环境工程学报2017，Vol.11Issue(7)：4091-4096,6.DOI:10.12030/j.cjee.201605244
纳米氧化锌改性聚偏氟乙烯超滤膜的性能
Characteristic of polyvinylidene fluoride ultrafiltration membrane modified by nano-zinc oxide
摘要
Abstract
The performance of PVDF ultrafiltration membranes prepared with different ZnO weight ratios via blending was investigated.Experimental data showed that optimal addition of ZnO (1.5％ to 2.0％) increased membrane pore size and water flux by 53.91％ and 77.01％,respectively.Meanwhile,membrane contact angle decreased from 89.3° to 77.9° with increasing nano-ZnO content in membrane-forming materials.Compared to the original PVDF membrane,the flux reduction coefficient and the membrane resistance of the PVD-ZnO membrane decreased by 48.84％ and 76.62％,respectively.BSA retention of PVDF membranes modified with nanoZnO was stable at 90％ with further addition of ZnO.The antibacterial capacity of the PVDF-ZnO membrane in the presence of Escherichia coli was also studied,with results indicating that incorporation of nano-ZnO into the PVDF membrane phase led to an improved antibacterial rate.Most notably,at 3.0％ ZnO,this was as high as 62.9％.关键词
超滤膜/聚偏氟乙烯/纳米氧化锌/膜性能/抑菌Key words
ultrafiltration membrane/PVDF/nano-ZnO/membrane property/antibacterial capacity分类
资源环境引用本文复制引用
龚烨霞,左行涛,张事,周瞾,胡波..纳米氧化锌改性聚偏氟乙烯超滤膜的性能[J].环境工程学报,2017,11(7):4091-4096,6.基金项目
中央高校基本科研业务费专项(2662017JC019) （2662017JC019）
湖北省自然科学基金资助项目(2016CFB495) （2016CFB495）
