Pervaporation dehydration of acetic acid using polyelectrolytes complex (PEC)/11-phosphotungstic acid hydrate (PW11) hybrid membrane (PEC/PW11)
Chen, Jian Hua
Zheng, Jian Zhong
Liu, Qing Lin
Guo, Hong Xu
Li, Shun Xing
- 化学化工－已发表论文 
Novel polyelectrolytes complex (PEC)/11-phosphotungstic acid hydrate (PW11) hybrid membranes (PEC/PW11) were prepared by blending sodium alginate (SA) and gelatin (GE), followed by incorporating with PW11, and then crosslinking by gamma-Glycidoxypropyltrimethoxysilane (GPTEOS). Structures of the membranes were characterized by X-ray diffraction (XRD), FT-IR, thermogravimetry (TG), scanning electron microscopy (SEM), atomic force microscopy (AFM) and contact angle goniometer methods. The characterization results demonstrated that the amorphous regions in the membrane and hydrophilicity of the membrane enhance with increasing PW11 I content; thermal stability of the membrane strengthened with the introducing of PW11; PW11 was homogeneously dispersed in the PEC matrix when PW11 content was no higher than 9 wt%. Swelling experiments showed that the degree of swelling (DS) of the PEC/PW11 hybrid membranes increased with increasing PW11 content or water content in feed. Sorption experiments demonstrated that when PW11 was no more than 9 wt%, both the sorption selectivity and diffusion selectivity increase with increasing PW11 content, then decrease with further increasing PW11 content. PEC/PW11 hybrid membrane containing 9 wt% PW11 exhibited the best pervaporation performance, whose averaged permeation flux was 0.440 kg/m(2)/h and separation factor was 144 for 90 wt% aqueous solution of acetic acid at 50 degrees C. (C) 2012 Elsevier B.V. All rights reserved.
DescriptionNational Natural Science Foundation of China ; Fujian Education Department Foundation (type A) [JA 10206]
CitationJOURNAL OF MEMBRANE SCIENCE, 2013,429:206-213
Showing items related by title, author, creator and subject.
Pervaporation separation of methanol/methyl tert-butyl ether mixtures using polyarylethersulfone with cardo membranes Han, Guang Lu; Zhang, Qiu Gen; Zhu, Ai Mei; Liu, Qing Lin; 张秋根; 朱爱梅; 刘庆林 (ELSEVIER SCIENCE BV, 2013-Apr 2)Membranes based on polyarylethersulfone with cardo (PES-C) were prepared for pervaporation (PV) separation of methanol (MeOH)/methyl tert-butyl ether (MTBE) mixtures. The membranes were characterized using wide angle X-ray ...
Separation of methanol/methyl tert-butyl ether using sulfonated polyarylethersulfone with cardo (SPES-C) membranes Han, Guang Lu; Zhang, Qiu Gen; Liu, Qing Lin; 张秋根; 刘庆林 (ELSEVIER SCIENCE BV, 2013-Mar 1)Membranes based on sulfonated polyarylethersulfone with cardo (SPES-C) were prepared and characterized using Fourier transform infrared (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron ...
Chitosan/polyvinylpyrrolidone-silica hybrid membranes for pervaporation separation of methanol/ethylene glycol azeotrope Zhang, Qiu Gen; Hu, Wen Wei; Liu, Qing Lin; Zhu, Ai Mei; 张秋根; 刘庆林; 朱爱梅 (WILEY-BLACKWELL, 2013-Sep 1)Chitosan (CS)/polyvinylpyrrolidone (PVP)-silica hybrid membranes are prepared to separate the methanol/ethylene glycol (EG) azeotrope. These hybrid membranes are formed in semi-interpenetrating network structure at the ...