Microwave-induced ultrafast crosslinking of Poly (vinyl alcohol) blended with nanoparticles as wave absorber for pervaporation desalination

IF 4.9 Q1 ENGINEERING, CHEMICAL Journal of Membrane Science Letters Pub Date : 2022-05-01 DOI:10.1016/j.memlet.2022.100021
Yunfei Xing, Yunlong Xue, Dujian Qin, Pengbo Zhao, Pei Li
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引用次数: 6

Abstract

Although pervaporation (PV) membranes based on crosslinked polyvinyl alcohol (PVA) exhibit high desalination performance, the thermal crosslinking process often takes several hours. Here, we report a microwave assisted method to reduce the crosslinking duration. Moreover, to the PVA crosslinking system, a MOF particle, UIO-66, was added to increase the microwave absorbing efficiency and improve the desalination property. As a result, the PVA crosslinking time decreased to 2 min and the water flux increased by 67% compared with the plain crosslinked PVA membrane.

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微波诱导超快交联聚乙烯醇与纳米粒子混合作为渗透蒸发脱盐的吸波剂
虽然基于交联聚乙烯醇(PVA)的渗透蒸发(PV)膜具有很高的脱盐性能,但热交联过程通常需要几个小时。在这里,我们报道了一种微波辅助方法来缩短交联时间。此外,在PVA交联体系中加入MOF颗粒UIO-66,提高了微波吸收效率,改善了脱盐性能。与普通交联PVA膜相比,交联时间缩短至2 min,水通量提高67%。
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