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Preparation and Pervaporation Performance of SiO2@ZIF-8 Composite Membrane
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Hongdan WU, Zhaoying SUN, Zhihui ZHOU, Xiaodi LIU
Journal of the Chinese Ceramic Society | 2022, 50(7) : 1978 - 1987
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Journal of the Chinese Ceramic Society | 2022, 50(7): 1978-1987
• Research Articles •
Preparation and Pervaporation Performance of SiO2@ZIF-8 Composite Membrane
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Hongdan WU, Zhaoying SUN, Zhihui ZHOU, Xiaodi LIU
Affiliations
  • School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgical Mineral Resources, Wuhan 430081, China
  • WU Hongdan (1982-), female, Lecturer. E-mail:

About Author:

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

Published: 2022-07-20 doi: 10.14062/j.issn.0454-5648.20211056
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Silicon dioxide (SiO2) membrane has attracted much attention in the field of separation and purification due to its high-temperature resistance and adjustable pore size. However, the amorphous structure on the surface leads to the mutual restriction of permeability and selectivity, which affects the results of separation. A SiO2@ZIF-8 composite membrane was prepared with SiO2 membrane as abase membrane and modified with metal organic framework material (ZIF-8). The effects of synthesis condition of ZIF-8, addition amount of ZIF-8 and temperature of raw material solution on the dehydration inaqueous ethanol solution mixture under pervaporation conditions were investigated. The results show that the regular channel structure in ZIF-8 can provide additional channels for water molecule transport, the water content on the permeate side of the composite membrane is 99.5 %, the permeate flux increasesto 9.6 kg/(m2·h) and the separation factor is 1 973. A relationship between membrane permeation flux and temperature follows the Arrhenius equation. The apparent activation energy of water molecules in the composite membrane is higher, and the water flux increases faster with the increase of temperature, indicating a better separation effect. SiO2@ZIF-8 composite membrane can effectively improve the defects of amorphous network structure of silica film, which has a broad application prospect in the dehydration of organic solvent by pervaporation.

silicon dioxide  /  metal organic framework material  /  composite membrane  /  pervaporation  /  ethanol dehydration
吴红丹, 孙兆颖, 周志辉, 刘晓迪. SiO2@ZIF-8复合膜的制备及渗透汽化性能. 硅酸盐学报, 2022 , 50 (7) : 1978 -1987 . DOI: 10.14062/j.issn.0454-5648.20211056
Hongdan WU, Zhaoying SUN, Zhihui ZHOU, Xiaodi LIU. Preparation and Pervaporation Performance of SiO2@ZIF-8 Composite Membrane[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (7) : 1978 -1987 . DOI: 10.14062/j.issn.0454-5648.20211056
Year 2022 volume 50 Issue 7
33
3
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Article Info
doi: 10.14062/j.issn.0454-5648.20211056
  • Receive Date:2021-12-06
  • Online Date:2026-10-20
  • Published:2022-07-20
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  • Received:2021-12-06
  • Revised:2022-01-04
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Affiliations
    School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgical Mineral Resources, Wuhan 430081, 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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