Application of layered double hydroxide activated persulfate in water treatment
The advanced oxidation technology based on sulfate radical(SR-AOPs)has garnered significant attention due to its strong oxidation property,broad pH tolerance,and facile procedures.Layered double-metal hydroxide(LDHS),characterized by their unique layered structure advantages,anion exchangeability,controllable laminate composition,and memory effect,exhibits excellent reactivity and catalytic benefits in persulfate activation.The application of LDHS and its composites as varied catalysts to activate persulfate in water pollution treatment was reviewed.Finally,the continuous improvement of the LDHS catalytic system was discussed with the future research directions.