CuInS(2)/Mg(OH)(2) Nanosheets for the Enhanced Visible-Light Photocatalytic Degradation of Tetracycline

CuInS(2)/Mg(OH)(2) (CIS/Mg(OH)(2)) nanosheets have been prepared for the visible light activated photodegradation of tetracycline hydrochloride (TCH). The introduction of CuInS(2) has proven to enhance the photocatalytic activity of Mg(OH)(2) nanosheets. It’s ascribed to the enhanced transfer and separation of charge carriers at the junction interface between CuInS(2) and Mg(OH)(2). The photocatalytic activity of obtained CIS/Mg(OH)(2) is greatly affected by CuInS(2) content, pH value, and inorganic ions. Among these samples, 2-CIS/Mg(OH)(2) exhibits the excellent photocatalytic activity and durability for the visible light driven removal of TCH after five cycle times. Atomic force microscope (AFM) images indicate that the surface roughness of 2-CIS/Mg(OH)(2) is intensively influenced in adsorption-photocatalysis process. The •O(2)(−) and •OH radicals are vital for the visible light driven photocatalytic activity of 2-CIS/Mg(OH)(2) for TCH removal.