Fabrication of g-C3N4 wrapped CAU-17 for efficient photocatalytic H2O2 production

Abstract

Recently, photocatalytic production of H2O2 by semiconductors emerges as a green and potential method for green and sustainable H2O2 synthesis. In this work, a g-C3N4/CAU-17 composite with heterojunction structure was fabricated. There is a tight interface contact between g-C3N4 and CAU-17. And the g-C3N4 nanosheets was uniformly wrapped on CAU-17 surface. In the hybrid catalyst, CAU-17 provides a high surface area for g-C3N4 dispersion and the integration of g-C3N4 boosts the visible light response. Results showed that the H2O2 yield is 419.0 μmol.L-1.h-1 over g-C3N4/CAU-17 sample, which is 1.59 and 7.83 fold enhancements to bare g-C3N4 and CAU-17 counterparts. This work sheds light on the design of CAU-17-based composite photocatalysts and provides insights into H2O2 synthesis.