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.
作者
和芹
郭小松
魏金芳
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)
出处
《化学世界》
CAS
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。
