摘要
为了获得一种高效可回收再生利用的染料废水吸附剂,用壳聚糖、氧化石墨烯（GO）和磁性Fe3O4粒子通过反相乳液交联法制备出壳聚糖/GO磁性复合微球（MCGO）.研究了油水比例对MCGO的粒径、形貌的影响,对MCGO的结构、形貌、热性能、磁性能等进行了表征.结果表明,MCGO平均粒径为1-5μm,饱和磁化强度（Ms）为18.35emu/g.通过考察GO含量、溶液pH值、溶液初始浓度以及吸附时间对吸附性能的影响,研究MCGO对甲基橙水溶液的吸附性能,研究结果对于制备高效和可回收利用的染料废水用吸附剂具有积极意义.
The chitosan/graphene oxide(GO)magnetic composite microsphere(MCGO)with an efficient and reusable adsorbent for dye wastewater was prepared using chitosan and GO and magnetic Fe3O4 by inverse emulsion crosslinking.The effects of water-oil proportion on the particle size and morphology was investigated.The chemical structure and microphology as well as thermal stability and magnetic property of the MCGO were characterized.The results show that the MCGO has an average particle size of 1~5μm,and the magnetization(Ms)is 18.35emu/g.The effects of GO content,solution pH,initial concentration and adsorption time on the adsorption performance were evaluated.The adsorption behavior of MCGO was investigated by studying adsorption of methyl orange.The research results have great positive significance to prepare efficient and reusable adsorbent for dye wastewater.
出处
《陕西科技大学学报（自然科学版）》
2016年第4期47-53,共7页
Journal of Shaanxi University of Science & Technology
基金
国家自然科学基金项目(21276152)
关键词
氧化石墨烯
壳聚糖
磁性复合微球
吸附
graphene oxide
chitosan
magnetic composite microspheres
adsorption
