Preparation, characterisation, and desalination performance study of cellulose acetate membranes with MIL-53(Fe) additive

被引：53
作者：
Wang, Xiuju [1 ,2 ]
Ba, Xuelian [1 ,2 ]
Cui, Na [1 ,2 ]
Ma, Zhun [3 ]
Wang, Liguo [1 ,2 ]
Wang, Zhongpeng [1 ,2 ]
Gao, Xueli [4 ]
机构：
[1] Univ Jinan, Key Lab Water Resources & Environm Engn Univ Shan, Jinan 250022, Shandong, Peoples R China
[2] Univ Jinan, Sch Water Conservancy & Environm, Jinan 250022, Shandong, Peoples R China
[3] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Shandong, Peoples R China
[4] Ocean Univ China, Coll Chem & Chem Engn, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Shandong, Peoples R China
来源：
JOURNAL OF MEMBRANE SCIENCE | 2019年 / 590卷
基金：
中国国家自然科学基金;
关键词：
Cellulose acetate; Forward osmosis membranes; MIL-53(Fe); Hybrid membranes; METAL-ORGANIC FRAMEWORK; THIN-FILM COMPOSITE; OSMOSIS MEMBRANE; REVERSE-OSMOSIS; WASTE-WATER; FORMATION MECHANISM; POWER-GENERATION; CARBON-DIOXIDE; FABRICATION; ULTRAFILTRATION;
D O I：
10.1016/j.memsci.2019.04.061
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This study describes the preparation and characterisation of MIL-53(Fe) and its effect on the performance of forward osmosis (FO) membranes. The cellulose acetate (CA)/MIL-53(Fe) hybrid membranes were fabricated using the method of phase inversion by dispersing MIL-53(Fe) in a CA casting solution. To improve the selectivity and permeability performance of FO membranes, the effects of MIL-53(Fe) content, casting solution temperature, coagulation bath temperature, and annealing temperature were studied. Results from scanning electron microscopy, membrane porosity, atomic force microscopy, and water contact angle tests of all the membranes show that the structural properties of the CA/MIL-53(Fe) hybrid membranes were optimised. The results of the FO performance tests, including the values of water flux and reverse salt flux, indicate improvement in the selectivity and permeability properties of the CA/MIL-53(Fe) hybrid membranes. Under the conditions of deionised water as the feed solution and 1 M NaCl solution as the draw solution, the water flux and reverse salt flux of the CA/MIL-53(Fe) hybrid membranes reached 34.9 L/(m(2).h) and 2.02 g/(m(2).11), respectively, in comparison with CA membranes. This study demonstrates that MIL-53(Fe) can improve the desalination performance and structural properties of FO membranes.
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页数：9
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