Cellulose Functionalization via ATRP Grafting of Glycidyl Methacrylate for Cr(VI) Adsorption |
| |
作者姓名: | Chunxiang Lin Sha Qiao Danhui Liu Minghua Liu |
| |
作者单位: | College of Environment & Resources, Fuzhou University, Fuzhou, Fuj ian 350108, China |
| |
摘 要: | Cellulose was first grafted with glycidyl methacrylate (GMA) in an ionic liquid via atom transfer radical polymerization (ATRP) and then the introduced epoxy groups were reacted with ethanediamine (EDA) to obtain an amino adsorbent. The grafting copolymer and the obtained adsorbent were characterized by FTIR, aH NMR, TEM and SEM. The results showed that the grafted copolymers had grafted polymer chains with well-controlled molecu- lar weight and polydispersity, the polymerization was a controlled system. The cellulose adsorbent had numerous micropores on the surface and showed high performance for Cr(VI) adsorption. The adsorption behavior was pH dependent and the sorption equilibrium was achieved within 2 h on the adsorbent.
|
关 键 词: | 甲基丙烯酸缩水甘油酯 接枝共聚物 Cr(VI) ATRP 吸附剂 纤维素 原子转移自由基聚合 功能化 |
本文献已被 维普 等数据库收录! |
|