biostudies-literatureShan HNatural Science Foundation of GuangxiGuangxi Key Laboratory of Theory and Technology for Environmental Pollution ControlNational Natural Science Foundation of ChinaGuangxi Education DepartmentGuilin University of Technology Program7156https://www.ebi.ac.uk/biostudies/studies/S-EPMC9605594biostudies-literatureUnknown15(20)A magnetite graphene oxide chitosan (MGOCS) composite microsphere was specifically prepared to efficiently adsorb As(III) from aqueous solutions. The characterization analysis of BET, XRD, VSM, TG, FTIR, XPS, and SEM-EDS was used to identify the characteristics and adsorption mechanism. Batch experiments were carried out to determine the effects of the operational parameters and to evaluate the adsorption kinetic and equilibrium isotherm. The results show that the MGOCS composite microsphere with a particle size of about 1.5 mm can be prepared by a straightforward method of dropping FeCl₂, graphene oxide (GO), and chitosan (CS) mixtures into NaOH solutions and then drying the mixed solutions at 45 °C. The produced MGOCS had a strong thermal stability with a mass loss of <30% Materials (Basel, Switzerland)On As(III) Adsorption Characteristics of Innovative Magnetite Graphene Oxide Chitosan Microsphere.PMC9605594421670262022GXNSFBA035600GLUTQD 201604741877194Liu YZeng CShan HPeng SZhan HfalseOn As(III) Adsorption Characteristics of Innovative Magnetite Graphene Oxide Chitosan Microsphere.A magnetite graphene oxide chitosan (MGOCS) composite microsphere was specifically prepared to efficiently adsorb As(III) from aqueous solutions. The characterization analysis of BET, XRD, VSM, TG, FTIR, XPS, and SEM-EDS was used to identify the characteristics and adsorption mechanism. Batch experiments were carried out to determine the effects of the operational parameters and to evaluate the adsorption kinetic and equilibrium isotherm. The results show that the MGOCS composite microsphere with a particle size of about 1.5 mm can be prepared by a straightforward method of dropping FeCl₂, graphene oxide (GO), and chitosan (CS) mixtures into NaOH solutions and then drying the mixed solutions at 45 °C. The produced MGOCS had a strong thermal stability with a mass loss of <30% 2022-01-01T00:00:00Z2022 Oct2025-04-19T12:06:09.481Z2025-04-19T12:06:09.481ZS-EPMC96055943629522310.3390/ma15207156