十二烷基三甲基溴化铵膨润土对铀(Ⅵ)的吸附研究  

Adsorption of U(Ⅵ) by Dodecyltrimethylammonium Bromide Bentonite

作　　者：陈槐 陈泉水[1,2] 罗太安[1,2] 王抚抚 熊小红[1] 骆溢超 

机构地区：[1]东华理工大学放射性地质与勘探技术国防重点学科实验室,江西南昌330013 [2]东华理工大学材料科学与工程系,江西南昌330013

出　　处：《非金属矿》2018年第2期79-81,共3页Non-Metallic Mines

基　　金：科技部国际合作项目(2015DFR61020)

摘　　要：利用十二烷基三甲基溴化铵(DTAB)为有机改性剂,以钠基膨润土为原料,制备出了改性膨润土(DTAB-Bent),通过静态吸附试验探讨了p H值、时间、铀初始质量浓度以及温度等条件对吸附溶液中铀的影响,研究了吸附铀(Ⅵ)的动力学及吸附等温模型。利用X射线衍射(XRD)、傅里叶红外光谱(FT-IR)分析对改性后膨润土进行了表征。This paper presented an organic modified bentonite which used dodecyltrimethylammonium bromide （DTAB） as modifier, Na-Bent as raw material. The batch static adsorption experiments on U（VI） in solution were carried out through the discussions of pH, contact time and other environmental factors, the adsorption kinetics and isotherm model were also investigated. Series of characterizations of modified bentonite were conducted to compare the changes of bentonite after adsorption.

关 键 词：十二烷基三甲基溴化铵 膨润土 铀 吸附 

分 类 号：X703[环境科学与工程—环境工程]