In this paper,the structure and properties of layered double hydroxides(LDHs)and their applica-tion in arsenic-contaminated water/soil remediation were reviewed.LDHs preparation methods such as co-precipi-tation,hydrothermal synthesis,ion exchange,sol-gel and calcination,as well as modification methods such as sur-face modification,intercalation and calcination restoration were introduced.The mechanism and influencing factors of arsenic removal by LDHs adsorption were analyzed,as well as the shortcomings existing in the process of materi-al synthesis,optimization and application.Subsequent research directions were proposed to form industrial produc-tion process,develop composite materials with strong selectivity and stability,improve impact load resistance in complex matrix,and explore influences of isomorphic replacement on layered structure.
维普
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