磁性壳聚糖微球的制备及对Cr(Ⅵ)的吸附研究  

Study on the Preparation of Magnetic Chitosan Microspheres and Its Adsorption on Cr(Ⅵ)

作　　者：谢清如 王雨露[2] 张鹏[2] XIE Qing-ru;WANG Yu-lu;ZHANG Peng(International College of Hunan Agricultural University,Changsha,Hunan 410128;College of Civil Engineering,Hunan University of Science&Technology,Xiangtan,Hunan 411201)

机构地区：[1]湖南农业大学国际学院,湖南长沙410128 [2]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《安徽农业科学》2018年第11期49-51,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(41502331);湖南省自然科学基金项目(2018JJ3174)

摘　　要：[目的]成功制备磁性壳聚糖(MCTS)并进行结构表征,探讨其对Cr(Ⅵ)的吸附能力。[方法]采用红外光谱与扫描电镜对MCTS进行结构表征,考察了Cr(Ⅵ)初始浓度、MCTS投加量、吸附时间、温度对吸附效果的影响。[结果]当Cr(Ⅵ)初始浓度为10 mg/L,MCTS投加量为0.05 g,吸附时间为70 min,水浴温度控制为45℃时,不调节pH,去除率最大可达98.6%。[结论]MCTS已经成功制备,其对Cr(Ⅵ)具有较好的吸附效果。[Objective]In order to prepare the magnetic chitosan(MCTS)and study its adsorption behavior on Cr(Ⅵ).[Method]The structure of MCTS was characterized by FTIR and SEM.The effect of initial concentration of Cr(Ⅵ),MCTS dosage,adsorption time and temperature was investigated on the Cr(Ⅵ)adsorption.[Result]When the initial concentration was 10 mg/L,the MCTS dosage was 0.05 g,the adsorption time was 70 min,the bath temperature was 45℃,the maximum removal rate could reach 98.6%.[Conclusion]MCTS has been successfully prepared and has a good adsorption behavior on Cr(Ⅵ).

关 键 词：壳聚糖 磁性壳聚糖微球 吸附 六价铬离子 

分 类 号：S181[农业科学—农业基础科学]