Yanzhuang Jiang, Qian Yang, Lin Zhang, Liyan Yu, Na Song, Lina Sui, Qingli Wei, Lifeng Dong
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Development of high-flux reverse osmosis membranes with MIL-101(Cr)/Fe3O4 interlayer
MIL-101(Cr) has a special pore cage structure that provides broad channels for the transport of water molecules in the reverse osmosis (RO) water separation and purification. Combining MIL-101(Cr) with Fe3O4 nanoparticles forms a water transport intermediate layer between the polyamide separation membrane and the polysulfone support base under an external magnetic field. MIL-101(Cr) is stable in both water and air while resistant to high temperature. With the introduction of 0.003 wt.% MIL-101(Cr)/Fe3O4, the water flux increased by 93.31% to 6.65 L·m−2·h−1·bar−1 without sacrificing the NaCl rejection of 95.88%. The MIL-101(Cr)/Fe3O4 multilayer membrane also demonstrated certain anti-pollution properties and excellent stability in a 72-h test. Therefore, the construction of a MIL-101(Cr)/Fe3O4 interlayer can effectively improve the permeability of RO composite membranes.
期刊介绍：
Frontiers of Materials Science is a peer-reviewed international journal that publishes high quality reviews/mini-reviews, full-length research papers, and short Communications recording the latest pioneering studies on all aspects of materials science. It aims at providing a forum to promote communication and exchange between scientists in the worldwide materials science community.
The subjects are seen from international and interdisciplinary perspectives covering areas including (but not limited to):
Biomaterials including biomimetics and biomineralization;
Nano materials;
Polymers and composites;
New metallic materials;
Advanced ceramics;
Materials modeling and computation;
Frontier materials synthesis and characterization;
Novel methods for materials manufacturing;
Materials performance;
Materials applications in energy, information and biotechnology.
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