Preparation of Ag2O/ZnCr-LDH Nanocomposite with Enhanced Photocatalytic Activity under Visible Light

Nowadays energy consumption and environmental pollution are two universal problems in front of human societies. Semiconductor photocatalysis has been immensely studied as a promising strategy for solar energy alteration and solving environmental problems [1-3]. In present study, Ag2O nanoparticles were loaded on the surface of ZnCr-LDHs via an anion-exchange precipitation approach by using privilege of the memory trace feature of the LDH-type materials. The photocatalytic degradation studies on acid black ascertained that the prepared Ag2O/ZnCr-LDH nanocomposite represent an observably increased activity in degradation of organic pollutants under visible light compared with pure Ag2O and ZnCr-LDH. This enhanced photocatalytic activity can be ascribed to the increased surface area, in good order distributing of particles and effective charge carrier transfer and separation in the nanocomposite.

کلیدواژه ها:

Photocatalyst ، Layered double hydroxide ، Dye degradation