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Ionothermal Synthesis of CHA-Type Zeolite Membrane for Desalination
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Huizhi ZHANG, Lai GAN, Ni LIU, Xinyue HUANG, Na HU, Xiangshu CHEN
Journal of the Chinese Ceramic Society | 2022, 50(5) : 1375 - 1384
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Journal of the Chinese Ceramic Society | 2022, 50(5): 1375-1384
• Research Articles •
Ionothermal Synthesis of CHA-Type Zeolite Membrane for Desalination
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Huizhi ZHANG, Lai GAN, Ni LIU, Xinyue HUANG, Na HU, Xiangshu CHEN
Affiliations
  • Institute of Advanced Materials, State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China

    • ZHANG Huizhi (1994-), female, Master candidate. E-mail:

About Author:

ZHANG Huizhi (1994-), female, Master candidate. E-mail:

Published: 2022-05-20 doi: 10.14062/j.issn.0454-5648.20210599
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Zeolite chabazite (CHA) membranes with a higher Si/Al mole ratio in the zeolite framework were prepared to improve their stability and separation performance. Pure zeolite CHA membranes were synthesized with imidazolium-based ionic liquids (ILs) as a structure-directing agent, which could improve the Si/Al ratio in the framework. ILs could be used repetitively at least 3 times for the synthesis of high-crystallinity zeolites. Under the optimized synthetic conditions, a continued zeolite CHA membrane obtained from an initial gel containing 1-buthyl-3-methylimidazolium bromide ([Bmim]Br) on the mullite tubular supports has a high water flux of 6.3 kg/(m2·h) with a high ion rejection (100%) for pervaporation (PV) separation of 3.5% (in mass fraction) NaCl aqueous solution at 75 ℃. The effects of temperature and feed concentration on the desalination performance of ILs-CHA membranes were also investigated. The water flux increases to 10.3 kg/(m2·h), and their salt rejections are 100% when the operating PV temperature increases at 90 ℃. Zeolite CHA membranes prepared have the superior separation performance even for desalination of 10% NaCl aqueous solution. Furthermore, the ILs-CHA zeolite membrane has a stable separation performance with a stable water flux as well as a high salt rejection in 3.5% NaCl aqueous solution at 75 ℃ for 3.5 d.

chabazite-type zeolite membranes  /  ionic liquids  /  desalination  /  pervaporation  /  hydrothermal stability
张慧智, 甘来, 刘妮, 黄欣悦, 胡娜, 陈祥树. 离子热法合成CHA型分子筛膜及其脱盐应用. 硅酸盐学报, 2022 , 50 (5) : 1375 -1384 . DOI: 10.14062/j.issn.0454-5648.20210599
Huizhi ZHANG, Lai GAN, Ni LIU, Xinyue HUANG, Na HU, Xiangshu CHEN. Ionothermal Synthesis of CHA-Type Zeolite Membrane for Desalination[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (5) : 1375 -1384 . DOI: 10.14062/j.issn.0454-5648.20210599
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Article Info
doi: 10.14062/j.issn.0454-5648.20210599
  • Receive Date：2021-07-23
  • Online Date：2026-10-22
  • Published：2022-05-20
Article Data
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History
  • Received：2021-07-23
  • Revised：2021-09-24
Funding
Affiliations
    Institute of Advanced Materials, State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China

Corresponding:

HU Na (1984-), female, Ph.D., Senior Experimentalist; E-mail:
CHEN Xiangshu (1966-), male, Ph.D., Professor.
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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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