A novel S-type porous g-C3N4/In2S3 heterojunction photocatalyst for efficient of CBZ degradation under visible light

Abstract

The construction of heterostructures was considered to be an excellent strategy to achieve efficient charge separation and enhanced photocatalytic activity. Herein, the two-dimensional spherical In₂S₃ anchored onto the porous carbon nitride surface by a facile self-assembly process benefiting from the special structural design, and the composite material is endowed with a large specific surface area and more active sites. And the novel S-type heterojunction structure can not only greatly improve the problem of carrier recombination but also maintain a high redox potential, thus further enhancing the performance of photocatalysts. Results showed that the best total photocatalytic degradation and remarkable photocatalytic activity effect of CBZ reaches 98.3% after 120 min could be obtained at the g-C₃N₄/In₂S₃ under near room temperature and pressure and without using any sacrificial agents or promoters. The composite catalyst still exhibited excellent stability after five cycles. This work will provide the deep understanding of constructing interface engineering modulation, providing enlightenment for the design of high-performance photocatalysts.