固定化胺密度对磁性PGMA-乙二胺微球吸附镉的影响

发布时间：2018-01-10 18:13

  本文关键词：固定化胺密度对磁性PGMA-乙二胺微球吸附镉的影响　出处：《光谱学与光谱分析》2016年S1期 　论文类型：期刊论文

  更多相关文章： PGMA 镉 磁性 红外 乙二胺

【摘要】：大量剧毒、致癌的含镉工业废水的超标排放,给人类健康和环境带来了极大的危害,吸附法作为处理含镉废水的有效方法之一,具有操作方便,设备简单,吸附剂可循环使用,金属离子可回收等优点[1]。本文中,合成了一系列不同浓度乙二胺(EDA)修饰的磁性聚甲基丙烯酸缩水甘油酯微球(mPGMA-EDA)。合成的微球经FTIR等手段进行表征并用于吸附水中的镉离子,同时用FTIR研究吸附镉离子前后微球的红外谱图变化,发现mPGMA-EDA主要通过胺基和羟基来吸附镉离子。
[Abstract]:A large number of highly toxic, carcinogenic cadmium containing industrial wastewater discharge, has brought great harm to human health and the environment. As one of the effective methods to treat cadmium wastewater, adsorption method has the advantages of convenient operation and simple equipment. The advantages of adsorbent can be recycled, metal ions can be recovered, etc. [1]. In this paper. A series of magnetic polyglycidyl methacrylate microspheres (mPGMA-EDA-EDAs) modified with different concentrations of ethylenediamine were synthesized. The synthesized microspheres were characterized by FTIR and used to adsorb cadmium ions in water. At the same time, FTIR was used to study the changes of infrared spectra of microspheres before and after cadmium adsorption. It was found that mPGMA-EDA adsorbs cadmium ion mainly by amine and hydroxyl groups.
【作者单位】： 中国科学院过程工程研究所;中国科学院青岛生物能源与过程研究所;
【基金】：国家自然科学基金项目(21106162)资助
【分类号】：O647.3
【正文快照】： 2.中国科学院青岛生物能源与过程研究所,山东青岛266101PGMA微球采用分散聚合法制备得到[2],合成过程见Scheme 1。首先通过分散聚合法合成PGMA微球。然后通过渗透沉积法对无磁性的PGMA微球赋予磁性。接下来利用乙二胺在微球表面修饰上氨基,2g磁性PGMA微球与50mL乙二胺水溶液在，

本文编号：1406295