Research progress of metal organic frameworks and their derivatives for adsorption of anions in water: A review

Xuanjie Huang; Lei Huang; Samuel Raj Babu Arulmani; Jia Yan; Qian Li; Jinfeng Tang; Kuilin Wan; Hongguo Zhang; Tangfu Xiao; Minhua Shao

doi:10.1016/j.envres.2021.112381

Research progress of metal organic frameworks and their derivatives for adsorption of anions in water: A review

Environ Res. 2022 Mar;204(Pt D):112381. doi: 10.1016/j.envres.2021.112381. Epub 2021 Nov 18.

Authors

Affiliations

¹ Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, PR China.
² Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, PR China; Guangzhou University-Linköping University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou, PR China. Electronic address: hgzhang@gzhu.edu.cn.
³ Department of Chemical and Biological Engineering, Energy Institute, Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory, And Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.

PMID: 34801541
DOI: 10.1016/j.envres.2021.112381

Abstract

Anion pollution in water has become a problem that cannot be ignored. The anion concentration should be controlled below the national emission standard to meet the demand for clean water. Among the methods for removing excess anions in water, the adsorption method has a unique removal performance, and the core of the adsorption method is the adsorbent. In recent years, the emerging metal-organic frameworks (MOFs) have the advantages of adjustable porosity, high specific surface area, diverse functions, and easy modification. They are very competitive in the field of adsorption of liquid anions. This article focuses on the adsorption of fluoride, arsenate, chromate, radioactive anions (ReO₄^-, TcO₄^-, SeO₄^2-/SeO₃^2-), phosphate ion, chloride ion, and other anions by MOFs and their derivatives. The preparation methods of MOFs are introduced in turn, the application of different types of metal-based MOFs to adsorb various anions were discussed in categories with their crystal structure and functional groups. The influence on the adsorption of anions is analyzed, including the more common and special adsorption mechanisms, adsorption kinetics and thermodynamics, and regeneration performance are briefly described. Finally, the current situation of MOFs adsorption of anions is summarized, and the outlook for future development is summarized to provide my own opinions for the practical application of MOFs.

Keywords: Adsorption; Anion; MOFs; Wastewater.

Publication types

Research Support, Non-U.S. Gov't
Review

MeSH terms

Adsorption
Anions
Metal-Organic Frameworks*
Water
Water Purification*

Substances

Anions
Metal-Organic Frameworks
Water