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
Photo-Initiated Reduction of CO2 by H2 on Silica Surface
TL;DR: Infrared spectroscopy provides evidence for a chain reaction initiated by VUV-induced CO2 splitting, which is enhanced in the presence of H2 and silica, and reveals a potential, simple strategy by which CO2 could be valorized.
DissertationDOI
Preparation and Characterisation of Photocatalysts for CO2 valorisation in Membrane Reactors
TL;DR: In this article, the authors present the SIACE Environmental Sciences and Engineering, of Buildings and Energy (SIACE) Conference. Ciclo XXXI XXXI and C. Cicco XXXI
Journal ArticleDOI
Polythiacalixarene-Embedded Gold Nanoparticles for Visible-Light-Driven Photocatalytic CO2 Reduction
Tina Skorjanc,Khaja Mohaideen Kamal,Ayesha A. AlKhoori,Gregor Mali,Abdul Khayum Mohammed,Zouhair Asfari,Kyriaki Polychronopoulou,Blaž Likozar,Ali Trabolsi,Dinesh K. Shetty +9 more
TL;DR: In this paper , the authors used a thiacalix[4]arene-based polymer as a porous support with abundant docking sites for Au nanoparticles for photocatalytic CO2 reduction.
Journal ArticleDOI
Tunable green syngas generation from CO2 and H2O with sunlight as the only energy input
Roksana Tonny Rashid,Yiqing Chen,Xue Liu,Faqrul A. Chowdhury,Mingxin Liu,Jun Song,Zetian Mi,Baowen Zhou +7 more
TL;DR: In this paper , a core/shell Au@Cr2O3 dual cocatalyst was used to deform the linear CO2 molecule, thus reducing the energy barrier of CO2RR.
Journal ArticleDOI
CO2 to green fuel: Photocatalytic process optimization study
TL;DR: In this article, the authors focused on process modeling and simulation of CO2 conversion to methanol using Cu/TiO2 photocatalyst and implemented the Response Surface Methodology to study the effect of process parameters, including temperature, pressure, and feed flow rate.
References
More filters
Journal ArticleDOI
Heterogeneous photocatalyst materials for water splitting
Akihiko Kudo,Yugo Miseki +1 more
TL;DR: This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent.
Journal ArticleDOI
Solar Water Splitting Cells
Michael G. Walter,Emily L. Warren,James R. McKone,Shannon W. Boettcher,Qixi Mi,Elizabeth A. Santori,Nathan S. Lewis +6 more
TL;DR: The biggest challenge is whether or not the goals need to be met to fully utilize solar energy for the global energy demand can be met in a costeffective way on the terawatt scale.
Journal ArticleDOI
Powering the planet: Chemical challenges in solar energy utilization
Nathan S. Lewis,Daniel G. Nocera +1 more
TL;DR: Solar energy is by far the largest exploitable resource, providing more energy in 1 hour to the earth than all of the energy consumed by humans in an entire year, and if solar energy is to be a major primary energy source, it must be stored and dispatched on demand to the end user.
Journal ArticleDOI
Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting
TL;DR: This introductory review covers the fundamental aspects of photocatalytic and photoelectrochemical water splitting and recent advances in the water splitting reaction under visible light will be presented with a focus on non-oxide semiconductor materials to give an overview of the various problems and solutions.
Journal ArticleDOI
Nano‐photocatalytic Materials: Possibilities and Challenges
TL;DR: This article reviews state-of-the-art research activities in the field, focusing on the scientific and technological possibilities offered by photocatalytic materials, and highlights crucial issues that should be addressed in future research activities.