微波下硅胶负载交联壳聚糖的制备及其对Cr6＋的吸附  

Preparation and Adsorption Proper of Cross-Linked Chitosan Supported by Silica Gel under Microwave Irradiation for Cr^(6+)

作　　者：李雯[1,2] 张光华[1,2] 王慧萍[1] 

机构地区：[1]陕西科技大学,教育部轻化工助剂化学与技术重点实验室,陕西西安710021 [2]浙江温州轻工研究院,浙江温州325003

出　　处：《塑料》2010年第1期24-25,125,共3页Plastics

基　　金：浙江温州市科技计划项目(H20070015)

摘　　要：以硅胶为载体,将壳聚糖负载于其上,辅以交联剂,在微波条件下进行交联反应,制备出一种新型的吸附树脂。探讨无机基质、交联剂的种类及加入量对吸附性能的影响。结果表明:在以硅胶为基质时,戊二醛为交联剂且加入量为3.0%时,吸附性能最好,对Cr6+的吸附率可达到98.51%。A new type adsorbent was synthesized by the reaction of chitosan supported by silica gel which had supplemented by cross-linking agent under microware irradiation. The effects of various factors,such as inorganic matrix,kinds of cross-linking agent and adding amount on the adsorption behavior for Cr6＋ ion were discussed. The results showed that adsorption resin had better adsorbing performance for Cr6＋ ion at the optimal conditions which matrix was silica gel,when the cross-linking agent was glutaraldehyde and the dose was 3 % in the room temperature. Cr6＋ ion removing rate was above 98 %.

关 键 词：壳聚糖 硅胶 负载 Cr6+ 吸附率 

分 类 号：O633.21[理学—高分子化学]