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Preparation and Pervaporation of Silica Composite Membrane
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Hongdan WU1, 2, Hongrui LIU1, 2, Xiaoyu LIU1, 2, Zhihui ZHOU1, 2, Jianhua YANG3, Shengli LI1, 2
Journal of the Chinese Ceramic Society | 2020, 48(4) : 592 - 598
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Journal of the Chinese Ceramic Society | 2020, 48(4): 592-598
Preparation and Pervaporation of Silica Composite Membrane
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Hongdan WU1, 2, Hongrui LIU1, 2, Xiaoyu LIU1, 2, Zhihui ZHOU1, 2, Jianhua YANG3, Shengli LI1, 2
Affiliations
  • 1.School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
  • 2.Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan 430081, China
  • 3.Institute of Adsorption and Inorganic Membrane, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, China

    • WU Hongdan (1982-), female, Ph.D., Lecturer. E-mail:

About Author:

WU Hongdan (1982-), female, Ph.D., Lecturer. E-mail:

Published: 2020-04-20 doi: 10.14062/j.issn.0454-5648.20190606
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Organosilicon sols undoped and doped with Zr4+ ions were prepared by a sol-gel method. These sols were then coated on a modified α-Al2O3 support by a dip-coating method. Silica composite membrane was prepared via calcining. The surface morphology of each film during the preparation was characterized by scanning electron microscopy. The prepared silica composite membranes were used for the dehydration of isopropanol by pervaporation in order to examine the effects of operating temperature and initial water content on the dehydration performance of the membrane, and the effect of acidic environment (pH=2) on its performance was also investigated. The experimental results show that silica composite membrane pervaporates 85% (in mass) isopropyl alcohol solution at 75 ℃, its flux is 1 kg/(m2h) and the water content of permeate is 99.4% (in mass). The membrane can maintain a good separation performance at different temperatures and initial water contents, so that it has a good hydrothermal stability. The membrane can maintain a stable separation performance in acidic environment (i.e., pH=2) for a long time, thus having a great acid resistance.

sol-gel method  /  silica  /  composite membrane  /  pervaporation
吴红丹, 刘宏瑞, 刘晓宇, 周志辉, 杨建华, 李胜利. 二氧化硅复合膜的制备及其渗透汽化性能. 硅酸盐学报, 2020 , 48 (4) : 592 -598 . DOI: 10.14062/j.issn.0454-5648.20190606
Hongdan WU, Hongrui LIU, Xiaoyu LIU, Zhihui ZHOU, Jianhua YANG, Shengli LI. Preparation and Pervaporation of Silica Composite Membrane[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (4) : 592 -598 . DOI: 10.14062/j.issn.0454-5648.20190606
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Year 2020 volume 48 Issue 4
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Article Info
doi: 10.14062/j.issn.0454-5648.20190606
  • Receive Date：2019-09-03
  • Online Date：2026-10-29
  • Published：2020-04-20
Article Data
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History
  • Received：2019-09-03
  • Revised：2019-12-05
Funding
Affiliations
    1.School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
    2.Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan 430081, China
    3.Institute of Adsorption and Inorganic Membrane, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, China

Corresponding:

ZHOU Zhihui (1980-), male, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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