Carbon dioxide reduction under visible light: a comparison of cadmium sulfide and titania photocatalysts
Mikhail Lyulyukin, Anna Yu. Kurenkova, Andrey V. Bukhtiyarov, Ekaterina A. Kozlova
Abstract
Photocatalysts based on titania and solid solutions of cadmium and zinc sulfides with deposited metals (Pt, Ag) were compared in CO2 reduction under visible light. In the presence of titania- and cadmium sulfide-based photocatalysts, the dominant reduction products were CH4 and CO, respectively, due to different positions of the conduction band level for these semiconductors. The deposition of metals on the surface of both TiO2- and CdS-based samples increased the molar concentration of methane in the reaction products.
Topics & Concepts
ChemistryCadmium sulfideCadmiumZincMethaneSulfideInorganic chemistryPhotocatalysisZinc sulfideCarbon dioxideCarbon fibersVisible spectrumElectrochemical reduction of carbon dioxideDeposition (geology)Carbon monoxideCatalysisMaterials scienceOrganic chemistryComposite numberComposite materialPaleontologyOptoelectronicsSedimentBiologyAdvanced Photocatalysis TechniquesGas Sensing Nanomaterials and SensorsTiO2 Photocatalysis and Solar Cells