07.024","article-title":"Development of copper-doped TiO2 photocatalyst for hydrogen production under visible light","volume":"34","author":"Yoong","year":"2009","journal-title":"Energy"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"169","DOI":"10.18576\/ijtfst\/100306","article-title":"Efficient and Recyclable Cu Incorporated TiO2 Nanoparticle Catalyst for Organic Dye Photodegradation","volume":"10","author":"Ethiraj","year":"2021","journal-title":"Int. J. Thin Film Sci. Technol."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"20037","DOI":"10.1039\/c3cp53531b","article-title":"The doping mechanism of Cr into TiO2 and its influence on the photocatalytic performance","volume":"15","author":"Li","year":"2013","journal-title":"Phys. Chem. Chem. Phys."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"5021","DOI":"10.1039\/c3ce42356e","article-title":"Vanadium-doped TiO2 anatase nanostructures: The role of V in solid solution formation and its effect on the optical properties","volume":"16","author":"Avansi","year":"2014","journal-title":"CrystEngComm"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"7627","DOI":"10.1039\/D0RA09318A","article-title":"A facile synthesis of Zn-doped TiO2 nanoparticles with highly exposed (001) facets for enhanced photocatalytic performance","volume":"11","author":"Jiang","year":"2021","journal-title":"RSC Adv."},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Cao, W. (2016). Influences of Doping on Photocatalytic Properties of TiO2 Photocatalyst. Semiconductor Photocatalysis\u2014Materials, Mechanisms and Applications, IntechOpen.","DOI":"10.5772\/61384"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"015022","DOI":"10.1088\/2053-1591\/aa576d","article-title":"Photocatalytic performance of Fe-doped TiO2 nanoparticles under visible-light irradiation","volume":"4","author":"Ali","year":"2017","journal-title":"Mater. Res. Express"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1016\/j.colsurfa.2010.12.022","article-title":"Synthesis of Fe3+ doped TiO2 photocatalysts for the visible assisted degradation of an azo dye","volume":"375","author":"Sathishkumara","year":"2011","journal-title":"Colloids Surf. Physicochem. Eng. Asp."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s11671-015-1061-6","article-title":"Microwave-Assisted Synthesis of Carbon-Based (N, Fe)-Codoped TiO2 for the Photocatalytic Degradation of Formaldehyde","volume":"10","author":"Tian","year":"2015","journal-title":"Nanoscale Res. Lett."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"3088","DOI":"10.1016\/j.ceramint.2015.10.097","article-title":"The effects of Fe, Co and Ni dopants on TiO2 structure of sol\u2013gel nanopowders used as photocatalysts for environmental protection: A comparative study","volume":"42","author":"Ianculescu","year":"2016","journal-title":"Ceram. Int."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1573","DOI":"10.1016\/j.jhazmat.2009.08.029","article-title":"Transition metal ions effect on the properties and photocatalytic activity of nanocrystalline TiO2 prepared in an ionic liquid","volume":"172","author":"Ghasemi","year":"2009","journal-title":"J. Hazard. Mater."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"364","DOI":"10.4028\/www.scientific.net\/MSF.734.364","article-title":"Metal doped titanium dioxide: Synthesis and effect of metal ions on physico-chemical and photocatalytic properties","volume":"734","author":"Mogal","year":"2013","journal-title":"Mater. Sci. Forum"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"13669","DOI":"10.1021\/j100102a038","article-title":"The role of metal ion dopants in quantum-sized TiO2: Correlation between photoreactivity and charge carrier recombination dynamics","volume":"98","author":"Choi","year":"1994","journal-title":"J. Phys. Chem."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"10871","DOI":"10.1021\/jp982948+","article-title":"Role of Particle Size in Nanocrystalline TiO2-Based Photocatalysts","volume":"102","author":"Zhang","year":"1998","journal-title":"J. Phys. Chem."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"17956","DOI":"10.1007\/s10854-018-9911-5","article-title":"Systematic study of electronic properties of Fe-doped TiO2 nanoparticles by X-ray photoemission spectroscopy","volume":"29","author":"Nasralla","year":"2018","journal-title":"J. Mater. Sci. Mater. Electron."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"196","DOI":"10.1016\/j.jphotochem.2005.10.017","article-title":"Fe3+-TiO2 photocatalysts prepared by combining sol-gel method with hydrothermal treatment and their characterization","volume":"180","author":"Zhu","year":"2006","journal-title":"J. Photochem. Photobiol. Chem."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"5281","DOI":"10.1007\/s10854-016-6185-7","article-title":"Microwave synthesis of metal doped TiO2 for photocatalytic applications","volume":"28","author":"Maragatha","year":"2017","journal-title":"J. Mater. Sci. Mater. Electron."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"6501","DOI":"10.1007\/s10854-018-8632-0","article-title":"Microwave assisted synthesis and characterization of pure and Cr doped TiO2 with improved photo-efficiency","volume":"29","author":"Gnanavel","year":"2018","journal-title":"J. Mater. Sci. Mater. Electron."},{"key":"ref_47","doi-asserted-by":"crossref","unstructured":"Machut, C., Kania, N., L\u00e9ger, B., Wyrwalski, F., No\u00ebl, S., Addad, A., Monflier, E., and Ponchel, A. (2020). Fast Microwave Synthesis of Gold-Doped TiO2 Assisted by Modified Cyclodextrins for Photocatalytic Degradation of Dye and Hydrogen Production. Catalysts, 10.","DOI":"10.3390\/catal10070801"},{"key":"ref_48","doi-asserted-by":"crossref","unstructured":"De La Hoz, A., D\u00edaz-Ortiz, A., and Prieto, P. (2016). CHAPTER 1:Microwave-Assisted Green Organic Synthesis. Alternative Energy Sources for Green Chemistry, Royal Society of Chemistry.","DOI":"10.1039\/9781782623632-00001"},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Nunes, D., Pimentel, A., Santos, L., Barquinha, P., Fortunato, E., and Martins, R. (2017). Photocatalytic TiO2 Nanorod Spheres and Arrays Compatible with Flexible Applications. Catalysts, 7.","DOI":"10.3390\/catal7020060"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"262","DOI":"10.1016\/j.cattod.2015.10.038","article-title":"Photocatalytic behavior of TiO2 films synthesized by microwave irradiation","volume":"278","author":"Nunes","year":"2016","journal-title":"Catal. Today"},{"key":"ref_51","doi-asserted-by":"crossref","unstructured":"Pimentel, A., Nunes, D., Pereira, S., Martins, R., and Fortunato, E. (2016). Photocatalytic Activity of TiO2 Nanostructured Arrays Prepared by Microwave-Assisted Solvothermal Method. Semiconductor Photocatalysis\u2014Materials, Mechanisms and Applications, IntechOpen. Chapter 3.","DOI":"10.5772\/63237"},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"040002","DOI":"10.1088\/2632-959X\/abed40","article-title":"Enhanced solar photocatalysis of TiO2 nanoparticles and nanostructured thin films grown on paper","volume":"2","author":"Freire","year":"2021","journal-title":"Nano Express"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/j.cej.2018.11.132","article-title":"Photocatalytic properties of TiO2 and Fe-doped TiO2 prepared by metal organic framework-mediated synthesis","volume":"360","author":"Romero","year":"2019","journal-title":"Chem. Eng. J."},{"key":"ref_54","first-page":"1","article-title":"Effect of temperature, pressure and power in obtaining TiO2 and TiO2-Fe via microwaves and evaluation of photocatalytic activity with synthesis time","volume":"29","year":"2019","journal-title":"Acta Univ."},{"key":"ref_55","first-page":"153","article-title":"Microwave Synthesis of Cu, Fe-doped TiO2 and Its Application for Photocatalytic Degradation of Organic Wastewater","volume":"3","author":"Wu","year":"2014","journal-title":"Proc. 2015 Int. Conf. Mater. Sci. Appl."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"314","DOI":"10.1016\/j.ultsonch.2016.03.025","article-title":"Fabrication of Fe-doped TiO2 nanoparticles and investigation of photocatalytic decolorization of reactive red 198 under visible light irradiation","volume":"32","author":"Moradi","year":"2016","journal-title":"Ultrason. Sonochem."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"605","DOI":"10.1007\/s41742-020-00280-3","article-title":"Coprecipitation Synthesis of Fe-Doped TiO2 from Various Commercial TiO2 for Photocatalytic Reaction","volume":"14","author":"Ellouzi","year":"2020","journal-title":"Int. J. Environ. Res."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"3433","DOI":"10.1039\/C7RA11985B","article-title":"Porous TiO2 with large surface area is an efficient catalyst carrier for the recovery of wastewater containing an ultrahigh concentration of dye","volume":"8","author":"Zhou","year":"2018","journal-title":"RSC Adv."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"238","DOI":"10.1016\/j.apcata.2011.11.014","article-title":"Hydrothermal Synthesis and Photocatalytic Performance of Metal-Ions Doped TiO2","volume":"413","author":"Feng","year":"2012","journal-title":"Appl. Catal. A Gen."},{"key":"ref_60","first-page":"83366","article-title":"Molecular weight effects of PEG on the crystal structure and photocatalytic activities of PEG-capped TiO2 nanoparticles","volume":"6","author":"Zhang","year":"2016","journal-title":"RCS Adv."},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"754","DOI":"10.1016\/S1004-9541(07)60158-X","article-title":"Morphology Control of anatase TiO2 by surfactant-assisted Hydrothermal Method","volume":"15","author":"Fumin","year":"2007","journal-title":"Chin. J. Chem. Eng."},{"key":"ref_62","doi-asserted-by":"crossref","unstructured":"Kubiak, A., Bielan, Z., Bartkowiak, A., Gaba\u0142a, E., Piasecki, A., Zalas, M., Zieli\u0144ska-Jurek, A., Janczarek, M., Siwi\u0144ska-Ciesielczyk, K., and Jesionowski, T. (2020). Synthesis of titanium dioxide via surfactant-assisted microwave method for photocatalytic and dye-sensitized solar cells applications. Catalysts, 10.","DOI":"10.3390\/catal10050586"},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"1647","DOI":"10.1007\/s11814-016-0008-7","article-title":"Effects of surfactants on the preparation of TiO2 nanoparticles in microwave-assisted sol-gel process and their photocatalytic activity","volume":"33","author":"Jang","year":"2016","journal-title":"Korean J. Chem. Eng."},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"42","DOI":"10.1016\/j.ijleo.2017.05.048","article-title":"Synthesis and characterization of pure and Fe doped TiO2 thin films for antimicrobial activity","volume":"142","author":"Taha","year":"2017","journal-title":"Optik"},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"52","DOI":"10.1016\/j.matchemphys.2003.12.007","article-title":"Preparation and photo-catalytic activity of Fe-TiO2 thin films prepared by sol-gel dip coating","volume":"85","author":"Sonawane","year":"2004","journal-title":"Mater. Chem. Phys."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"10034","DOI":"10.1016\/j.apsusc.2012.06.069","article-title":"Preparation of Fe-doped TiO2 nanoparticles immobilized on polyamide fabric","volume":"258","author":"Zhang","year":"2012","journal-title":"Appl. Surf. Sci."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"138435","DOI":"10.1016\/j.tsf.2020.138435","article-title":"Local structural investigations of Fe-doped TiO2 amorphous thin films","volume":"716","author":"Yadav","year":"2020","journal-title":"Thin Solid Film."},{"key":"ref_68","doi-asserted-by":"crossref","unstructured":"Huertas, R.M., Fraga, M.C., Crespo, J.G., and Pereira, V.J. (2019). Solvent-Free Process for the Development of Photocatalytic Membranes. Molecules, 24.","DOI":"10.3390\/molecules24244481"},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"3847","DOI":"10.1016\/j.tsf.2011.10.054","article-title":"Real-time investigation on photocatalytic oxidation of gaseous methanol with nanocrystalline WO3\u2013TiO2 composite films","volume":"520","author":"Sadale","year":"2012","journal-title":"Thin Solid Film."},{"key":"ref_70","first-page":"1","article-title":"Altering the coffee ring effect by adding a surfactant like viscous polymer solution","volume":"7","author":"Seo","year":"2017","journal-title":"Sci. Rep."},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"126144","DOI":"10.1016\/j.colsurfa.2021.126144","article-title":"Suppression of the coffee-ring effect by tailoring the viscosity of pharmaceutical sessile drops","volume":"614","author":"Wilkinson","year":"2021","journal-title":"Colloids Surf. A Physicochem. Eng. Asp."},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"316","DOI":"10.1080\/14686996.2017.1314776","article-title":"Suppressing the coffee-ring effect of colloidal droplets by dispersed cellulose nanofibers","volume":"18","author":"Ooi","year":"2017","journal-title":"Sci. Technol. Adv. Mater."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/j.cis.2017.12.008","article-title":"A review on suppression and utilization of the coffee-ring effect","volume":"252","author":"Mampallil","year":"2018","journal-title":"Adv. Colloid Interface Sci."},{"key":"ref_74","unstructured":"Parsa, M. (2017). Wetting and Evaporation of Nanosuspension Droplets. [Ph.D. Thesis, Universit\u00e9 de Valenciennes et du Hainaut-Cambresis]."},{"key":"ref_75","unstructured":"Inagaki, M., and Kang, F. (2016). X-ray Powder Diffraction. Materials Science and Engineering of Carbon: Characterization, Butterworth-Heinemann."},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"S13","DOI":"10.1017\/S0885715614000840","article-title":"The HighScore suite","volume":"29","author":"Degen","year":"2014","journal-title":"Powder Diffr."},{"key":"ref_77","doi-asserted-by":"crossref","first-page":"2441","DOI":"10.1016\/j.apsusc.2007.09.063","article-title":"Analysis of XPS spectra of Fe2+ and Fe3+ ions in oxide materials","volume":"254","author":"Yamashita","year":"2008","journal-title":"Appl. Surf. Sci."},{"key":"ref_78","doi-asserted-by":"crossref","first-page":"030025","DOI":"10.1063\/1.4929241","article-title":"XRD analysis of undoped and Fe doped TiO2 nanoparticles by Williamson Hall method","volume":"1675","author":"Bharti","year":"2015","journal-title":"AIP Conf. Proc."},{"key":"ref_79","doi-asserted-by":"crossref","first-page":"015008","DOI":"10.1088\/2043-6254\/1\/1\/015008","article-title":"Synthesis and characterization of Fe-doped TiO2 photocatalyst by the sol\u2013gel method","volume":"1","author":"Luu","year":"2010","journal-title":"Adv. Nat. Sci. Nanosci. Nanotechnol."},{"key":"ref_80","doi-asserted-by":"crossref","unstructured":"Ahmad, M.M., Mushtaq, S., Al Qahtani, H.S., Sedky, A., and Alam, M.W. (2021). Investigation of TiO2 Nanoparticles Synthesized by Sol-Gel Method for Effectual Photodegradation, Oxidation and Reduction Reaction. Crystals, 11.","DOI":"10.3390\/cryst11121456"},{"key":"ref_81","first-page":"860","article-title":"Investigating Spectroscopic and Structural Properties of Cr doped TiO2 NPs Synthesized through Sol gel Deposition Technique","volume":"41","author":"Tesfaye","year":"2021","journal-title":"Tier\u00e4rztliche Prax."},{"key":"ref_82","doi-asserted-by":"crossref","first-page":"5089","DOI":"10.1007\/s10854-014-2276-5","article-title":"Influence of Fe catalytic doping on the properties of TiO2 nanoparticles synthesized by microwave method","volume":"25","author":"Vijayalakshmi","year":"2014","journal-title":"J. Mater. Sci. Mater. Electron."},{"key":"ref_83","doi-asserted-by":"crossref","first-page":"1800032","DOI":"10.1002\/aelm.201800032","article-title":"A Sustainable Approach to Flexible Electronics with Zinc-Tin Oxide Thin-Film Transistors","volume":"4","author":"Fernandes","year":"2018","journal-title":"Adv. Electron. Mater."},{"key":"ref_84","first-page":"294","article-title":"X-ray Photoelectron Spectroscopy Characterization of Fe Doped TiO2 Photocatalyst","volume":"1","author":"Abidov","year":"2013","journal-title":"Int. J. Mater. Mech. Manuf."},{"key":"ref_85","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1038\/srep32355","article-title":"Formation of oxygen vacancies and Ti3+ state in TiO2 thin film and enhanced optical properties by air plasma treatment","volume":"6","author":"Bharti","year":"2016","journal-title":"Sci. Rep."},{"key":"ref_86","doi-asserted-by":"crossref","first-page":"20084","DOI":"10.1039\/C7RA00134G","article-title":"Ligand-free rutile and anatase TiO2 nanocrystals as electron extraction layers for high performance inverted polymer solar cells","volume":"7","author":"Zhu","year":"2017","journal-title":"RSC Adv."},{"key":"ref_87","doi-asserted-by":"crossref","first-page":"2717","DOI":"10.1016\/j.apsusc.2010.10.051","article-title":"Resolving surface chemical states in XPS analysis of first row transition metals, oxides and hydroxides: Cr, Mn, Fe, Co and Ni","volume":"257","author":"Biesinger","year":"2011","journal-title":"Appl. Surf. Sci."},{"key":"ref_88","doi-asserted-by":"crossref","first-page":"1564","DOI":"10.1002\/sia.1984","article-title":"Investigation of multiplet splitting of Fe 2p XPS spectra and bonding in iron compounds","volume":"36","author":"Grosvenor","year":"2004","journal-title":"Surf. Interface Anal."},{"key":"ref_89","doi-asserted-by":"crossref","first-page":"194702","DOI":"10.1063\/5.0030350","article-title":"Covalency in Fe2O3 and FeO: Consequences for XPS satellite intensity","volume":"153","author":"Bagus","year":"2020","journal-title":"J. Chem. Phys."},{"key":"ref_90","doi-asserted-by":"crossref","first-page":"51603","DOI":"10.1063\/1.4975644","article-title":"Energy band alignment at the nanoscale","volume":"110","author":"Deuermeier","year":"2017","journal-title":"Appl. Phys. Lett."},{"key":"ref_91","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1038\/s41598-021-92021-5","article-title":"On the permittivity of titanium dioxide","volume":"11","author":"Bonkerud","year":"2021","journal-title":"Sci. Rep."},{"key":"ref_92","doi-asserted-by":"crossref","first-page":"015502","DOI":"10.1088\/1361-648X\/ab4150","article-title":"Assessing model-dielectric-dependent hybrid functionals on the antiferromagnetic transition-metal monoxides MnO, FeO, CoO, and NiO","volume":"32","author":"Liu","year":"2019","journal-title":"J. Phys. Condens. Matter"},{"key":"ref_93","doi-asserted-by":"crossref","first-page":"56","DOI":"10.1016\/j.apcatb.2008.01.034","article-title":"Visible-light-induced photocatalytic oxidation of carboxylic acids and aldehydes over N-doped TiO2 loaded with Fe, Cu or Pt","volume":"83","author":"Morikawa","year":"2008","journal-title":"Appl. Catal. Environ."},{"key":"ref_94","doi-asserted-by":"crossref","unstructured":"Ismail, M.A., Hedhili, M.N., Anjum, D.H., Singaravelu, V., and Chung, S.H. (2021). Synthesis and Characterization of Iron-Doped TiO2 Nanoparticles Using Ferrocene from Flame Spray Pyrolysis. Catalysts, 11.","DOI":"10.3390\/catal11040438"},{"key":"ref_95","doi-asserted-by":"crossref","first-page":"43910","DOI":"10.1063\/1.3624775","article-title":"Study of valence band structure of Fe doped anatase TiO2 thin films","volume":"110","author":"Bapna","year":"2011","journal-title":"J. Appl. Phys."},{"key":"ref_96","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1038\/srep34765","article-title":"Unravelling the Efficient Photocatalytic Activity of Boron-induced Ti3+ Species in the Surface Layer of TiO2","volume":"6","author":"Feng","year":"2016","journal-title":"Sci. Rep."},{"key":"ref_97","first-page":"2012","article-title":"Enhanced photoactivity of Fe + N Codoped anatase-rutile TiO2 nanowire film under visible light irradiation","volume":"1","author":"Li","year":"2012","journal-title":"Int. J. Photoenergy"},{"key":"ref_98","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s00339-020-3320-3","article-title":"Novel \u03b1-Fe2O3\/TiO2 nanocomposites with enhanced photocatalytic activity","volume":"126","author":"Mansour","year":"2020","journal-title":"Appl. Phys. Mater. Sci. Process."},{"key":"ref_99","doi-asserted-by":"crossref","first-page":"21","DOI":"10.2298\/PAC1201021G","article-title":"Preparation and characterization of Fe-doped TiO2 powders for solar light response and photocatalytic applications","volume":"6","author":"Ganesh","year":"2012","journal-title":"Process. Appl. Ceram."},{"key":"ref_100","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1016\/j.cattod.2012.04.035","article-title":"Visible light activated sulfur and iron co-doped TiO2 photocatalyst for the photocatalytic degradation of phenol","volume":"201","author":"Niu","year":"2013","journal-title":"Catal. Today"},{"key":"ref_101","doi-asserted-by":"crossref","first-page":"31","DOI":"10.4028\/www.scientific.net\/AMR.893.31","article-title":"Cr, Fe\u2014Doped Anatase TiO2 Photocatalyst: DFT+U Investigation on Band Gap","volume":"893","author":"Ginting","year":"2014","journal-title":"Adv. Mater. Res."},{"key":"ref_102","doi-asserted-by":"crossref","first-page":"6814","DOI":"10.1021\/acs.jpclett.8b02892","article-title":"How To Correctly Determine the Band Gap Energy of Modified Semiconductor Photocatalysts Based on UV-Vis Spectra","volume":"9","author":"Pacia","year":"2018","journal-title":"J. Phys. Chem. Lett."},{"key":"ref_103","doi-asserted-by":"crossref","first-page":"6959","DOI":"10.1007\/s10854-017-6396-6","article-title":"Enhanced electrochemical behavior of novel acceptor doped titanium dioxide catalysts for photocatalytic applications","volume":"28","author":"Shyniya","year":"2017","journal-title":"J. Mater. Sci. Mater. Electron."},{"key":"ref_104","doi-asserted-by":"crossref","first-page":"34302","DOI":"10.1039\/C4RA17076H","article-title":"New insights into fluorinated TiO2 (brookite, anatase and rutile) nanoparticles as efficient photocatalytic redox catalysts","volume":"5","author":"Wang","year":"2015","journal-title":"RSC Adv."},{"key":"ref_105","doi-asserted-by":"crossref","first-page":"321","DOI":"10.1002\/jrs.1250070606","article-title":"Raman Spectrum of Anatase, TiO2","volume":"7","author":"Ohsaka","year":"1978","journal-title":"J. Raman Spectrosc."},{"key":"ref_106","doi-asserted-by":"crossref","first-page":"12629","DOI":"10.1039\/c2jm30360d","article-title":"Preparation and characterization of Fe-doped TiO2 nanoparticles as a support for a high performance CO oxidation catalyst","volume":"22","author":"Yu","year":"2012","journal-title":"J. Mater. Chem."},{"key":"ref_107","doi-asserted-by":"crossref","first-page":"1574","DOI":"10.1016\/j.rinp.2019.01.054","article-title":"Characterisation of titanium oxide layers using Raman spectroscopy and optical profilometry: Influence of oxide properties","volume":"12","author":"Ekoi","year":"2019","journal-title":"Results Phys."},{"key":"ref_108","doi-asserted-by":"crossref","first-page":"1137","DOI":"10.1016\/j.apsusc.2016.08.018","article-title":"Anatase TiO2 nanocrystals anchored at inside of SBA-15 mesopores and their optical behavior","volume":"389","author":"Silva","year":"2016","journal-title":"Appl. Surf. Sci."},{"key":"ref_109","doi-asserted-by":"crossref","first-page":"2394","DOI":"10.1021\/es9707926","article-title":"Photoassisted degradation of dye pollutants. 3. Degradation of the cationic dye rhodamine B in aqueous anionic surfactant\/TiO2 dispersions under visible light irradiation: Evidence for the Need of Substrate Adsorption on TiO2 Particles","volume":"32","author":"Zhao","year":"1998","journal-title":"Environ. Sci. Technol."},{"key":"ref_110","doi-asserted-by":"crossref","first-page":"327","DOI":"10.1016\/j.ceramint.2010.09.008","article-title":"Photocatalytic properties of TiO2 sol-gel modified nanocomposite films","volume":"37","author":"Eshaghi","year":"2011","journal-title":"Ceram. Int."},{"key":"ref_111","doi-asserted-by":"crossref","first-page":"e03663","DOI":"10.1016\/j.heliyon.2020.e03663","article-title":"Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiation","volume":"6","author":"Alkaykh","year":"2020","journal-title":"Heliyon"},{"key":"ref_112","doi-asserted-by":"crossref","unstructured":"El Mragui, A., Logvina, Y., Pinto da Silva, L., Zegaoui, O., and C G Esteves da Silva, J. (2019). Synthesis of Fe- and Co-Doped TiO2 with Improved Photocatalytic Activity Under Visible Irradiation Toward Carbamazepine Degradation. Materials, 12.","DOI":"10.3390\/ma12233874"},{"key":"ref_113","doi-asserted-by":"crossref","first-page":"58","DOI":"10.1039\/C7CC05750D","article-title":"Facile formation of mesoporous structured mixed-phase (anatase\/rutile) TiO2 with enhanced visible light photocatalytic activity","volume":"54","author":"Fu","year":"2018","journal-title":"Chem. Commun."},{"key":"ref_114","doi-asserted-by":"crossref","first-page":"144916","DOI":"10.1016\/j.apsusc.2019.144916","article-title":"Controlling surface oxygen vacancies in Fe-doped TiO2 anatase nanoparticles for superior photocatalytic activities","volume":"507","author":"Han","year":"2020","journal-title":"Appl. Surf. Sci."},{"key":"ref_115","doi-asserted-by":"crossref","first-page":"20382","DOI":"10.1039\/C4CP02201G","article-title":"New understanding of the difference of photocatalytic activity among anatase, rutile and brookite TiO2","volume":"16","author":"Zhang","year":"2014","journal-title":"Phys. Chem. Chem. Phys."},{"key":"ref_116","doi-asserted-by":"crossref","first-page":"19184","DOI":"10.1021\/am5051907","article-title":"Oxygen vacancy enhanced photocatalytic activity of pervoskite SrTiO3","volume":"6","author":"Tan","year":"2014","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_117","doi-asserted-by":"crossref","first-page":"1806482","DOI":"10.1002\/adma.201806482","article-title":"Tuning Oxygen Vacancies in Ultrathin TiO2 Nanosheets to Boost Photocatalytic Nitrogen Fixation up to 700 nm","volume":"31","author":"Zhao","year":"2019","journal-title":"Adv. Mater."},{"key":"ref_118","doi-asserted-by":"crossref","first-page":"10705","DOI":"10.1021\/acscatal.9b03876","article-title":"Understanding the Phase-Induced Electrocatalytic Oxygen Evolution Reaction Activity on FeOOH Nanostructures","volume":"9","author":"Hu","year":"2019","journal-title":"ACS Catal."},{"key":"ref_119","unstructured":"Pichat, P. (2016). Photocatalysis: Fundamentals, Materials and Potential. Molecules, MDPI."},{"key":"ref_120","doi-asserted-by":"crossref","first-page":"18219","DOI":"10.1039\/C6CP03110B","article-title":"The role of reduction extent of graphene oxide in the photocatalytic performance of Ag\/AgX (X = Cl, Br)\/rGO composites and the pseudo-second-order kinetics reaction nature of the Ag\/AgBr system","volume":"18","author":"Gao","year":"2016","journal-title":"Phys. Chem. Chem. Phys."},{"key":"ref_121","doi-asserted-by":"crossref","unstructured":"Rytwo, G., and Zelkind, A.L. (2022). Evaluation of Kinetic Pseudo-Order in the Photocatalytic Degradation of Ofloxacin. Catalysts, 12.","DOI":"10.20944\/preprints202111.0573.v2"},{"key":"ref_122","doi-asserted-by":"crossref","first-page":"230","DOI":"10.1016\/j.bsecv.2019.12.001","article-title":"Porous ceramic supported TiO2 nanoparticles: Enhanced photocatalytic activity for Rhodamine B degradation","volume":"59","author":"Wermuth","year":"2020","journal-title":"Bolet\u00edn Soc. Espa\u00f1ola Cer\u00e1mica Vidr."},{"key":"ref_123","doi-asserted-by":"crossref","first-page":"2100196","DOI":"10.1002\/pssr.202100196","article-title":"Ultrafast Microwave Synthesis of WO3 Nanostructured Films for Solar Photocatalysis","volume":"15","author":"Nunes","year":"2021","journal-title":"Phys. Status Solidi\u2014Rapid Res. Lett."},{"key":"ref_124","doi-asserted-by":"crossref","first-page":"2099","DOI":"10.1007\/s11581-018-2440-7","article-title":"Electrodeposition of nanostructured \u03b3-MnO2 film for photodegradation of Rhodamine B","volume":"24","author":"Moulai","year":"2018","journal-title":"Ionics"}],"container-title":["Nanomaterials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2079-4991\/12\/6\/1005\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T22:39:07Z","timestamp":1760135947000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2079-4991\/12\/6\/1005"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,3,18]]},"references-count":124,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2022,3]]}},"alternative-id":["nano12061005"],"URL":"https:\/\/doi.org\/10.3390\/nano12061005","relation":{},"ISSN":["2079-4991"],"issn-type":[{"value":"2079-4991","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,3,18]]}}}