期刊
CHEMOSPHERE
卷 287, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2021.132140
关键词
Layered double hydroxides; Water treatment; LDH-Based membranes; Membrane fabrication; Membrane properties; Inorganic and organic pollutants
资金
- King Fahd University of Petroleum and Minerals, Saudi Arabia
Layered double hydroxides (LDHs) are a class of two-dimensional inorganic materials with unique physicochemical properties, widely used in water treatment and membrane separation. LDH-based membranes exhibit excellent antifouling capability and enhanced water flux for the treatment of organics and inorganics in environmental water samples.
Layered double hydroxides (LDHs) represent an exciting class of two-dimensional inorganic materials with unique physicochemical properties. They have been widely employed in water treatment due to their high surface areas, excellent ion exchange capacities, and highly tunable structures. They have also been employed in the fabrication and development of membranes for water treatment. 2D nanostructures as well as tailorable structure forming units, surface functionalization with desired moieties, and interlayer galleries with adjustable heights and internal compositions make them attractive materials for membrane separations. This paper critically overviews the recent advancements in the synthesis and applications of LDH based membranes in water purification. The synthesis techniques and the effect of LDH incorporation into different membrane compositions have been described. LDH-based membranes showed excellent antifouling capability and improved water flux due to enhanced hydrophilicity. Such membranes have been successfully used for the treatment of inorganics, organics from environmental water samples. This review will be useful for understanding the current state of the LDH-based membranes for water purification and defining future research dimensions. In the end, we highlight some challenges and future prospects for the efficient application of LDH-based membranes in water decontamination.
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