凹凸棒石复合材料协同处理含铜和亚甲基蓝废水的实验研究  

Experimental study on synergistic treatment of copper ion andmethylene blue wastewater with attapulgite composite materials

作　　者：黄小益 张晶晶 乔娇娇 刘洋 淳杰 杨之漩 张婷[1] HUANG Xiaoyi;ZHANG Jingjing;QIAO Jiaojiao;LIU Yang;CHUN Jie;YANG Zhixuan;ZHANG Ting(School of Petroleum and Chemical,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050

出　　处：《应用化工》2024年第11期2604-2610,2615,共8页Applied Chemical Industry

基　　金：甘肃省科技重大专项计划(21ZD2JA001)。

摘　　要：制备了新型壳聚糖-纤维素-凹凸棒石复合气凝胶材料,对含铜废水去除效果理想,最优条件下去除率可高达85%。将吸附的铜离子固定在气凝胶材料上得到铜负载的凹凸棒石基复合催化材料,实现材料的循环利用及循序利用。该催化材料处理亚甲基蓝效果理想,在最优条件下去除率高达99.6%,此外该材料在混合废水的处理中仍然保持较高处理能力。对吸附前后的气凝胶材料进行电镜扫描、傅里叶红外、X射线衍射和热重等测试分析,结果表明材料性质稳定,孔隙率高,吸附焙烧后铜可均匀负载在气凝胶材料上。该研究可为重金属和难降解有机物复合型污染废水的处理提供新思路。A new type of chitosan-cellulose-attapulgite composite aerogel material was prepared,which has an ideal removal effect on copper containing wastewater,under the optimal condition,the removal ratio can reach up to 85%.The adsorbed copper ions were immobilized on the aerogel materials to obtain copper loaded attapulgite based composite catalytic materials,realizing the recycling and sequential utilization of materials.The catalytic material has an ideal effect on treating methylene blue,with a removal ratio of 99.6%under the optimal conditions,in addition,this material still maintains a high treatment capacity in the treatment of compound wastewater.The aerogel materials before and after adsorption were tested and analyzed by SEM,FTIR,XRD and TG.The results showed that the materials had stable properties,high porosity,and copper could be uniformly loaded on the aerogel materials after immobilization.This study can provide new ideas for the treatment of composite polluted wastewater containing heavy metals and recalcitrant organic compounds.

关 键 词：凹凸棒石 纤维素 壳聚糖 吸附 铜离子 降解 亚甲基蓝 

分 类 号：TQ424[化学工程] TQ426