新型淀粉基吸附材料对Cr^(3+)吸附性能的研究  

Study on adsorption behavior of novel starch-based adsorption material for chromium ions

作　　者：韩敏[1] 宋瑞娟[1] 李仲谨[2] 

机构地区：[1]西安文理学院化学系,陕西西安710065 [2]陕西科技大学化学与化工学院,陕西西安710021

出　　处：《应用化工》2009年第8期1105-1108,共4页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(50573046)

摘　　要：以可溶性淀粉为原料,N,N’-亚甲基双丙烯酰胺为预交联剂,环氧氯丙烷为交联剂,采用反相悬浮聚合得到了一种新型淀粉基吸附材料-淀粉微球,研究了微球对Cr3+的吸附行为。结果表明,微球对Cr3+吸附行为符合Langmiur方程和Freundlich方程;吸附Cr3+使微球的结晶结构被进一步破坏,结晶度下降。The starch microspheres were synthesized from soluble starch as raw material through inverse- suspension polymerization, using N, N＇ -methylenebisacrylamide as precrosslinking agent, epichlorohydrin as the crosslinking agent. Adsorption behavior of starch graft copolymer microspheres for Cr^3＋ was investigated. The result shows that the adsorption behavior of the copolymer microspheres for Cr^3＋is adapted to Langmiur and Freundlich adsorption isotherm equation. After Cr^3＋ was adsorbed in microspheres, the crystallinity of graft copolymer microspheres decreased.

关 键 词：淀粉基 离子吸附 CR3+ 

分 类 号：TS236.9[轻工技术与工程—粮食、油脂及植物蛋白工程]