{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T11:55:28Z","timestamp":1774958128846,"version":"3.50.1"},"reference-count":83,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2021,2,25]],"date-time":"2021-02-25T00:00:00Z","timestamp":1614211200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Pt. Ravishankar Research Fellowship Scheme","award":["V.R. No. 3114\/4\/Fin.\/Sch.\/\/2018"],"award-info":[{"award-number":["V.R. No. 3114\/4\/Fin.\/Sch.\/\/2018"]}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["CEECINST\/00102\/2018 and UIDB\/50006\/2020 (Associate Laboratory for Green Chemistry\u2014LAQV)"],"award-info":[{"award-number":["CEECINST\/00102\/2018 and UIDB\/50006\/2020 (Associate Laboratory for Green Chemistry\u2014LAQV)"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>In spite of the growing demand for new antibiotics, in the recent years, the occurrence of fluoroquinolone antibiotics (as a curative agent for urinary tract disorders and respiratory problems) in wastewater have drawn immense attention. Traces of antibiotic left-overs are present in the water system, causing noxious impact on human health and ecological environments, being a global concern. Our present work aims at tackling the major challenge of toxicity caused by antibiotics. This study deals with the efficient adsorption of two commonly used fluoroquinolone (FQ) antibiotics, i.e., Ofloxacin (OFX) and Moxifloxacin (MOX) on spherical hydrogel beads generated from methionine\u2012functionalized graphene oxide\/ sodium alginate polymer (abbreviated Met-GO\/SA) from aqueous solutions. The composition, morphology and crystal phase of prepared adsorbents were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), high-resolution transmission electron microscopy (HR-TEM) and thermogravimetric analysis\/differential thermogravimetry (TGA\/DTG). Batch adsorption tests are followed to optimize the conditions required for adsorption process. Both functionalized and non-functionalized adsorbents were compared to understand the influence of several experimental parameters, such as, the solution pH, contact time, adsorbent dosage, temperature and initial concentration of OFX and MOX on adsorption. The obtained results indicated that the functionalized adsorbent (Met-GO\/SA) showed a better adsorption efficiency when compared to non-functionalized (GO\/SA) adsorbent. Further, the Langmuir isotherm was validated as the best fitting model to describe adsorption equilibrium and pseudo second-order-kinetic model fitted well for both types of adsorbate. The maximum adsorption capacities of Met-GO\/SA were 4.11 mg\/g for MOX and 3.43 mg\/g for OFX. Thermodynamic parameters, i.e., \u2206G\u00b0, \u2206H\u00b0 and \u2206S\u00b0 were also calculated. It was shown that the overall adsorption process was thermodynamically favorable, spontaneous and exothermic in nature. The adsorbents were successfully regenerated up to four cycles with 0.005 M NaCl solutions. Overall, our work showed that the novel Met-GO\/SA nanocomposite could better contribute to the removal of MOX and OFX from the liquid media. The gel beads prepared have adequate features, such as simple handling, eco-friendliness and easy recovery. Hence, polymer gel beads are promising candidates as adsorbents for large-scale water remediation.<\/jats:p>","DOI":"10.3390\/nano11030568","type":"journal-article","created":{"date-parts":[[2021,2,26]],"date-time":"2021-02-26T02:08:17Z","timestamp":1614305297000},"page":"568","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":77,"title":["Methionine-Functionalized Graphene Oxide\/Sodium Alginate Bio-Polymer Nanocomposite Hydrogel Beads: Synthesis, Isotherm and Kinetic Studies for an Adsorptive Removal of Fluoroquinolone Antibiotics"],"prefix":"10.3390","volume":"11","author":[{"given":"Sushma","family":"Yadav","sequence":"first","affiliation":[{"name":"Department of Chemistry, Govt. V.Y.T. PG Autonomous College, Durg 491001, India"}]},{"given":"Anupama","family":"Asthana","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Govt. V.Y.T. PG Autonomous College, Durg 491001, India"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8180-7292","authenticated-orcid":false,"given":"Ajaya Kumar","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Govt. V.Y.T. PG Autonomous College, Durg 491001, India"}]},{"given":"Rupa","family":"Chakraborty","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Govt. V.Y.T. PG Autonomous College, Durg 491001, India"}]},{"given":"S.","family":"Vidya","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Kalyan PG College, Durg 490006, India"}]},{"given":"Ambrish","family":"Singh","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9913-4671","authenticated-orcid":false,"given":"S\u00f3nia A. C.","family":"Carabineiro","sequence":"additional","affiliation":[{"name":"LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,2,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"40","DOI":"10.1016\/j.jhazmat.2012.04.068","article-title":"Occurrence of pharmaceutical compounds in wastewater and sludge from wastewater treatment plants: Removal and ecotoxicological impact of wastewater discharges and sludge disposal","volume":"239","author":"Martin","year":"2012","journal-title":"J. Hazard. Mater."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1016\/j.watres.2014.10.027","article-title":"Occurrence of pharmaceuticals in a water supply system and related human health risk assessment","volume":"72","author":"Gaffney","year":"2015","journal-title":"Water Res."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Patel, J., Singh, A.K., and Carabineiro, S.A.C. (2020). Assessing the photocatalytic degradation of fluoroquinolone norfloxacin by Mn:ZnS quantum dots: Kinetic study, degradation pathway and influencing factors. Nanomaterials, 10.","DOI":"10.3390\/nano10050964"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"136","DOI":"10.1016\/j.jpba.2014.11.020","article-title":"Detection of a wide variety of human and veterinary fluoroquinolone antibiotics in municipal wastewater and wastewater-impacted surface water","volume":"106","author":"He","year":"2015","journal-title":"J. Pharm. Biomed. Anal."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1111\/j.1365-2885.1996.tb00001.x","article-title":"Fluoroquinolones in animal health","volume":"19","author":"Brown","year":"1996","journal-title":"J. Vet. Pharmacol. Ther."},{"key":"ref_6","first-page":"14","article-title":"Quinolone antimicrobial agents: Mechanism of action and resistance development","volume":"12","author":"Bryan","year":"1989","journal-title":"Clin. Investig. Med."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"342","DOI":"10.1016\/j.jhazmat.2011.12.063","article-title":"Adsorption of ofloxacin on carbon nanotubes: Solubility, pH and cosolvent effects","volume":"211","author":"Peng","year":"2012","journal-title":"J. Hazard. Mater."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"83","DOI":"10.5004\/dwt.2019.24573","article-title":"A novel approach to remove ofloxacin antibiotic from industrial effluent using magnetic carbon nanocomposite prepared from sawdust of Dalbergia sissoo by batch and membrane hybrid technology","volume":"165","author":"Wahab","year":"2019","journal-title":"Desalin. Water Treat."},{"key":"ref_9","first-page":"1365","article-title":"Occurrence of antibiotics in drinking water","volume":"387","author":"Ye","year":"2007","journal-title":"Anal. Bioanal. Chem."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1016\/j.talanta.2016.05.080","article-title":"Fluorescent labeling of ciprofloxacin and norfloxacin and its application for residues analysis in surface water","volume":"159","author":"Prutthiwanasan","year":"2016","journal-title":"Talanta"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"313","DOI":"10.1016\/j.chemosphere.2015.04.081","article-title":"Sunlight induced degradation of fluoroquinolones in wastewater effluent: Photoproducts identification and toxicity","volume":"134","author":"Sturini","year":"2015","journal-title":"Chemosphere"},{"key":"ref_12","first-page":"1","article-title":"Adsorption Mechanism of Ciprofloxacin from Water by Synthesized Birnessite","volume":"2015","author":"Xing","year":"2015","journal-title":"Adv. Mater. Sci. Eng."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s41204-020-00075-z","article-title":"Treatment of pharmaceutical wastewater by heterogeneous Fenton process: An innovative approach","volume":"5","author":"Jain","year":"2020","journal-title":"Nanotechnol. Environ. Eng."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"3468","DOI":"10.1021\/es903490h","article-title":"Biodegradation and Adsorption of Antibiotics in the Activated Sludge Process","volume":"44","author":"Li","year":"2010","journal-title":"Environ. Sci. Technol."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"196","DOI":"10.1016\/j.jcis.2016.08.068","article-title":"Adsorptive removal of ciprofloxacin by sodium alginate\/graphene oxide composite beads from aqueous solution","volume":"484","author":"Fei","year":"2016","journal-title":"J. Colloid Interf. Sci."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"104","DOI":"10.1016\/j.bej.2017.11.018","article-title":"Effects of pH, dissolved humic acid and Cu2+ on the adsorption of norfloxacin on montmorillonite-biochar composite derived from wheat straw","volume":"130","author":"Zhang","year":"2018","journal-title":"Biochem. Eng. J."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"576","DOI":"10.1016\/j.carbpol.2016.10.025","article-title":"Effect of Cu(II) ions on the enhancement of tetracycline adsorption by Fe3O4@SiO2-chitosan\/graphene oxide nanocomposite","volume":"157","author":"Huang","year":"2017","journal-title":"Carbohydr. Polym."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1016\/j.cej.2014.09.032","article-title":"Recyclable CNTs\/Fe3O4 magnetic nanocomposites as adsorbents to remove bisphenol A from water and their regeneration","volume":"260","author":"Li","year":"2015","journal-title":"Chem. Eng. J."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"16","DOI":"10.1016\/j.matchemphys.2012.03.035","article-title":"Facile synthesis, characterization of a MnFe2O4\/activated carbon magnetic composite and its effectiveness in tetracycline removal","volume":"135","author":"Shao","year":"2012","journal-title":"Mater. Chem. Phys."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"750","DOI":"10.1016\/j.jhazmat.2012.11.003","article-title":"Preparation of molecularly imprinted polymer nanoparticles for selective removal of fluoroquinolone antibiotics in aqueous solution","volume":"244","author":"Tan","year":"2013","journal-title":"J. Hazard. Mater."},{"key":"ref_21","first-page":"4902","article-title":"Sorption and photocatalytic degradation of ciprofloxacin and ofloxacin in aqueous suspensions of TiO2 and ZnO catalysts","volume":"8","author":"Bouyarmane","year":"2017","journal-title":"J. Mater. Environ. Sci."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1141","DOI":"10.1016\/j.arabjc.2015.01.006","article-title":"Sorption of ofloxacin and chrysoidine by grape stalk. A representative case of biomass removal of emerging pollutants from wastewater","volume":"12","author":"Nurchi","year":"2019","journal-title":"Arab. J. Chem."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"2616","DOI":"10.1039\/C7RA11964J","article-title":"Adsorption of tetracycline antibiotics from an aqueous solution onto graphene oxide\/calcium alginate composite fibers","volume":"8","author":"Zhu","year":"2018","journal-title":"RSC Adv."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Hashmi, A., Singh, A.K., Jain, B., and Carabineiro, S.A.C. (2020). Chloramine-T\/N Bromosuccinimide\/FeCl3\/KIO3 Decorated Graphene Oxide Nanosheets and Their Antibacterial Activity. Nanomaterials, 10.","DOI":"10.3390\/nano10010105"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"507","DOI":"10.1039\/C4CC07446G","article-title":"TiO2\u2013B nanorods on reduced graphene oxide as anode materials for Li ion batteries","volume":"51","author":"Zhen","year":"2015","journal-title":"Chem. Commun."},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Pan, L., Wang, Z., Yang, Q., and Huang, R. (2018). Efficient Removal of Lead, Copper and Cadmium Ions from Water by a Porous Calcium Alginate\/Graphene Oxide Composite Aerogel. Nanomaterials, 8.","DOI":"10.3390\/nano8110957"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"533","DOI":"10.1016\/j.apsusc.2014.04.070","article-title":"Covalently functionalized graphene sheets with biocompatible natural amino acids","volume":"307","author":"Mallakpour","year":"2014","journal-title":"Appl. Surf. Sci."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"5807","DOI":"10.1007\/s10853-017-0818-y","article-title":"L-cysteine-reduced graphene oxide\/poly(vinyl alcohol) ultralight aerogel as a broad-spectrum adsorbent for anionic and cationic dyes","volume":"52","author":"Xiao","year":"2017","journal-title":"J. Mater. Sci."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"10717","DOI":"10.1038\/s41598-018-29133-y","article-title":"Removal of Mn (II) by Sodium Alginate\/Graphene Oxide Composite Double-Network Hydrogel Beads from Aqueous Solutions","volume":"8","author":"Yang","year":"2018","journal-title":"Sci. Rep."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"725","DOI":"10.1007\/s00289-015-1301-z","article-title":"Radiation synthesis and characterization of sodium alginate\/chitosan\/hydroxyapatite nanocomposite hydrogels: A drug delivery system for liver cancer","volume":"72","author":"AbouTaleb","year":"2015","journal-title":"Polym. Bull."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1016\/j.carbpol.2013.05.093","article-title":"Synthesis of interpenetrating network hydrogel from poly (acrylic acid-co-hydroxyethyl methacrylate) and sodium alginate: Modeling and kinetics study for removal of synthetic dyes from water","volume":"98","author":"Mandal","year":"2013","journal-title":"Carbohydr. Polym."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1021\/acssuschemeng.6b01003","article-title":"Adsorptive Removal of Fluoroquinolones from Water by Pectin-Functionalized Magnetic Nanoparticles: Process Optimization Using a Spectrofluorimetric Assay","volume":"5","author":"Attallah","year":"2017","journal-title":"ACS Sustain. Chem. Eng."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"350","DOI":"10.1071\/EN16188","article-title":"An adsorption and thermodynamic study of ofloxacin on marine sediments","volume":"14","author":"Cao","year":"2017","journal-title":"Environ. Chem."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1339","DOI":"10.1021\/ja01539a017","article-title":"Preparation of Graphitic Oxide","volume":"80","author":"Hummers","year":"1958","journal-title":"J. Am. Chem. Soc."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1190","DOI":"10.1007\/s10853-010-4892-7","article-title":"Preparation and characterization of graphene\/NiO nanocomposites","volume":"46","author":"Ji","year":"2011","journal-title":"J. Mater. Sci."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"1985","DOI":"10.1016\/j.jece.2016.03.024","article-title":"Glycine functionalized magnetic nanoparticle entrapped calcium alginate beads: A promising adsorbent for removal of Cu(II) ions","volume":"4","author":"Asthana","year":"2016","journal-title":"J. Environ. Chem. Eng."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Yadav, S., Asthana, A., Chakraborty, R., Jain, B., Singh, A.K., Carabineiro, S.A.C., and Susan, M.A.B.H. (2020). Cationic Dye Removal Using Novel Magnetic\/Activated Charcoal\/\u03b2-Cyclodextrin\/Alginate Polymer Nanocomposite. Nanomaterials, 10.","DOI":"10.3390\/nano10010170"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1016\/S1872-5805(19)30020-4","article-title":"Efficient removal of organic dyes using a three-dimensional graphene aerogel with excellent","volume":"34","author":"Ding","year":"2019","journal-title":"New Carbon Mater."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"543","DOI":"10.1016\/j.carbon.2013.05.032","article-title":"Targeted Thiolation of Graphene Oxide and its Utilization as Precursor for Graphene\/Silver Nanoparticles Composites","volume":"61","author":"Orth","year":"2013","journal-title":"Carbon"},{"key":"ref_40","first-page":"1499","article-title":"Preparation of a Novel Chelating Resin Bearing amidino thiourea Moieties and its Removal Properties for Hg(II) Ions in Aqueous Solution","volume":"51","author":"Deng","year":"2016","journal-title":"Sep. Sci. Technol."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.memsci.2018.01.026","article-title":"Amino acid functionalized graphene oxide based nanocomposite membrane electrolytes for direct methanol fuel cells","volume":"551","author":"Rambabu","year":"2018","journal-title":"J. Membr. Sci."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/j.saa.2017.03.032","article-title":"Antibacterial properties of amino acid functionalized silver nanoparticles decorated on graphene oxide sheets","volume":"181","author":"Chandraker","year":"2017","journal-title":"Spectrochim. Acta Part A"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"6350","DOI":"10.1021\/acsami.8b17131","article-title":"Multifunctional Binding Chemistry on Modified Graphene Composite for Selective and Highly Efficient Adsorption of Mercury","volume":"11","author":"Yap","year":"2019","journal-title":"ACS Appl. Mater. Inter."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"13546","DOI":"10.1039\/C7RA11796E","article-title":"Adsorptive removal of antibiotics from water using peanut shells from agricultural waste","volume":"8","author":"Li","year":"2018","journal-title":"RSC Adv."},{"key":"ref_45","first-page":"100274","article-title":"Application of three-dimensional graphene hydrogels for removal of ofloxacin from aqueous solutions","volume":"12","author":"Ehtesabia","year":"2019","journal-title":"Environ. Nanotechnol. Monitor. Manag."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"5856","DOI":"10.1021\/ja800745y","article-title":"Flexible graphene film via the filtration of water-soluble noncovalent functionalized graphene sheets","volume":"130","author":"Xu","year":"2008","journal-title":"J. Am. Chem. Soc."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"12673","DOI":"10.1039\/c1cc15230k","article-title":"Graphene oxide: An efficient and reusable carbocatalyst for Aza-Michael addition of amines to activated alkenes","volume":"47","author":"Verma","year":"2011","journal-title":"Chem. Commun."},{"key":"ref_48","first-page":"23","article-title":"Particle size and shape analysis using image J with customized tool for segmentation of particles","volume":"4","author":"Rishi","year":"2015","journal-title":"Int. J. Comput. Sci. Commun. Netw."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"2100","DOI":"10.1039\/C4RA12036A","article-title":"Porous zirconium alginate beads adsorbent for fluoride adsorption from aqueous solutions","volume":"5","author":"Qiusheng","year":"2015","journal-title":"RSC Adv."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"2942","DOI":"10.1007\/s11356-017-0596-8","article-title":"Removal of fluoroquinolone from aqueous solution using graphene oxide: Experimental and computational elucidation","volume":"25","author":"Yadav","year":"2018","journal-title":"Environ. Sci. Pollut. Res."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"287","DOI":"10.1080\/10406638.2018.1464039","article-title":"Ofloxacin adsorption on chitosan\/biochar composite: Kinetics, isotherms, and effects of solution chemistry","volume":"39","author":"Zhu","year":"2019","journal-title":"Polycycl. Aromat. Compd."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1016\/j.colsurfa.2013.02.030","article-title":"Synthesis of reduced graphene oxide\/magnetite composites and investigation of their adsorption performance of fluoroquinolone antibiotics","volume":"424","author":"Tang","year":"2013","journal-title":"Colloids Surf. A"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"111376","DOI":"10.1016\/j.molliq.2019.111376","article-title":"Adsorption of tetracycline, ofloxacin and cephalexin antibiotics on boron nitride nanosheets from aqueous solution","volume":"293","author":"Bangari","year":"2019","journal-title":"J. Mol. Liq."},{"key":"ref_54","doi-asserted-by":"crossref","unstructured":"Nogueira, J., Ant\u00f3nio, M., Mikhalev, S.M., Fateixa, S., Trindade, T., and Silva, A.L.D. (2018). Porous Carrageenan-Derived Carbons for Efficient Ciprofloxacin Removal from Water. Nanomaterials, 8.","DOI":"10.3390\/nano8121004"},{"key":"ref_55","first-page":"345","article-title":"Copper, nickel and lead adsorption from aqueous solution using chitosan-immobilized on bentonite in ternary system","volume":"22","author":"Futalan","year":"2012","journal-title":"Sustain. Environ. Res."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"2221","DOI":"10.1021\/ja02268a002","article-title":"The constitution and fundamental properties of solids and liquids. Part I. Solids","volume":"38","author":"Langmuir","year":"1916","journal-title":"J. Am. Chem. Soc."},{"key":"ref_57","first-page":"221","article-title":"Decontamination of ofloxacin: Optimization of removal process onto sawdust using response surface methodology","volume":"57","author":"Qureshi","year":"2016","journal-title":"Desalin. Water Treat."},{"key":"ref_58","first-page":"85","article-title":"Uber die adsorption in losungen","volume":"57","author":"Freundlich","year":"1906","journal-title":"Z. Phys. Chem."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"251","DOI":"10.2166\/wst.1997.0284","article-title":"Selective adsorption on fibrous activated carbon of organics from aqueous solution: Correlation between adsorption and molecular structure","volume":"35","author":"Brasquet","year":"1997","journal-title":"Water Sci. Technol."},{"key":"ref_60","first-page":"1","article-title":"About the Theory of so-Called Adsorption of Soluble Substances","volume":"24","author":"Legergren","year":"1898","journal-title":"K. Sven. Vetenskapsakad. Handl. Band"},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"451","DOI":"10.1016\/S0032-9592(98)00112-5","article-title":"Pseudo-Second Order Model for Sorption Processes","volume":"34","author":"Ho","year":"1999","journal-title":"Process Biochem."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1061\/JSEDAI.0000430","article-title":"Kinetics of Adsorption on Carbon from Solution","volume":"89","author":"Weber","year":"1963","journal-title":"J. San. Eng. Div. ASCE"},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"2322","DOI":"10.1021\/es803268b","article-title":"Mechanisms for strong adsorption of tetracycline to carbon nanotubes: A comparative study using activated carbon and graphite as adsorbents","volume":"7","author":"Ji","year":"2009","journal-title":"Environ. Sci. Technol."},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"2562","DOI":"10.1021\/ie901150x","article-title":"Kinetic and pseudo-second-order modelling of lead biosorption onto pine cone powder","volume":"49","author":"Ofomaja","year":"2010","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"1528","DOI":"10.1016\/j.jhazmat.2010.10.081","article-title":"Removal of cephalexin from aqueous solutions by original and Cu(II)\/Fe(III) impregnated activated carbons developed from lotus stalks Kinetics and equilibrium studies","volume":"185","author":"Liu","year":"2011","journal-title":"J. Hazard. Mater."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"110550","DOI":"10.1016\/j.ecoenv.2020.110550","article-title":"Iron\/zinc and phosphoric acid modified sludge biochar as an efficient adsorbent for fluoroquinolones antibiotics removal","volume":"196","author":"Ma","year":"2020","journal-title":"Ecotoxicol. Environ. Saf."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"49","DOI":"10.12989\/aer.2015.4.1.049","article-title":"Aqueous phase removal of ofloxacin using adsorbents from Moringa oleifera pod husks","volume":"4","author":"Wuana","year":"2015","journal-title":"Adv. Environ. Res."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1016\/j.jhazmat.2007.12.115","article-title":"Biosorption of Cu(II) from aqueous solutions by mimosa tannin gel","volume":"157","author":"Sengil","year":"2008","journal-title":"J. Hazard. Mater."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"254","DOI":"10.1016\/j.psep.2017.05.011","article-title":"Ofloxacin adsorption by activated carbon derived from luffa sponge: Kinetic, isotherm, and thermodynamic analyses","volume":"112","author":"Kong","year":"2017","journal-title":"Process Saf. Environ. Prot."},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"170731","DOI":"10.1098\/rsos.170731","article-title":"Efficient removal of tetracycline with KOH-activated graphene from aqueous solution","volume":"4","author":"Ma","year":"2017","journal-title":"R. Soc. Open Sci."},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"201","DOI":"10.1016\/j.jhazmat.2014.03.063","article-title":"Removal of sulfamethoxazole and ciprofloxacin from aqueous solutions by graphene oxide","volume":"282","author":"Chen","year":"2015","journal-title":"J. Hazard. Mater."},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"12947","DOI":"10.3390\/su70912947","article-title":"Adsorptive Removal of Fluoroquinolone Antibiotics Using Bamboo Biochar","volume":"7","author":"Wang","year":"2015","journal-title":"Sustainability"},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"142","DOI":"10.13171\/mjc92190921700ar","article-title":"Adsorptive Removal Study of the Frequently Used Fluoroquinolone Antibiotics\u2014Moxifloxacin and Norfloxacin from Wastewaters using Natural Zeolites","volume":"9","author":"Rubashvili","year":"2019","journal-title":"Mediterr. J. Chem."},{"key":"ref_74","doi-asserted-by":"crossref","first-page":"64","DOI":"10.1016\/j.jwpe.2014.03.006","article-title":"Effective removal of Amoxicillin, Cephalexin, Tetracycline and Penicillin G from aqueous solutions using activated carbon nanoparticles prepared from vine wood","volume":"1","author":"Pouretedal","year":"2014","journal-title":"J. Water Process Eng."},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"89","DOI":"10.11648\/j.ab.20170505.12","article-title":"Removal of Ciprofloxacin Hydrochloride from Aqueous Solution by Pomegranate Peel Grown in Alziedab Agricultural Scheme\u2014River Nile State, Sudan","volume":"5","author":"Elhussien","year":"2017","journal-title":"Adv. Biochem."},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1016\/j.molliq.2011.07.005","article-title":"Thermodynamic and kinetic parameters of ciprofloxacin adsorption onto modified coal fly ash from aqueous solution","volume":"163","author":"Zhang","year":"2011","journal-title":"J. Mol. Liq."},{"key":"ref_77","first-page":"408","article-title":"Enhanced adsorption of norfloxacin on modified TiO2 particles prepared via surface molecular imprinting technique","volume":"57","author":"Li","year":"2016","journal-title":"Desalin. Water Treat."},{"key":"ref_78","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_79","doi-asserted-by":"crossref","first-page":"124840","DOI":"10.1016\/j.jhazmat.2020.124840","article-title":"Adsorption of cationic dyes, drugs and metal from aqueous solutions using a polymer composite of magnetic\/\u03b2-cyclodextrin\/activated charcoal\/Na alginate: Isotherm, kinetics and regeneration studies","volume":"409","author":"Yadav","year":"2021","journal-title":"J. Hazard. Mater."},{"key":"ref_80","first-page":"950","article-title":"Assessement of the Ofloxacin (Novecin) Adsorption from aqueous solutions by Two Agricultural Wastes","volume":"2","author":"Hassan","year":"2014","journal-title":"Int. J. Adv. Sci. Tech. Res."},{"key":"ref_81","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1016\/j.jcis.2004.08.150","article-title":"Sorption of the antibiotic ofloxacin to mesoporous and nonporous alumina and silica","volume":"283","author":"Goyne","year":"2005","journal-title":"J. Colloid Interf. Sci."},{"key":"ref_82","doi-asserted-by":"crossref","unstructured":"Yu, Z., Hu, C., Dichiara, A.B., Jiang, W., and Gu, J. (2020). Cellulose Nanofibril\/Carbon Nanomaterial Hybrid Aerogels for Adsorption Removal of Cationic and Anionic Organic Dyes. Nanomaterials, 10.","DOI":"10.3390\/nano10010169"},{"key":"ref_83","doi-asserted-by":"crossref","first-page":"105015","DOI":"10.1016\/j.jece.2020.105015","article-title":"Desorption of chloramphenicol from ordered mesoporous carbon-alginate beads: Effects of operating parameters, and isotherm, kinetics, and regeneration studies","volume":"9","author":"Ahammad","year":"2021","journal-title":"J. Environ. Chem. Eng."}],"container-title":["Nanomaterials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2079-4991\/11\/3\/568\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T05:28:15Z","timestamp":1760160495000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2079-4991\/11\/3\/568"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,2,25]]},"references-count":83,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2021,3]]}},"alternative-id":["nano11030568"],"URL":"https:\/\/doi.org\/10.3390\/nano11030568","relation":{},"ISSN":["2079-4991"],"issn-type":[{"value":"2079-4991","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,2,25]]}}}