胡锦泰,杜春慧,陈芬,张超,吴春金

• 1:浙江工商大学 环境科学与工程学院，浙江 杭州 310018

摘要(Abstract)：

为了提高正渗透(FO)膜对染料的分离与抗污染性能，采用共混相转化法将聚对氯甲基苯乙烯(PCMS)引入聚偏氟乙烯(PVDF)多孔支撑底膜中，经UiO-66-NH₂与PCMS上的氯甲基的亲核取代反应，使UiO-66-NH₂均匀地固定在膜表面，进一步通过改进的界面聚合工艺即在其水相溶液中添加苯基三甲基氯化铵(TMPAC)，制备同时具有高渗透性能和抗污染性的FO复合膜。对支撑底膜和FO膜的结构和性能进行分析表征，并通过FO装置测试FO膜渗透分离和抗污染性能。结果表明，UiO-66-NH₂的引入有效提升了FO膜的亲水性、荷电性及渗透性能，界面聚合工艺中季铵盐的加入极大提升了FO膜的分离和抗污染性能。改性后的FO膜(M2-T)纯水通量可达到22.4 L×m^-2×h^-1，对染料废水中罗丹明6G和橙黄G的截留率可达97.82% 和99.84%，经过6 h的罗丹明6G运行后，归一化通量衰减率仅为10.18%，纯水通量恢复率仍有95.66%。

关键词(KeyWords)： UiO-66-NH₂;苯基三甲基氯化铵;聚偏氟乙烯;正渗透膜;抗污染性能

Abstract:

Keywords:

基金项目(Foundation): 浙江省基础公益研究计划(LGF21E080008)

作者(Author): 胡锦泰,杜春慧,陈芬,张超,吴春金

DOI: 10.3969/j.issn.1003-9015.2023.03.020

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