PVDF催化分离膜的制备及处理有机染料废水的研究  

Preparation of PVDF Catalytic Separation Membranes and Application for the Treatment of Dyes Wastewater

作　　者：李吉然 张迅于 马彭志 陈玉杰 乃皮赛·亚森 黄成城 刘潇[1] LI Jiran;ZHANG Xunyu;MA Pengzhi;CHEN Yujie;Naipisai·Yasen;HUANG Chengcheng;LIU Xiao(College of Materials Science and Engineering,North Minzu University,Yinchuan 750021,China)

机构地区：[1]北方民族大学材料科学与工程学院,宁夏银川750021

出　　处：《山东化工》2024年第22期234-237,共4页Shandong Chemical Industry

基　　金：北方民族大学大学生创新创业计划项目;项目编号:S202311407039。

摘　　要：基于分离膜的研究,以PVDF膜为基膜,首先将MnO_(2)/Bi_(4O)_(5)Br_(2)复合催化剂分散到壳聚糖(CS)溶液,然后采用低压抽滤法制备了一种具有高降解效率的MnO_(2)/Bi_(4O)_(5)Br_(2)/PVDF催化分离膜。通过SEM、水接触角分析等表征方法对膜进行表面形貌和结构性能的分析,并且对膜进行染料废水测试,检测膜对染料废水的去除率及膜的重复使用性能。结果表明,膜的网状结构比较密集,对30 mg/L的刚果红溶液的去除率可高达99.8%,且在酸性和中性条件下的过滤效果最佳并且具有较好的重复使用率。Based on the study of separation membranes,a MnO_(2)/Bi_(4O)_(5)Br_(2)/PVDF catalytic separation membrane with high degradation efficiency was prepared by using a PVDF membrane as the base membrane,introducing MnO_(2)/Bi_(4O)_(5)Br_(2)in to the chitosan solution,then the MnO_(2)/Bi_(4O)_(5)Br_(2)/PVDF catalytic membrane was obtained by a low pressure extraction filtration.The surface morphology and structural properties of the membrane were analyzed by SEM,water contact angle analysis and other characterization methods,and the membrane was tested for dye wastewater to detect the removal rate of dye wastewater and the reuse performance of the membrane.The results showed that the membranes had a dense mesh structure,and the removal rate of 30 mg/L Congo red solution could be as high as 99.8%,with the best filtration effect under acidic and neutral conditions and a good reuse rate.

关 键 词：MnO_(2)/Bi_(4)O_(5)Br_(2)纳米催化剂 壳聚糖 非均相FENTON 

分 类 号：X703[环境科学与工程—环境工程]