Microfluidic synthesis of renewable biosorbent with highly comprehensive adsorption performance for copper （II）

作     者：Yong Zhu Zhishan Bai Bingjie Wang Linlin Zhai Wenqiang Luo 

作者机构：State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and Technology Shanghai 200237 China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2017年第11卷第2期

页      面：238-251页

核心收录：

学科分类：08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：We acknowledge the support by the National Basic Research Program of China （2014CB748500） and the National Natural Science Foundation of China （Grant Nos. 51578239 and 51322805）. 

主　　题：chitosan microsphere microfluidic technol- ogy adsorption copper （II） 

摘      要：A microsphere biosorbent with uniform size （CV = 1.52%）, controllable morphology and component, and high mechanical strength was synthesized from chitosan by microfluidic technology combining with chemical crosslinking and solvent extraction. This chitosan microsphere （CS-MS） was prepared with a two-step solidification process, which was acquired by drying for the enhancement of mechanical property in final. The adsorption behavior of CS-MS towards copper （II） and main influencing factors on adsorption performance were investigated by batch experiments. Kinetic data high-lighted dominant chemical bonding along with electrons transferring in adsorption process. Isothermal analysis indicated that adsorption capacity was relevant to the number of active site. All these explorations provided a new direction for preparing highly comprehensive performance sorbent used in heavy metal treatment via microfluidic technology.