Journal ArticleDOI
CO2 photo-reduction: insights into CO2 activation and reaction on surfaces of photocatalysts
TLDR
In this article, a review describes recent advances in the fundamental understanding of CO2 photoreduction on the surface of heterogeneous catalysts and particularly provides an overview of enhancing the adsorption/activation of CO 2 molecules.Abstract:
Large amounts of anthropogenic CO2 emissions associated with increased fossil fuel consumption have led to global warming and an energy crisis. The photocatalytic reduction of CO2 into solar fuels such as methane or methanol is believed to be one of the best methods to address these two problems. In addition to light harvesting and charge separation, the adsorption/activation and reduction of CO2 on the surface of heterogeneous catalysts remain a scientifically critical challenge, which greatly limits the overall photoconversion efficiency and selectivity of CO2 reduction. This review describes recent advances in the fundamental understanding of CO2 photoreduction on the surface of heterogeneous catalysts and particularly provides an overview of enhancing the adsorption/activation of CO2 molecules. The reaction mechanism and pathways of CO2 reduction as well as their dependent factors are also analyzed and discussed, which is expected to enable an increase in the overall efficiency of CO2 reduction through minimizing the reaction barriers and controlling the selectivity towards the desired products. The challenges and perspectives of CO2 photoreduction over heterogeneous catalysts are presented as well.read more
Citations
More filters
Journal ArticleDOI
Graphitic Carbon Nitride (g-C3N4)-Based Photocatalysts for Artificial Photosynthesis and Environmental Remediation: Are We a Step Closer To Achieving Sustainability?
TL;DR: It is anticipated that this review can stimulate a new research doorway to facilitate the next generation of g-C3N4-based photocatalysts with ameliorated performances by harnessing the outstanding structural, electronic, and optical properties for the development of a sustainable future without environmental detriment.
Journal ArticleDOI
A review on g-C3N4-based photocatalysts
TL;DR: In this paper, the fundamental mechanism of heterogeneous photocatalysis, advantages, challenges and the design considerations of g-C3N4-based photocatalysts are summarized, including their crystal structural, surface phisicochemical, stability, optical, adsorption, electrochemical, photoelectrochemical and electronic properties.
Journal ArticleDOI
Cocatalysts for Selective Photoreduction of CO2 into Solar Fuels.
TL;DR: Various cocatalysts, such as the biomimetic, metal-based,Metal-free, and multifunctional ones, and their selectivity for CO2 photoreduction are summarized and discussed, along with the recent advances in this area.
Journal ArticleDOI
State of the Art and Prospects in Metal-Organic Framework (MOF)-Based and MOF-Derived Nanocatalysis.
Qi Wang,Didier Astruc +1 more
TL;DR: This review first briefly summarizes this background of MOF nanoparticle catalysis and then comprehensively reviews the fast-growing literature reported during the last years.
Journal ArticleDOI
Surface modification and enhanced photocatalytic CO2 reduction performance of TiO2: a review
TL;DR: In this paper, a review of the surface modification of TiO2 for photocatalytic CO2 reduction, including impurity doping, metal deposition, alkali modification, heterojunction construction and carbon-based material loading, is presented.
References
More filters
Journal ArticleDOI
Photocatalytic reduction of carbon dioxide on NiO/InTaO4 under visible light irradiation
Pei Wen Pan,Yu Wen Chen +1 more
TL;DR: In this paper, a photocatalyst system for the conversion of solar energy to electric energy or chemical energy is a topic of great interest with fundamental and practical importance, which is developed for photoreduction of carbon dioxide with water, and the effects of the NiO cocatalyst and pretreatment process on the photocatalytic reduction of the catalyst to methanol were investigated.
Journal ArticleDOI
Surface Characteristics of ZnS Nanocrystallites Relating to Their Photocatalysis for CO2 Reduction1
TL;DR: In this article, the photocatalytic behavior of ZnS−DMF(OAc) was investigated in the presence of SH groups on the surface, explaining the gradual growth of the size with the addition of excess zinc perchlorate.
Journal ArticleDOI
Reduction of CO2 and CO to methane on Cu foil electrodes
TL;DR: In this article, the electrochemical reduction of CO 2 has been studied on Cu foil electrodes in 0.5 M KHCO 3, pH 7.6, and it was demonstrated that CH 4 is formed from CO at a 50 times lower rate than from CO 2 with an onset potential of −1.5 to − 1.6 V vs. SCE.
Journal ArticleDOI
Semiconductor photocatalysis. 13. Effective photoreduction of carbon dioxide catalyzed by zinc sulfide quantum crystallites with low density of surface defects
TL;DR: ZnS quantum crystallites effectively catalyze CO photoreduction in water with NaH{sub 2}PO[sub 2] and coexisting Na{sub2}S under UV irradiation as discussed by the authors.
Journal ArticleDOI
Adsorbed Species of CO2 and H2 on Ga2O3 for the Photocatalytic Reduction of CO2
TL;DR: In this paper, the photocatalytic reduction of CO2 in the presence of H2 as the reductant was performed over MgO, CaO, ZrO2, Ga2O3, and Al 2O3.