Micron-sized Magnetic Polymer Microspheres for Adsorption and Separation of Cr（VI） from Aqueous Solution

The magnetic poly-（methacrylate-divinyl benzene） microspheres with micron size were synthesized by modified suspension polymerization method. Adsorption of Cr（VI） from aqueous solution by magnetic poly-（MA-DVB） microspheres with surface amination was investigated. The adsorption processes were carri...

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Published in中国化学工程学报：英文版 Vol. 20; no. 1; pp. 105 - 110
Main Author 王强 官月平 刘翔 杨明珠 任秀峰
Format Journal Article
LanguageEnglish
Published 2012
Subjects
Cr（Ⅵ）
吸附分离
微米
最佳pH值
水溶液
甲基丙烯酸甲酯
磁性微球
聚合物微球
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Summary:The magnetic poly-（methacrylate-divinyl benzene） microspheres with micron size were synthesized by modified suspension polymerization method. Adsorption of Cr（VI） from aqueous solution by magnetic poly-（MA-DVB） microspheres with surface amination was investigated. The adsorption processes were carried out under diversified conditions of pH value, adsorption time and temperature to evaluate the perlbrmance of the magnetic microspheres. The optimum pH value for Cr（VI） adsorption was found as 3. The adsorption capacity increased with adsorption time and attained an optimum at 60 rain. The adsorption processes for magnetic microspheres was endothermic reaction, and the adsorption capacity increased with increasing temperature.
Bibliography:magnetic poly-（MA-DVB） microsphere, surface amino group, chromium adsorption, adsorption condition
WANG Qiang , GUAN Yueping , LIU Xiang, YANG Mingzhu REN Xiufeng School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
The magnetic poly-（methacrylate-divinyl benzene） microspheres with micron size were synthesized by modified suspension polymerization method. Adsorption of Cr（VI） from aqueous solution by magnetic poly-（MA-DVB） microspheres with surface amination was investigated. The adsorption processes were carried out under diversified conditions of pH value, adsorption time and temperature to evaluate the perlbrmance of the magnetic microspheres. The optimum pH value for Cr（VI） adsorption was found as 3. The adsorption capacity increased with adsorption time and attained an optimum at 60 rain. The adsorption processes for magnetic microspheres was endothermic reaction, and the adsorption capacity increased with increasing temperature.
11-3270/TQ
ISSN:1004-9541
2210-321X