Development of high water permeability and chemically stable thin film nanocomposite (TFN) forward osmosis (FO) membrane with poly(sodium 4-styrenesulfonate) (PSS)-coated zeolitic imidazolate framework-8 (ZIF-8) for produced water treatment
Development of high water permeability and chemically stable thin film nanocomposite (TFN) forward osmosis (FO) membrane with poly(sodium 4-styrenesulfonate) (PSS)-coated zeolitic imidazolate framework-8 (ZIF-8) for produced water treatment
复制标题
聚4-苯乙烯磺酸钠（PSS）包被沸石咪唑酯骨架-8 （ZIF-8）正渗透膜（TFN）的研制
DOI：
10.1016/j.jwpe.2019.101031
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发表时间：
2020-02-01
影响因子：
7
通讯作者：
Mustapa, H.
中科院分区：
文献类型：
--
作者：
Beh, J. J.;Ooi, B. S.;Mustapa, H.
大量采出水的产生需要具有高水渗透性的化学稳定的膜来去除油乳液。本工作中，开发了一种基于咪唑骨架-8（ZIF-8）的薄膜纳米复合（TFN）膜，该膜具有改善的纯水渗透性和化学稳定性。发现聚（4-苯乙烯磺酸钠）（PSS）涂层可以稳定ZIF-8颗粒以防止其在水中溶解。这随后允许适当地形成具有与薄膜复合物（TFC）膜相当的分离性能的TFN膜。随着三乙胺（TEA）作为酸受体在界面聚合中的进一步使用，TFN膜的纯水渗透性比没有TEA合成的TFC和TFN膜显着改善，同时NaCl截留率的损失最小。TFN膜的增强的水传输进一步通过在合成高盐度油乳液和真实的采出水两者的正向渗透（FO）过滤中与TFC膜相比TFN膜的更高通量来证明。此外，由于化学稳定的ZIF-8颗粒，TFN膜被证明具有比TFC膜更好的对采出水的抗溶胀性。
The generation of large volume of produced water necessitates a chemically stable membrane with high water permeability for the removal of oil emulsion. In this work, a zeolitic imidazolate framework-8 (ZIF-8) based thin film nanocomposite (TFN) membrane with improved pure water permeability and chemical stability was developed. It was found that poly(sodium 4-styrenesulfonate) (PSS) coating could stabilize the ZIF-8 particles against dissolution in water. This subsequently allowed the proper formation of TFN membrane with comparable separation properties as the thin film composite (TFC) membrane. With the further use of triethylamine (TEA) as an acid acceptor in interfacial polymerization, the pure water permeability of TFN membrane improved significantly over both TFC and TFN membranes synthesized without TEA with minimal loss in NaCl rejection. The enhanced water transport of TFN membrane was further manifested by the higher flux of TFN membrane compared to TFC membrane in forward osmosis (FO) filtration of both synthetic high salinity oil emulsion and real produced water. In addition, due to the chemically stable ZIF-8 particles, the TFN membrane was demonstrated to have a better swelling resistance against produced water than the TFC membrane.