Fe_(3)O_(4)@壳聚糖磁球的制备及对刚果红的吸附性能研究  

Preparation of Fe_(3)O_(4)@Chitosan Magnetic Spheres and Their Adsorption Properties for Congo Red Dye

作　　者：和芹[1] 郭小松[1] 魏金芳[1] 赵帅 He Qin;Guo Xiaosong;Wei Jinfang;Zhao Shuai(Department of Chemistry,Tangshan Teacher′s College Tangshan Key laboratory of Green Specialty Chemicals,Tangshan,Hebei 063000,China;Cangzhou Risun Chemicals Company Limited,Cangzhou,Hebei 061000,China)

机构地区：[1]唐山师范学院化学系唐山市绿色专用化学品实验室,河北唐山063000 [2]沧州旭阳化工有限公司,河北沧州061000

出　　处：《化学世界》2023年第5期336-341,共6页Chemical World

基　　金：唐山师范学院(No.2022C41);唐山师范学院创新(No.CX201910)资助项目。

摘　　要：以Fe^(3+)、Fe^(2+)以及壳聚糖为主要原料,制备Fe_(3)O_(4)@壳聚糖磁球。选择染料刚果红进行静态吸附,考察吸附条件对Fe_(3)O_(4)@壳聚糖吸附量的影响。结果表明,pH为4时具有较好的吸附效果,吸附时间为120 min时Fe_(3)O_(4)@壳聚糖的吸附达到平衡。Lagergren动力学模拟和韦伯-莫里斯粒子内扩散模拟结果显示以化学吸附为主,由吸附剂表面吸附和孔道内缓慢扩散共同控制。Fe_(3)O_(4)@chitosan magnetic spheres were prepared from Fe^(3+),Fe^(2+)and chitosan.Congo red dye was then selected for static adsorption,and the influence of factors on the adsorption capacity of Fe_(3)O_(4)@chitosan was investigated.The results showed that the adsorption capacity of Fe_(3)O_(4)@chitosan was better at initial pH=4,and the adsorption equilibrium was basically achieved at about 120 min.The adsorption kinetics demonstrated that the adsorption process was mainly chemical adsorption,and the process was influenced by surface adsorption and internal porosity.

关 键 词：Fe_(3)O_(4)@壳聚糖磁球 刚果红 静态吸附 

分 类 号：TG111.92[金属学及工艺—物理冶金] TQ611[金属学及工艺—金属学]