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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Bibliographic Details
Published in:中国化学工程学报：英文版 2012, Vol.20 (1), p.105-110
Main Author: 王强 官月平 刘翔 杨明珠 任秀峰
Format: Article
Language:English
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.
ISSN:1004-9541
2210-321X