PDMDAAC-阳离子膨润土性能的研究  

STUDY ON PROPERTY AND ADSORPTION OF PDMDAAC ON BENTONITE

作　　者：刘玉真[1] 岳钦艳[2] 李倩[2] 高宝玉[2] 成杰民[1] 

机构地区：[1]山东师范大学人口.资源与环境学院,济南250014 [2]山东大学环境科学与工程学院,济南250100

出　　处：《山东师范大学学报（自然科学版）》2006年第2期92-95,共4页Journal of Shandong Normal University(Natural Science)

基　　金：山东省自然科学基金资助项目(Y2003B03)

摘　　要：以工业聚二甲基二烯丙基氯化铵(PDMDAAC)和钠基膨润土为原料制备了PDMDAAC-阳离子膨润土,研究了PDM-DAAC在膨润土上的吸附行为,探讨了改性前后膨润土的电性情况,利用透射电镜和X射线衍射观察了膨润土改性前后的形貌变化和层间距的变化,最后用阳离子膨润土处理实际印染废水,实验了阳离子膨润土处理印染废水的效果.结果表明,PDMDAAC在膨润土上的吸附属于Langmuir吸附,同时也符合Freundlich吸附,改性前后膨润土的电性、形貌和层间距都发生了变化,处理废水的实验表明,阳离子膨润土对印染废水的脱色效果较好,对COD也有一定的去除率.PDMDAAC- bentonites were synthesised by modifying Na-bentonite. The adsorption behavior was studied, and Zeta potential of bentonite and Cation- bentonites were investigated. The morphology of betonite and Cation- bentonites were observed by using TEM. The variation of interlayer was also investigated by using XRD. The treatment of practical dyeing wastewater by using bentonite and PDMDAAC- bentonites were also studied. The experimental results showed that adsorption isotherms fit to the Langmuir and Freundlich equation. The morphology of bentonite and the pitch of interlayer were changed. The removal rates of dye and COD were increased as compared with unmodified bentonite.

关 键 词：改性 吸附 ZETA电位 形貌 X射线衍射 

分 类 号：O647.316[理学—物理化学]