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Photocatalytic CO2 reduction in gas–solid regime in the presence of H2O by using GaP/TiO2 composite as photocatalyst under simulated solar light

Paper ID Volume ID Publish Year Pages File Format Full-Text
50725 46811 2014 4 PDF Available
Title
Photocatalytic CO2 reduction in gas–solid regime in the presence of H2O by using GaP/TiO2 composite as photocatalyst under simulated solar light
Abstract

•CO2 photocatalytic reduction mainly to CH4 is reported.•GaP/TiO2 composites exhibit photocatalytic activity under simulated solar light.•The maximum activity was observed with the 1:10 GaP:TiO2 weight ratio.•Photo-activity can be attributed to an efficient charge transfer between GaP and TiO2.

GaP/TiO2 composites exhibited a remarkable photocatalytic activity for CO2 reduction in the presence of water vapor producing methane. By decreasing the GaP:TiO2 mass ratio an increase in the photocatalytic activity of the composite was observed for up to a 1:10 mass ratio. The photocatalytic activity of the composite can be attributed to the band structures of the solids as well as to the efficient charge transfer between GaP and TiO2 heterojunction.

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Keywords
CO2 reduction; GaP; TiO2; Heterojunction; Photocatalysis
First Page Preview
Photocatalytic CO2 reduction in gas–solid regime in the presence of H2O by using GaP/TiO2 composite as photocatalyst under simulated solar light
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 53, 5 August 2014, Pages 38–41
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis