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Updated: Jun 9, 2025

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light
Published on: June 12, 2019
Challenges in Photocatalytic Carbon Dioxide Reduction
Guangfu Liao1, Guixiang Ding1, Bin Yang2
1National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Abstract:
An energy crisis and significant anthropogenic CO2 emissions as a result of rising fossil fuel consumption have caused a rapid increase in global temperature. One of the best solutions to these two issues is thought to be the photocatalytic reduction of CO2 into value-added carbon-containing products. In this aspect, the main challenges mainly include the photocatalytic mechanism, reaction activity, and product selectivity, especially in ambiguous reaction pathways and product selectivity, an unclear charge transfer mechanism, and an overestimate of product yield. Therefore, in this perspective, we attempt to exhibit the discussion and in-depth analysis of the possible reaction pathways and product selectivity, the specific charge transfer mechanism, and the origin of carbon-containing products in phtocatalytic CO2 reduction. Besides, the fundamentals for photocatalytic CO2 reduction are also illustrated. Finally, the state-of-the-art challenges and perspectives in CO2 photoreduction are highlighted and discussed in detail. This perspective is expected to evoke more research attention for the photocatalytic reduction of CO2 into value-added products.
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