PDMDAAC改性膨润土的制备及吸附性能  

Preparation and Adsorptive Properties of Modified Bentonite by PDMDAAC

作　　者：王大卫[1] 邵红[1] 刘相龙[1] 丁佳[1] 

机构地区：[1]沈阳化工大学环境与安全工程学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2015年第1期18-22,共5页Journal of Shenyang University of Chemical Technology

摘　　要：以膨润土为原料,聚二甲基二烯丙基氯化铵(PDMDAAC)为改性剂,制备一种新型水处理剂——PDMDAAC有机改性膨润土.处理苯胺模拟废水,以苯胺去除率为考核指标,确定最佳制备条件为:膨润土中改性剂的量为800 g/kg,土液比为150 g/L,搅拌时间为60 min,温度为20℃,苯胺去除率可达80%.对改性膨润土进行X射线衍射(XRD),扫描电镜(SEM)和红外光谱(FTIR)分析,结果表明:PDMDAAC并未进入膨润土层间,只是负载于膨润土表面,有效增大了膨润土的吸附能力.Using bentonite as rawmaterial and PDMDAAC as modifierprepared a newtype of water treatment agent—PDMDAAC organic modified bentonite. With treating simulated anilinewastewater,aniline removal rate was as evaluation index to determine the optimum conditions as follows： bentonite per kilogram modifier was 800 g / kg,soil liquid ratio was 150 g / L,stirring time was 60 min,the mixingtemperature was 20 ℃,aniline removal was up to 80 %. Modification of bentonite by X ray diffraction（ XRD）,scanning electron microscopy（ SEM） and infrared spectroscopy（ FT-IR） analysis,the results showthat,PDMDAAC did not enter into the bentonite interlayer,just loaded on the surface in the bentonite,effectively increased the adsorption capacity of bentonite.

关 键 词：改性膨润土 聚二甲基二烯丙基氯化铵 模拟苯胺废水 去除率 

分 类 号：F703.1[经济管理—产业经济]