Ternary system of ZnO nanorods/reduced graphene oxide/CuInS 2 quantum dots for enhanced photocatalytic performance

摘要

AbstractA new ternary system consisting of ZnO nanorod/reduced graphene oxide (RGO)/CuInS2quantum dots has been successfully prepared for photocatalytic application under visible light irradiation. Through the hybridization with the light harvesting material of CuInS2, as well as the conductivity medium RGO, the ternary composite achieves a greatly enhanced light absorption and charge transfer than that of the pristine ZnO. The photocatalytic performance of ZnO-RGO-CuInS2is substantially elevated with an optimized content of 10% CuInS2incorporated. The composite material of ZnO-RGO-10% CuInS2can nearly completely degrade Rhodamine B (RhB) solution in 120?min, whereas bare ZnO itself can only degrade 20% RhB. The excellent photocatalytic performance of ZnO-RGO-CuInS2demonstrates its promising in the photocatalytic or other extended applications. This work demonstrates a facile way to prepare integrative photosensitizer by taking advantage from the co-catalysts for more efficient and stable semiconductor based composite photocatalyst.Graphical abstractDisplay OmittedHighlights?Nanocomposite ZnO-RGO-CuInS2has been prepared for photocatalytic application.?Achieving a greatly enhanced light absorption and charge transfer process.?Performing an excellent photocatalytic property to degrade RhB solution.]]>