Carbon quantum dots/Cu2O composites with protruding nanostructures and their highly efficient (near) infrared photocatalytic behavior

Abstract

Carbon quantum dots (CQDs)/Cu2O composite with protruding nanostructures on the surface is prepared by facile one-step ultrasonic treatment. We demonstrate for the first time that this photocatalytic system could harness the (near) infrared light to enhance the photocatalytic activity based on the collective effect of superior light reflecting ability of the Cu2O protruding nanostructures and the up-converted photoluminescence property of CQDs.