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Exploring the novel PES/malachite mixed matrix membrane to remove organic matter for water purification
Chemical Engineering Research and Design ( IF 3.9 ) Pub Date : 2020-05-30 , DOI: 10.1016/j.cherd.2020.05.022
Quang Viet Ly , Christine Matindi , Alex T. Kuvarega , Huu Hao Ngo , Quyet Van Le , Vu Hai Nam , Jianxin Li

This study presents a greener approach to fabricate mixed matrix membranes (MMMs) by introducing malachite nanoparticles (MLC NPs) synthesized from copper sulfate, a toxic waste from many industrial applications, into polyethersulfone (PES) membrane to remove organic matter for water reclamation. The PES/MLC MMMs were characterized by XRD, FTIR, SEM(EDX), Raman Spectroscopy, Photoluminescence Spectrometry, and Contact angle measurements. Results showed that the incorporation of MLC NPs into PES altered the membrane morphology, and made the membrane more hydrophilic. At the optimal amount of 0.1 wt.% MLC NPs, PES/MLC showed the best water flux of 931.1 L/(m2 h) (LMH) with the highest breaking stability of 5.06 ± 0.33 MPa. The membrane also exhibited enhanced adsorption of organic foulants with a corresponding flux recovery rate of 0.55 ± 0.03%. The inevitable agglomeration of MLC NPs witnessed at MLC NP dosage of 1 wt.% compromised either the throughput or the mechanical integrity. The elevated NP loading rate from 0 to 1 wt.% enhanced the removal rate of organic carbon (C) from 20.8 ± 1.7% to 26.3 ± 2.3%, respectively. Optical methods demonstrated the preferential rejection of aromatic constituents by the fabricated membranes suggests their potential applicability of optical methods, particularly the fluorescence spectrometry for better prediction of treated water quality by membrane filtration.



中文翻译:

探索新型PES /孔雀石混合基质膜去除有机物以净化水

这项研究提出了一种更环保的方法来制造混合基质膜(MMM),方法是将由硫酸铜(许多工业应用中的有毒废料)合成的孔雀石纳米颗粒(MLC NP)引入聚醚砜(PES)膜中,以去除有机物进行水再生。通过XRD,FTIR,SEM(EDX),拉曼光谱,光致发光光谱和接触角测量来表征PES / MLC MMM。结果表明,将MLC NPs掺入PES可以改变膜的形态,并使膜更亲水。在0.1 wt。%MLC NP的最佳用量下,PES / MLC的最佳水通量为931.1 L /(m 2 h)(LMH)的最高断裂稳定性为5.06±0.33 MPa。该膜还表现出增强的有机污垢吸附性,相应的通量回收率为0.55±0.03%。在MLC NP剂量为1重量%时,不可避免的MLC NP的团聚损害了产量或机械完整性。从0到1 wt。%的NP负载率提高,分别将有机碳(C)的去除率从20.8±1.7%提高到26.3±2.3%。光学方法证明了所制造的膜对芳香族成分的优先排斥表明了它们在光学方法中的潜在适用性,尤其是荧光光谱法,可以更好地预测通过膜过滤处理的水质。

更新日期:2020-05-30
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