CNTWs-PVDF复合导电膜的制备及抗生物污染性能研究  

Preparation of CNTWs-PVDF Conductive Composite Membrane and its Anti-Biofouling Performance Analysis

作　　者：韩硕 邵林[2] 张朝晖[1] 康志雄 马聪[1] 王亮[1] HAN Shuo;SHAO Lin;ZHANG Zhaohui;KANG Zhixiong;MA Cong;WANG Liang(School of Environmental Science and Engineering,Tiangong University,300380;Tianjin Electric Power Research Institute,300000,Tianjin,China)

机构地区：[1]天津工业大学环境科学与工程学院,300380 [2]天津市电力科学研究院,天津300000

出　　处：《水处理技术》2023年第4期32-37,共6页Technology of Water Treatment

基　　金：国家自然科学基金(51978465,51678408);天津市自然科学基金(19JCZDJC39800)。

摘　　要：选择高导电性、高分散度和高长径比的碳纳米晶须(CNTWs),通过两步相转换法制备了CNTWs-PVDF导电复合膜。结果表明,制备的导电膜具有特殊的双层孔道结构和较强的亲水性。该导电复合膜的导电性达到0.15S/m,比共混法制备的导电膜导电性能提高33%。施加-1.5 V电压时CNTWs-PVDF导电膜表现出良好的抗生物污染性能,且多次反洗后导电复合膜依然保持良好的导电性,说明导电层的机械稳定性良好。In this experiment,carbon nanowhiskers(CNTWs)with high conductivity,high dispersion,and high aspect ratio were selected to prepare CNTWs-PVDF conductive composite membranes by the two-step phase conversion method.The results suggested that the prepared conductive membrane has a special double-layer pore structure and strong hydrophilicity.The conductivity of the conductive composite membrane reached 0.15 S/m,which was 33%higher than that of the conductive membrane prepared by the blended method.When-1.5 V voltage was applied,the CNTWs-PVDF conductive membrane exhibited good anti-biofouling performance.And the conductive composite membrane still maintained good conductivity after frequent backwashing,indicating good mechanical stability of the conductive layer.

关 键 词：导电膜 生物污染 碳纳米晶须 超滤 水处理 

分 类 号：TQ028.8[化学工程]