CUED Publications database

Improving Water-Treatment Performance of Zirconium Metal-Organic Framework Membranes by Postsynthetic Defect Healing

Wang, X and Zhai, L and Wang, Y and Li, R and Gu, X and Yuan, YD and Qian, Y and Hu, Z and Zhao, D (2017) Improving Water-Treatment Performance of Zirconium Metal-Organic Framework Membranes by Postsynthetic Defect Healing. ACS Applied Materials and Interfaces, 9. pp. 37848-37855. ISSN 1944-8244

Full text not available from this repository.

Abstract

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) 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. 2 +

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 22 Oct 2019 05:59
Last Modified: 08 Apr 2021 06:19
DOI: 10.1021/acsami.7b12750