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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Journal ArticleDOI
Reduction of CO2 by adsorption and reaction on surface of TiO2-nitrogen modified photocatalyst
Beata Michalkiewicz,Justyna Majewska,Grzegorz Kądziołka,Kamila Bubacz,Sylwia Mozia,Antoni W. Morawski +5 more
TL;DR: In this article, a photocatalyst was synthesized by hydrothermal reaction of amorphous anatase TiO 2 and NH 4 OH at 100°C, which was characterized by FE-SEM, XRD, nitrogen content using elemental analyzer, UV-vis/DR spectroscopy and N 2 adsorption at liquid nitrogen temperature.
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High‐Efficiency InP‐Based Photocathode for Hydrogen Production by Interface Energetics Design and Photon Management
Lu Gao,Y Yingchao Cui,René H. J. Vervuurt,Dick van Dam,René van Veldhoven,Jan P. Hofmann,Ageeth A. Bol,Jos E. M. Haverkort,Peter H. L. Notten,Peter H. L. Notten,Erik P. A. M. Bakkers,Erik P. A. M. Bakkers,Emiel J. M. Hensen +12 more
TL;DR: In this article, a three-pronged approach to obtain excellent performance of an InP-based photoelectrode for water reduction is presented, which includes a buried p-n+ junction, which shifts the valence band edge favorably with respect to the hydrogen redox potential.
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Dynamics of Interfacial Charge Transfer to Formic Acid, Formaldehyde, and Methanol on the Surface of TiO2 Nanoparticles and Its Role in Methane Production
TL;DR: In this article, transient absorption and electron paramagnetic resonance spectroscopies were used to study reactions of photogenerated electrons and holes on TiO2 with methanol, formaldehyde, and formic acid (compounds that, together with methane, have been observed in the photocatalytic reduction of CO2).
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New Way for CO2 Reduction under Visible Light by a Combination of a Cu Electrode and Semiconductor Thin Film: Cu2O Conduction Type and Morphology Effect
TL;DR: In this article, a combination of metal electrode and semiconductor thin films responsive to visible light was used for catalytic reduction of CO2 in photoelectrochemical systems in comparison with that in photochemical and electrochemical systems, and the results showed that the prepared Cu/Cu2O samples have much higher selectivity for C2H4 formation compared with the pure Cu electrode.
Journal ArticleDOI
Highly selective defect-mediated photochemical CO2 conversion over fluorite ceria under ambient conditions
TL;DR: The local strain and surface oxygen vacancies embedded in the defect-rich CeO2 are suggested to play a decisive role in mediating the photochemical CO2 conversion.