羧甲基纤维素/壳聚糖/膨润土凝胶的制备及吸附性能研究  

Synthesis and absorption performance of carboxymethyl chitosan/bentonite gels

作　　者：张成桂[1] 宋长华[2] 李晓红[2] 王基伟[1] 

机构地区：[1]大理学院药化学院,大理671000 [2]中国石油吉林石化公司研究院,吉林132021

出　　处：《化工新型材料》2014年第2期130-132,共3页New Chemical Materials

基　　金：云南省科技厅项目(2011C1132);云南洱海治理项目(YY2011012)

摘　　要：以壳聚糖、膨润土和羧甲基纤维素为原料制备了羧甲基纤维素/壳聚糖/膨润土凝胶吸附剂。通过红外光谱和扫描电镜对凝胶结构进行了表征,并考察了其吸附性能。结果表明凝胶各物质之间形成了结合。凝胶吸附剂对溶液中的苯酚具有很好的吸附效果,在适当条件下对苯酚的去除率可以达到92.6%以上。再生实验表明凝胶可回收利用。A new kind of adsorbent based on chitosan, bentonite and carboxymethyl cellulose （CMC）was synthe-sized. The structure of the gel was characterized by fourier transform infrared（FT-IR）and scanning electron microscope （SEM）. Its adsorption properties were also investigated. The results showed that there was strong interaction in different reagent. And the adsorbent can effectively adsorb the phenol in aqueous solution,the removal ratio of phenol was over 92. 6% under suitable condition. Furthermore,regenerated adsorption experiments indicated that the adsorbent can be reused.

关 键 词：膨润土 壳聚糖 羧甲基纤维素 凝胶 吸附 再生 

分 类 号：TQ424[化学工程]