有机硅复合改性膨润土的制备及其对甲基橙的吸附性能  

Preparation and adsorption properties of modified bentonite compounding organic silicone to methyl orange

作　　者：王晓红 陈灵智[1] 曹建蕾 WANG Xiaohong;CHEN Lingzhi;CAO Jianlei(School of Chemical Engineering,Hengshui College,Hengshui 053000,China)

机构地区：[1]衡水学院化工学院,河北衡水053000

出　　处：《印染助剂》2020年第7期34-37,59,共5页Textile Auxiliaries

基　　金：河北省高等学校科学技术研究项目(Z2019079);河北省重点研发项目(18211110)。

摘　　要：为了寻找经济高效脱除水中染料的水处理剂,制备了有机硅复合改性膨润土(TEOS-BT),SEM、XRD表征结果表明:有机硅复合改性剂已进入膨润土层间。探讨了TEOS-BT对甲基橙的吸附性能,结果表明:在常温、甲基橙初始质量浓度200 mg/L、初始pH为3.1~4.6时,甲基橙的去除率接近100%。吸附规律较符合Freundlich等温吸附模型,动力学过程较符合准二级动力学模型,属于优惠吸附。In oder to search low-cost and efficient water treatment agents for dye removal,an modified bentonite compounding organic silicone(TEOS-BT)was synthesized.SEM,XRD showed that organic silicone composite had entered the bentonite layer.The adsorption properties of TEOS-BT to methyl orange were in⁃vestigated.The results showed that under the conditions of normal temperature,initial concentration of meth⁃yl orange 200 mg/L,initial pH 3.1~4.6,the removal rate of methyl orange was close to 100%.The adsorption behavior was in accordance with Freundlich isothermal adsorption model,and the kinetic process was in accor⁃dance with quasi second-order kinetic model,and the adsorption belonged to preferential adsorption.

关 键 词：改性 甲基橙 吸附 膨润土 

分 类 号：X788[环境科学与工程—环境工程]