Construction of Bi2S3/TiO2/MoS2 S‐Scheme Heterostructure with a Switchable Charge Migration Pathway for Selective CO2 Reduction

• DOI: 10.1002/solr.202100501
• Publication Date: 2021-08-27T08:47:05Z
• Authors: Khaled Alkanad; Abdo Hezam; Qasem Ahmed Drmosh; Sujay Shekar Gang...; Abeer A. AlObaid; Ismail Warad; Mohammed Abdullah...; Lokanath Neratur ...
• Keywords: Charge carrier

Switching between the redox potential of an appropriate semiconductor heterostructure could show critical applications in selective CO 2 reduction. Designing a photocatalyst with wavelength‐dependent response is effective strategy for regulating direction electron flow and tuning potential. Herein, switching mechanism two charge migration pathways potentials Bi S 3 /TiO /MoS by light wavelength achieved. In situ irradiated X‐ray photoelectron spectroscopy (ISI‐XPS), spin resonance (ESR), photoluminescence (PL), experimental scavenger analyses prove that transport follows S‐scheme approach under UV–vis–NIR irradiation heterojunction vis–NIR irradiation, confirming switchable feature heterostructure. This leads to reduction molecules CH OH C H 5 while 4 are produced Vis–NIR irradiation. Interestingly, apparent quantum efficiency optimal composite at λ = 600 nm 4.23%. research work presents opportunity develop photocatalysts