多功能PVDF/PVP/TiO_2复合材料的制备及性能研究Preparation and Performance Study of Multifunctional PVDF/PVP/TiO_2 Composite
赖桂森;崔鹏飞;周翔胜;关胜利;梁家豪;李剑芳;焦石;何海欢;吴安兵;
摘要(Abstract)：
通过在聚偏二氟乙烯(PVDF)塑料薄膜上负载聚乙烯吡咯烷酮(PVP)改性TiO_2光催化纳米粒子制备了集油水分离和光催化降解功能为一体的多功能复合材料。由于改性TiO_2带来的粗糙结构,使得PVDF/PVP/TiO_2-2复合薄膜具有较高的油水分离性能,分离通量和拒油率分别为164 L/(m2·h)和99.8%。除此以外,PVDF/PVP/TiO_2-2复合薄膜在30 min内对甲基橙/甲苯乳液中甲基橙降解率达到了98.22%,并且对多种不同种类的可溶性污染物均具有较好的降解效果。循环稳定性方面,PVDF/PVP/TiO_2-2复合薄膜的分离性能以及光降解性能在经过10次循环后均为发生较大的下降,具有较好的实用性。
关键词(KeyWords)： 聚偏二氟乙烯;聚乙烯吡咯烷酮;二氧化钛;乳液分离;光催化;污水处理
基金项目(Foundation):
作者(Authors): 赖桂森;崔鹏飞;周翔胜;关胜利;梁家豪;李剑芳;焦石;何海欢;吴安兵;
DOI: 10.15925/j.cnki.issn1005-3360.2021.01.008
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