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
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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
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Photocatalytic reduction of CO2 with H2O on various titanium oxide catalysts
TL;DR: In this paper, an anatase-type TiO2 catalyst with large band gap and numerous surface OH groups showed high efficiency for the formation of CH4 and CH3H.
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Effect of graphitic carbon nitride microstructures on the activity and selectivity of photocatalytic CO2 reduction under visible light
TL;DR: In this paper, two kinds of graphitic carbon nitride (g-C3N4) were synthesized through a pyrolysis process of urea or melamine.
Journal ArticleDOI
Reduction potentials of CO2- and the alcohol radicals
H. A. Schwarz,R. W. Dodson +1 more
TL;DR: In this paper, the reduction potentials for CO{sub 2}O{sup {sm bullet}{minus}, CH{sub 3}CHO{sup{sm bullet}, and (CH,sub 3)3}COH were derived based on the assumption that the free energy of solution of the neutral radicals is the same as for the corresponding alcohol or formic acid.
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Photocatalytic Reduction of CO2 with H2O on Titanium Oxides Anchored within Micropores of Zeolites: Effects of the Structure of the Active Sites and the Addition of Pt
TL;DR: Titanium oxide species anchored within the Y-zeolite cavities by an ion exchange method exhibit a high and unique photocatalytic reactivity for the reduction of CO2 with H2O at 328 K with a high se
Journal ArticleDOI
Carbon Dioxide Capture from the Air Using a Polyamine Based Regenerable Solid Adsorbent
Alain Goeppert,Miklos Czaun,Robert B. May,G. K. Surya Prakash,George A. Olah,Sekharipuram R. Narayanan +5 more
TL;DR: Easy to prepare solid materials based on fumed silica impregnated with polyethylenimine (PEI) were found to be superior adsorbents for the capture of carbon dioxide directly from air.