Cu-doped SnS2 nanosheets with superior visible-light photocatalytic CO2 reduction performance. Issue 6 (31st January 2023)

• Record Type: Journal Article
• Authors: Di, Tingmin; Cao, Tengfei; Liu, Han; Wang, Shenggao; Zhang, Jun
• Is Part Of: Physical chemistry chemical physics. Volume 25:Issue 6(2023)
• Page Start: 5196
• Page End: 5202
• Publication Date: 2023-01-31
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/d2cp04993g
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : A Cu doped SnS2 photocatalyst was synthesized by a simple hydrothermal process and displayed enhanced CO2 reduction activity, which is attributed to the narrowed band gap, enlarged SBET, efficient charge separation resulted from Cu doping. Abstract : Photocatalytic CO2 reduction utilizing solar energy is a clean, environment-friendly strategy converting CO2 into hydrocarbon fuels to solve the energy crisis and climate issues. Herein, we report the synthesis of Cu-doped SnS2 nanosheets via a simple hydrothermal method. The prepared Cu-doped SnS2 composite displays superior photocatalytic CO2 reduction activity. The optimized CH3 OH yield of the composite is two times higher than that of pure SnS2 . The enhanced photocatalytic performance is attributed to effective charge separation resulting from the thinner nanosheets and delocalization of electrons from SnS2 to Cu, high visible light utilization efficiency, enlarged S BET, negative shift of the flat-band potential and reduced charge transfer resistance with the introduction of Cu atoms. This work suggests the potential application of Cu-doped SnS2 in photocatalytic CO2 reduction.