Please use this identifier to cite or link to this item: https://doi.org/10.1021/acsami.7b12750
Title: Improving Water-Treatment Performance of Zirconium Metal Organic Framework Membranes by Postsynthetic Defect Healing
Authors: Wang, Xuerui 
Zhai, Linzhi
Wang, Yuxiang 
Li, Ruitong
Gu, Xuehong
Di Yuan, Yi
Qian, Yuhong 
Hu, Zhigang 
Zhao, Dan 
Keywords: Science & Technology
Technology
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Science & Technology - Other Topics
Materials Science
metal-organic frameworks
polycrystalline membranes
hollow fibers
UiO-66
postsynthetic defect healing
water treatment
ZEOLITE MEMBRANES
UIO-66
DESALINATION
STABILITY
LIGAND
FILMS
Issue Date: 1-Nov-2017
Publisher: AMER CHEMICAL SOC
Citation: Wang, Xuerui, Zhai, Linzhi, Wang, Yuxiang, Li, Ruitong, Gu, Xuehong, Di Yuan, Yi, Qian, Yuhong, Hu, Zhigang, Zhao, Dan (2017-11-01). Improving Water-Treatment Performance of Zirconium Metal Organic Framework Membranes by Postsynthetic Defect Healing. ACS APPLIED MATERIALS & INTERFACES 9 (43) : 37848-37855. ScholarBank@NUS Repository. https://doi.org/10.1021/acsami.7b12750
Abstract: © 2017 American Chemical Society. Microporous metal-organic frameworks (MOFs) as building materials for molecular sieving membranes offer unique opportunities to tuning the pore size and chemical property. The recently reported polycrystalline Zr-MOF membranes have greatly expanded their applications from gas separation to water treatment. However, Zr-MOFs are notoriously known for their intrinsic defects caused by ligand/cluster missing, which may greatly affect the molecular sieving property of Zr-MOF membranes. Herein, we present the mitigation of ligand-missing defects in polycrystalline UiO-66(Zr)-(OH)2 membranes by postsynthetic defect healing (PSDH), which can help in increasing the membranes' Na+ rejection rate by 74.9%. Intriguingly, the membranes also exhibit excellent hydrothermal stability in aqueous solutions (>600 h). Our study proves the feasibility of PSDH in improving the performance of polycrystalline Zr-MOF membranes for water-treatment applications.
Source Title: ACS APPLIED MATERIALS & INTERFACES
URI: https://scholarbank.nus.edu.sg/handle/10635/170187
ISSN: 19448244
19448252
DOI: 10.1021/acsami.7b12750
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