20.500.12556/DKUM-92924 New approach for adsorptive removal of the antibiotic ciprofloxacin: carboxymethyl-dextran-functionalised magnetic iron oxide nanomaterials Antibiotic residues in environmental media pose a significant health, social and economic problem and require effective removal strategies. This study presents a novel approach for the removal of the antibiotic ciprofloxacin from water sources using magnetic iron oxide nanoparticles (MNPs) synthesised by co-precipitation, and subsequently functionalised with the polysaccharide carboxymethyl-dextran (CMD). The prepared nanoadsorbent was characterised extensively by various physicochemical analyses, to evaluate its morphology, crystal structure, surface chemistry, electrokinetic properties, thermogravimetric properties and magnetic features. These analyses confirmed the successful functionalisation of the MNPs with CMD highlighting its potential for effective adsorption applications. The stability of CMD coating on MNPs was evaluated in terms of total carbon content, an important, yet often overlooked factor. The adsorption performance of MNPs@CMD for ciprofloxacin was investigated systematically by studying the effects of adsorbent dosage, pH, initial ciprofloxacin concentration, ionic strength, adsorption time and kinetics, temperature, and reusability. Under optimal conditions, nanoadsorbent exhibited a satisfactory maximum adsorption capacity of 14.71 mg/g, and maintained a removal eff iciency of 79 % after four cycles, with minimal desorption of CMD layer on the MNPs. These findings demonstrate the potential of this magnetic polysaccharide nanoadsorbent for effective removal of ciprofloxacin from aqueous environments, enabling magnetic recovery and reuse. Carboxymethyl-dextran-MNPs ciprofloxacin adsorption kemijska tehnologija nanotehnologija analizne metode adsorpcija true false true Elsevier Angleški jezik Slovenski jezik https://www.sciencedirect.com/science/article/pii/S0141813025045581?via%3Dihub Članek v reviji 2025-05-26 15:57:07 2025-05-26 15:57:08 2025-05-27 03:08:58 0000-00-00 00:00:00 2025 0 0 20 str. Vol. 312, [article no.] 144006 June 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-04-24 2025-05-05 2025-05-06 543.2/.9:620.3 237225219 10.1016/j.ijbiomac.2025.144006 1879-0003 1-s2.0-S0141813025045581-main.pdf 1-s2.0-S0141813025045581-main.pdf 1 02DB9AE32F93DB1A1954719A5BFAC033 d3971f71a82efafb4dd13a9351aa60d7a88cb0c0826e058c050ade675d44bc46 def5d214-3a39-11f0-80b9-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=191285 https://www.sciencedirect.com/science/article/pii/S0141813025045581?via%3Dihub 0 e8201a11-3a39-11f0-80b9-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=191286 Fakulteta za strojništvo Fakulteta za kemijo in kemijsko tehnologijo Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0