Fabrication of g-C3N4 Nanosheets Anchored With Controllable CdS Nanoparticles for Enhanced Visible-Light Photocatalytic Performance

Abstract

Herein, g-C 3 N 4 /CdS hybrids with controllable CdS nanoparticles anchoring on g-C 3 N 4 nanosheets were constructed. The effects of CdS nanoparticles on photocatalytic H 2 production and organic molecule degradation for g-C 3 N 4 /CdS hybrids were investigated. The maximum rate of H 2 production for g-C 3 N 4 /CdS sample was 1,070.9 μmol g −1 h −1 , which was about four times higher than that of the individual g-C 3 N 4 nanosheet sample. The enhanced photocatalytic performance for prepared hybrids could be mainly attributed to the following causes: the formed heterojunctions can contribute to the light absorption and separation of photogenerated electrons and holes, the two-dimensional layered structure facilitates the transmission and transfer of electrons, and high specific surface area could provide more exposed active sites.