{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T19:39:57Z","timestamp":1770147597766,"version":"3.49.0"},"reference-count":60,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2020,11,8]],"date-time":"2020-11-08T00:00:00Z","timestamp":1604793600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100015622","name":"Ministerul Cercet\u0103rii \u015fi Inov\u0103rii","doi-asserted-by":"publisher","award":["31PFE\/2018"],"award-info":[{"award-number":["31PFE\/2018"]}],"id":[{"id":"10.13039\/501100015622","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100015622","name":"Ministerul Cercet\u0103rii \u015fi Inov\u0103rii","doi-asserted-by":"publisher","award":["INCDCP ICECHIM Bucharest 2019-2022 Core Program PN. 19.23 - Chem-Ergent, 2018 Project No.19.23.03."],"award-info":[{"award-number":["INCDCP ICECHIM Bucharest 2019-2022 Core Program PN. 19.23 - Chem-Ergent, 2018 Project No.19.23.03."]}],"id":[{"id":"10.13039\/501100015622","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Currently, hydroxyapatite is probably the most researched material, due to its multiple applications in medical, environmental, or cultural heritage, when the classical structure is modified and calcium is displaced partially or totally with different metals. By changing the classical structure of the hydroxyapatite, new morphologies can be obtained, thus allowing final applications different from those of the initial hydroxyapatite material. However, their properties should be tuned for the desired application. In this context, the present paper describes the synthesis and characterization (through energy-dispersive X-ray fluorescence, X-ray diffraction, FTIR, thermal analysis, and transmission electron microscopy) of iron oxide\/manganese-containing phosphatic phase composite materials, developed in order to obtain the enhancement of final environmental applications (photodegradation of dyes, adsorption of organic compounds). The composite material was tested for photocatalytic properties, after embedding in hydrosoluble film-forming materials. Photocatalytic coatings show different activity during the photodecomposition of Methylene Blue, used as a model of a contaminant. The photocatalytic activities of the materials were discussed in relationship with both the phosphatic materials and the magnetic components. Finally, other environmental applications were studied for the developed materials (adsorption of non-steroidal anti-inflammatory drugs\u2014paracetamol and ibuprofen), revealing an enhancement of the adsorption capacity of the phosphatic material upon addition of the magnetic phase.<\/jats:p>","DOI":"10.3390\/ma13215034","type":"journal-article","created":{"date-parts":[[2020,11,8]],"date-time":"2020-11-08T19:03:37Z","timestamp":1604862217000},"page":"5034","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Iron Oxide\/Phosphatic Materials Composites with Potential Applications in Environmental Protection"],"prefix":"10.3390","volume":"13","author":[{"given":"Georgiana Cornelia","family":"Ispas","sequence":"first","affiliation":[{"name":"National Institute for Research &amp; Development in Chemistry and Petrochemistry\u2013ICECHIM Bucharest, 060021 Bucharest, Romania"},{"name":"Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Raluca","family":"Manea","sequence":"additional","affiliation":[{"name":"National Institute for Research &amp; Development in Chemistry and Petrochemistry\u2013ICECHIM Bucharest, 060021 Bucharest, Romania"},{"name":"Department of Bioresources and Polymer Science, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roxana Ioana","family":"Brazdis","sequence":"additional","affiliation":[{"name":"National Institute for Research &amp; Development in Chemistry and Petrochemistry\u2013ICECHIM Bucharest, 060021 Bucharest, Romania"},{"name":"Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anda Maria","family":"Baroi","sequence":"additional","affiliation":[{"name":"National Institute for Research &amp; Development in Chemistry and Petrochemistry\u2013ICECHIM Bucharest, 060021 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toma","family":"Fistos","sequence":"additional","affiliation":[{"name":"National Institute for Research &amp; Development in Chemistry and Petrochemistry\u2013ICECHIM Bucharest, 060021 Bucharest, Romania"},{"name":"Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4224-9157","authenticated-orcid":false,"given":"Radu Claudiu","family":"Fierascu","sequence":"additional","affiliation":[{"name":"National Institute for Research &amp; Development in Chemistry and Petrochemistry\u2013ICECHIM Bucharest, 060021 Bucharest, Romania"},{"name":"Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9801-8097","authenticated-orcid":false,"given":"Monica Florentina","family":"Raduly","sequence":"additional","affiliation":[{"name":"National Institute for Research &amp; Development in Chemistry and Petrochemistry\u2013ICECHIM Bucharest, 060021 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,11,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1016\/j.biortech.2016.01.078","article-title":"Adsorption-desorption behavior of magnetic amine\/Fe3O4 functionalized biopolymer resin towards anionic dyes from wastewater","volume":"210","author":"Song","year":"2016","journal-title":"Bioresour. Technol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"358","DOI":"10.1016\/j.apsusc.2014.07.139","article-title":"Modified Fe3O4- hydroxyapatite nanocomposites as heterogeneous catalysts in three UV, Vis and Fenton like degradation systems","volume":"319","author":"Valizadeh","year":"2014","journal-title":"Appl. Surf. Sci."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1033","DOI":"10.1016\/j.jece.2019.103338","article-title":"Enhanced adsorption of dyes on microwave-assisted synthesized magnetic zeolite-hydroxyapatite nanocomposite","volume":"7","author":"Piri","year":"2019","journal-title":"J. Environ. Chem. Eng."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1007\/s11144-017-1197-8","article-title":"Efficient removal of phenol from aqueous solutions using hydroxyapatite and substituted hydroxyapatites","volume":"122","author":"Fierascu","year":"2017","journal-title":"React. Kinet. Mech. Catal."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"330","DOI":"10.1016\/j.watres.2014.09.026","article-title":"Adsorptive removal of methylene blue by rhamnolipid-functionalized graphene oxide from wastewater","volume":"67","author":"Wu","year":"2014","journal-title":"Water Res."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1016\/j.apsusc.2017.08.087","article-title":"Tuned apatitic materials: Synthesis, characterization and potential antimicrobial applications","volume":"438","author":"Fierascu","year":"2018","journal-title":"Appl. Surf. Sci."},{"key":"ref_7","first-page":"100233","article-title":"Synthesis of hydroxyapatite and hydroxyapatite\/Fe3O4 nanocomposite for removal of heavy metals","volume":"12","author":"Vahdat","year":"2019","journal-title":"Environ. Nanotechnol. Monit. Manag."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"213096","DOI":"10.1016\/j.ccr.2019.213096","article-title":"Insight on water remediation application using magnetic nanomaterials and biosorbents","volume":"403","author":"Maksoud","year":"2020","journal-title":"Coord. Chem. Rev."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"1155","DOI":"10.4236\/jep.2019.109069","article-title":"Removal of Some Toxic Ions from Seawater and Wastewater by Sorption onto Natural, Synthetic Hydroxyapatite and Alginate-Hydroxyapatite Composite Nanoparticles: A Comparative Study","volume":"10","author":"Shreadah","year":"2019","journal-title":"J. Environ. Prot."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"100188","DOI":"10.1016\/j.colcom.2019.100188","article-title":"Synthesis and properties of alumina-hydroxyapatite composites from natural phosphate for phenol removal from water","volume":"31","author":"Bouiahya","year":"2020","journal-title":"Colloid Interface Sci. Commun."},{"key":"ref_11","first-page":"1","article-title":"Using modified nano-hydroxyapatite for removing iron ions contaminants groundwater","volume":"7","author":"Mamoon","year":"2019","journal-title":"Int. J. Eng. Adv. Technol. Stud."},{"key":"ref_12","unstructured":"Kyzas, G.K., and Mitropoulos, A.C. (2019). Magnetic nanocomposite adsorbents. Composite Nanoadsorbents, Elsevier."},{"key":"ref_13","first-page":"1","article-title":"Analytical characterization and potential antimicrobial and photocatalytic applications of metal-substituted hydroxyapatite materials","volume":"52","author":"Fierascu","year":"2018","journal-title":"Anal. Lett."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"244","DOI":"10.1016\/j.jwpe.2015.07.001","article-title":"Magnetic adsorbents for the treatment of water\/wastewater\u2014A review","volume":"7","author":"Mehta","year":"2015","journal-title":"J. Water Process. Eng."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1016\/j.materresbull.2017.03.006","article-title":"Fe3O4@HAP-enhanced photocatalytic degradation of Acid Red 73 in aqueous suspension: Optimization, kinetic, and mechanism studies","volume":"91","author":"Golshan","year":"2017","journal-title":"Mater. Res. Bull."},{"key":"ref_16","first-page":"32","article-title":"Ag doped hydroxyapatite nano particles for removal of methyl red azo dye from aqueous solutions (kinetic and thermodynamic studies)","volume":"15","author":"Frashah","year":"2020","journal-title":"Euras. J. Anal. Chem."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1016\/j.jhazmat.2015.06.032","article-title":"High efficient multifunctional Ag3PO4 loaded hydroxyapatite nanowires for water treatment","volume":"299","author":"Li","year":"2015","journal-title":"J. Hazard. Mater."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"481","DOI":"10.1007\/s11814-015-0172-1","article-title":"Adsorption and photocatalytic degradation of organic dyes onto crystalline and amorphous hydroxyapatite: Optimization, kinetic and isotherm studies","volume":"33","author":"Valizadeh","year":"2015","journal-title":"Korean J. Chem. Eng."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"111596","DOI":"10.1016\/j.molliq.2019.111596","article-title":"Magnetic hydroxyapatite nanocomposite: Impact on eriochrome black-T removal and antibacterial activity","volume":"294","author":"Sahoo","year":"2019","journal-title":"J. Mol. Liq."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1016\/j.jcis.2017.01.105","article-title":"Removal of Pb(II) and methylene blue from aqueous solution by magnetic hydroxyapatite-immobilized oxidized multi-walled carbon nanotubes","volume":"494","author":"Wang","year":"2017","journal-title":"J. Colloid Interface Sci."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"1700201","DOI":"10.1002\/ppap.201700201","article-title":"High efficiency plasma treatment of water contaminated with organic compounds. Study of the degradation of ibuprofen","volume":"15","author":"Magureanu","year":"2018","journal-title":"Plasma Process. Polym."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1132","DOI":"10.1016\/j.ijbiomac.2019.11.058","article-title":"Using Fe3O4-coated nanofibers based on cellulose acetate\/chitosan for adsorption of Cr(VI), Ni(II) and phenol from aqueous solutions","volume":"154","author":"Karamipour","year":"2020","journal-title":"Int. J. Biol. Macromol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"6504","DOI":"10.1016\/j.jece.2018.09.026","article-title":"Synthesis of hydroxyapatite-zirconia nanocomposite through sonochemical route: A potential catalyst for degradation of phenolic compounds","volume":"6","author":"Ekka","year":"2018","journal-title":"J. Environ. Chem. Eng."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"103142","DOI":"10.1016\/j.jece.2019.103142","article-title":"Adsorbents and removal strategies of non-steroidal anti-inflammatory drugs from contaminated water bodies","volume":"7","author":"Mlunguza","year":"2019","journal-title":"J. Environ. Chem. Eng."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"451","DOI":"10.1080\/19440049.2019.1704445","article-title":"Risk assessment of antimony, barium, beryllium, boron, bromine, lithium, nickel, strontium, thallium and uranium concentrations in the New Zealand diet","volume":"37","author":"Pearson","year":"2020","journal-title":"Food Addit. Contam. Part A"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1016\/j.apsusc.2017.04.061","article-title":"Synthesis and magnetic properties of inverted core-shell polyaniline-ferrite composite","volume":"414","author":"Donescu","year":"2017","journal-title":"Appl. Surf. Sci."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Raditoiu, V., Raditoiu, A., Raduly, F.M., Amariutei, V., Gifu, C., and Anastasescu, M. (2017). Photocatalytic Behavior of Water-Based Styrene-Acrylic Coatings Containing TiO2 Sensitized with Metal-Phthalocyanine Tetracarboxylic Acids. Coatings, 7.","DOI":"10.3390\/coatings7120229"},{"key":"ref_28","unstructured":"ISO 8780-2:1990 (1990). Pigments and Extenders\u2014Methods of Dispersion for Assessment of Dispersion Characteristics, International Organization for Standardization."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"5734","DOI":"10.1016\/S1452-3981(23)19655-6","article-title":"Synthesis and some physical properties of magnetite (Fe3O4) nanoparticles","volume":"7","author":"Zidan","year":"2012","journal-title":"Int. J. Electrochem. Sci."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"223","DOI":"10.1016\/j.jscs.2019.12.004","article-title":"Synthesis and characterization of magnetite nanoparticles for photocatalysis of nitrobenzene","volume":"24","author":"Villegas","year":"2020","journal-title":"J. Saudi Chem. Soc."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Mastai, Y. (2013). Mechanochemical Synthesis of Magnetite\/Hydroxyapatite Nanocomposites for Hyperthermia. Materials Science\u2014Advanced Topics, IntechOpen.","DOI":"10.5772\/56700"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"64919","DOI":"10.1039\/C4RA11283K","article-title":"Magnetic, X-ray and M\u00f6ssbauer studies on magnetite\/maghemite core\u2013shell nanostructures fabricated through an aqueous route","volume":"4","author":"Iyengar","year":"2014","journal-title":"RSC Adv."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"354","DOI":"10.1080\/02726351.2011.585220","article-title":"Superparamagnetic Unusual Behavior of Micrometric Magnetite Monodisperse Monocrystals Synthesized by Fe-EDTA Thermal Decomposition","volume":"30","author":"Chirita","year":"2012","journal-title":"Part. Sci. Technol."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1709","DOI":"10.1016\/j.eurpolymj.2012.07.012","article-title":"Superparamagnetic magnetite-divinylbenzene-maleic anhydride copolymer nanocomposites obtained by dispersion polymerization","volume":"48","author":"Donescu","year":"2012","journal-title":"Eur. Polym. J."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"99","DOI":"10.2147\/IJN.S79985","article-title":"Preparation and characterization of an iron oxide-hydroxyapatite nanocomposite for potential bone cancer therapy","volume":"10","author":"Sundaram","year":"2015","journal-title":"Int. J. Nanomed."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"9365","DOI":"10.3390\/ijms14059365","article-title":"Simple and Rapid Synthesis of Magnetite\/Hydroxyapatite Composites for Hyperthermia Treatments via a Mechanochemical Route","volume":"14","author":"Iwasaki","year":"2013","journal-title":"Int. J. Mol. Sci."},{"key":"ref_37","first-page":"647","article-title":"A review on the thermal stability of calcium apatites","volume":"110","author":"Gross","year":"2011","journal-title":"J. Therm. Anal. Calorim."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"437","DOI":"10.1007\/s10856-012-4817-x","article-title":"Zinc-substituted hydroxyapatite: A biomaterial with enhanced bioactivity and antibacterial properties","volume":"24","author":"Thian","year":"2013","journal-title":"J. Mater. Sci. Mater. Med."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"04928","DOI":"10.1016\/j.heliyon.2020.e04928","article-title":"One-pot hydrothermal synthesis of a magnetic hydroxyapatite nanocomposite for MR imaging and pH-Sensitive drug delivery applications","volume":"6","author":"Kermanian","year":"2020","journal-title":"Heliyon"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"113928","DOI":"10.1016\/j.molliq.2020.113928","article-title":"Photodegradation of methylene blue and some emerging pharmaceutical micropollutants with an aqueous suspension of WZnO-NH2@H3PW12O40 nanocomposite","volume":"317","author":"Tayebee","year":"2020","journal-title":"J. Mol. Liq."},{"key":"ref_41","first-page":"1729","article-title":"Self-Assembly of Nanostructured Hydroxyapatite Spheres for Photodegradation of Methylene Blue Dye","volume":"18","author":"Mary","year":"2019","journal-title":"Mater. Today: Proc."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"1693","DOI":"10.1016\/j.cherd.2013.04.018","article-title":"Greener photocatalysts: Hydroxyapatite derived from waste mussel shells for the photocatalytic degradation of a model azo dye wastewater","volume":"91","author":"Shariffuddin","year":"2013","journal-title":"Chem. Eng. Res. Des."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"180","DOI":"10.1016\/j.jpcs.2018.01.035","article-title":"Surfactant-free solvothermal synthesis of Hydroxyapatite nested bundles for the effective photodegradation of cationic dyes","volume":"116","author":"Mary","year":"2018","journal-title":"J. Phys. Chem. Solids"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/j.jphotochem.2017.12.027","article-title":"Effect of dopant (Co, Ni) concentration and hydroxyapatite compositing on photocatalytic activity of titania towards dye degradation","volume":"356","year":"2018","journal-title":"J. Photochem. Photobiol. A Chem."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"3705","DOI":"10.1016\/j.jeurceramsoc.2017.02.029","article-title":"Developing titania-hydroxyapatite-reduced graphene oxide nanocomposite coatings by liquid flame spray deposition for photocatalytic applications","volume":"37","author":"Huang","year":"2017","journal-title":"J. Eur. Ceram. Soc."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1016\/j.molcata.2006.11.038","article-title":"Preparation and characterization of a titanium-substituted hydroxyapatite photocatalyst","volume":"267","author":"Hu","year":"2007","journal-title":"J. Mol. Catal. A Chem."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"123294","DOI":"10.1016\/j.matchemphys.2020.123294","article-title":"Enhanced photocatalytic and antifungal activity of hydroxyapatite\/\u03b1-AgVO3 composites","volume":"252","author":"Machado","year":"2020","journal-title":"Mater. Chem. Phys."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/S0926-3373(00)00276-9","article-title":"Photocatalytic degradation pathway of methylene blue in water","volume":"31","author":"Houas","year":"2001","journal-title":"Appl. Catal. B Environ."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"8633","DOI":"10.1039\/C6RA28640B","article-title":"Plasmon induced enhanced photocatalytic activity of gold loaded hydroxyapatite nanoparticles for methylene blue degradation under visible light","volume":"7","author":"Mondal","year":"2017","journal-title":"RSC Adv."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"432","DOI":"10.1016\/j.carbon.2012.11.059","article-title":"The effects of the surface oxidation of activated carbon, the solution pH and the temperature on adsorption of ibuprofen","volume":"54","author":"Guedidi","year":"2013","journal-title":"Carbon"},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"537","DOI":"10.1016\/j.cej.2010.09.068","article-title":"Artemisia vulgaris-derived mesoporous honeycomb-shaped activated carbon for ibuprofen adsorption","volume":"165","author":"Dubey","year":"2010","journal-title":"Chem. Eng. J."},{"key":"ref_52","doi-asserted-by":"crossref","unstructured":"Baccar, R., Sarra, M., Bouzid, J., Feki, M.M., and Blanquez, P. (2012). Removal of pharmaceutical compounds by activated carbon prepared from agricultural by-product. Chem. Eng. J., 310\u2013317.","DOI":"10.1016\/j.cej.2012.09.099"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1007\/s13762-011-0020-8","article-title":"Sorptive removal of ibuprofen from water using selected soil minerals and activated carbon","volume":"9","author":"Behera","year":"2012","journal-title":"Int. J. Environ. Sci. Technol."},{"key":"ref_54","doi-asserted-by":"crossref","unstructured":"Mac\u00edas-Garc\u00eda, A., Garc\u00eda-Sanz-Calcedo, J., Carrasco-Amador, J.P., and Segura-Cruz, R. (2019). Adsorption of Paracetamol in Hospital Wastewater through Activated Carbon Filters. Sustainability, 11.","DOI":"10.3390\/su11092672"},{"key":"ref_55","doi-asserted-by":"crossref","unstructured":"Moaca, E.-A., Mihali, C.-V., Maca\u015foi, I.-G., (B\u0103bu\u0163\u0103), R.R., \u015eoica, C.M., Dehelean, C., P\u0103curariu, C., and Florescu, S. (2019). Fe3O4@C Matrix with Tailorable Adsorption Capacities for Paracetamol and Acetylsalicylic Acid: Synthesis, Characterization, and Kinetic Modeling. Molecules, 24.","DOI":"10.3390\/molecules24091727"},{"key":"ref_56","doi-asserted-by":"crossref","unstructured":"Chen, Y., Lan, T., Duan, L., Wang, F., Zhao, B., Zhang, S., and Wei, W. (2015). Adsorptive Removal and Adsorption Kinetics of Fluoroquinolone by Nano-Hydroxyapatite. PLoS ONE, 10.","DOI":"10.1371\/journal.pone.0145025"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1016\/j.jhazmat.2008.03.076","article-title":"Study the adsorption of phenol from aqueous solution on hydroxyapatite nanopowders","volume":"161","author":"Lin","year":"2009","journal-title":"J. Hazard. Mater."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1002\/clen.201000241","article-title":"Preparation of Magnetic Hydroxyapatite and Their Use as Recyclable Adsorbent for Phenol in Wastewater","volume":"39","author":"Wang","year":"2011","journal-title":"CLEAN Soil Air Water"},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"372","DOI":"10.3390\/ceramics2020029","article-title":"Functionalization of Hydroxyapatite Ceramics: Raman Mapping Investigation of Silanization","volume":"2","author":"Siniscalco","year":"2019","journal-title":"Ceramics"},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"600","DOI":"10.1002\/jbm.10280","article-title":"Synthesis and characterization of hydroxyapatite crystals: A review study on the analytical methods","volume":"62","author":"Koutsopoulos","year":"2002","journal-title":"J. Biomed. Mater. Res."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/13\/21\/5034\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T10:30:49Z","timestamp":1760178649000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/13\/21\/5034"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,11,8]]},"references-count":60,"journal-issue":{"issue":"21","published-online":{"date-parts":[[2020,11]]}},"alternative-id":["ma13215034"],"URL":"https:\/\/doi.org\/10.3390\/ma13215034","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,11,8]]}}}