膜科学与技术

O-MoS2改性PMIA疏松纳滤膜的制备及其性能

作者：姜钦亮，王一雯，付尹宣，麦兆环，桂双林，韩飞

单位： 1.江西省科学院能源研究所，江西南昌 30096; 2.南昌大学鄱阳湖环境与资源利用教育部重点实验室资源环境与化工学院，南昌330031

关键词：聚间苯二甲酰间苯二胺；氧化二硫化钼；平板；疏松；纳滤膜

出版年,卷(期):页码： 2021,41(3):126-134

摘要：

为考察氧化二硫化钼（O-MoS2）对聚间苯二甲酰间苯二胺（PMIA）膜结构和分离性能的影响，本研究采用相转化法制备了PMIA平板疏松纳滤膜，进行了O-MoS2添加量对膜的形貌结构，膜表面电势，分离性能及抗污染性能的影响分析。结果表明：与原始的PMIA膜相比，复合PMIA/O-MoS2膜表面光滑无缺陷；随着复合膜中O-MoS2含量由0w.t%增加至0.5wt.%，膜表面接触角由原始膜的61.8°降低至35.0°；复合膜表面的荷负电性能增强。纳滤实验结果表明，在O-MoS2质量分数为0.3 wt.%条件下制备的复合膜，在2bar操作压力下，纯水通量361.5 L/(m2·h)是原始膜通量的1.5倍。同时O-MoS2的添加增强了复合膜的抗污染性能，在染料废水处理等领域展现了潜在的应用前景。

To investigate the effect of oxidized molybdenum disulfide (O-MoS2) on the membrane structure and separation performance of polyresorcinylene diamine (PMIA) membrane. In this study, the PMIA flat sheet loose nanofiltration membrane was prepared by using phase inversion method. Effect of O-MoS2 content on the morphology, surface zeta-potential, separation and pollution resistance characteristics of the resulted membranes were investigated in detail. The results showed that compared with the PMIA membrane, the surface of the composite PMIA/ O-MoS2 membrane was smooth without defects.; As the content of O-MoS2 in the composite membrane increased from 0wt. % to 0.5wt.%, the surface contact angle decreased from 61.8° of the PMIA membrane to 35.0°of the PMIA/ O-MoS2-4 membrane; The zeta potential on the composite membrane surface was enhanced. The nanofiltration experimental results showed that PMIA/O-MoS2 membrane (mass fraction of O-MoS2 is 0.3wt.%) showed a pure water flux of 361.5 L/(m2·h), 1.5 times that of the original membrane flux, under the operating pressure of 2bar. While the addition of O-MoS2 enhanced the anti-pollution performance of the composite membrane, and showed potential application prospects in dye wastewater treatment and other fields.

姜钦亮（1988-），男，江西南昌人，博士，助理研究员，主要从事膜材料的制备与膜分离，

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