【摘要】 通过在碳纳米管(CNTs)中空纤维膜上电化学聚合导电聚苯撑(PP)制备了聚苯撑/碳纳米管(PP/CNTs)复合导电膜，并研究了其在电辅助下处理地表水过程中的分离性能和抗污染性能.结果表明，所制备的PP/CNTs膜具有良好的导电性，其电导率(149 S/m)是CNTs膜(45 S/m)的3.3倍.在PP/CNTs膜上施加-2.0 V电压时，过滤地表水10 h后，膜通量损失为30.9%,远低于无电辅助时的通量损失(69.0%);在-2.0 V电压下进行膜清洗之后，通量恢复率为96.7%,高于无电辅助的膜(61.3%);电辅助PP/CNTs膜出水总有机碳(TOC)和化学需氧量(COD)去除率分别从20.4%和14.3%提高到27.2%和21.5%.研究结果表明，电辅助PP/CNTs膜可以有效缓解膜污染，延长反洗周期并提升出水水质.更多还原

【Abstract】 Polyphenylene/carbon nanotubes(PP/CNTs) composite conductive membranes are prepared by electrochemical polymerization of conductive PP on CNTs hollow fiber membranes. The separation and anti-fouling performances of the PP/CNTs membrane with electro-assistance for surface water treatment are investigated. The results show that the electrical conductivity of the prepared PP/CNTs membrane(149 S/m) is 3.3 times as high as that of the CNTs membrane(45 S/m). After the filtration of surface water for 10 h, the PP/CNTs membrane exhibits a flux loss of 30.9% at an applied voltage of-2.0 V, which is much lower than that of the PP/CNTs membrane without electro-assistance(69.0%). When applying a voltage of-2.0 V, the flux recovery rate of the PP/CNTs membrane after cleaning is up to 96.7%, which is higher than that of the membrane without electro-assistance(61.3%). Moreover, the total organic carbon(TOC) and chemical oxygen demand(COD) removal efficiencies of the PP/CNTs membrane with electro-assistance increase from 20.4% and 14.3% to 27.2% and 21.5%, respectively. The study results demonstrate that the PP/CNTs membrane with electro-assistance can effectively mitigate membrane fouling, extend backwash cycles and improve effluent quality.更多还原