Oxygen-deficient MoO3−x evoked synergistic photo-thermal catalytic CO2 reduction over g-C3N4

Developing inexpensive co-catalysts for photo-thermal synergistic catalysis by artificially inducing active sites on non-noble metal compounds has drawn much attention recently. In this work, oxygen-deficient molybdenum oxide (MoO3−x) was in situ photodeposited on the surface of graphite-like carbon...

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Bibliographic Details
Published in:Catalysis science & technology 2023-03, Vol.13 (5), p.1325-1334
Main Authors: Su, Fengyun, Wang, Zhishuai, Cao, Hailong, Xie, Haiquan, Tu, Wenguang, Xiao, Yonghao, Shi, Shukui, Chen, Jiaqi, Jin, Xiaoli, Kong, Xin Ying
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon nitride
Catalytic activity
Catalytic converters
Conversion
Current carriers
Metal compounds
Molybdenum oxides
Molybdenum trioxide
Noble metals
Oxygen
Photocatalysis
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Summary:Developing inexpensive co-catalysts for photo-thermal synergistic catalysis by artificially inducing active sites on non-noble metal compounds has drawn much attention recently. In this work, oxygen-deficient molybdenum oxide (MoO3−x) was in situ photodeposited on the surface of graphite-like carbon nitride (g-C3N4) to tremendously improve its photocatalytic activity for CO2 conversion. A series of characterization analyses divulged that the MoO3−x not only promoted the separation of photo-generated charge carriers, but also served as the active sites for the adsorption and activation of CO2 molecules. More importantly, the oxygen-vacancy defect sites of MoO3−x can trigger localized surface plasmon resonance (LSPR) that enables effective harnessing of near-infrared (NIR) photons, promoting photo-thermal synergistic catalytic conversion of CO2 into value-added fuels through full solar spectrum harnessing.
ISSN:2044-4753
2044-4761
DOI:10.1039/d2cy01944b