Recent Progress and Perspectives of S-Scheme Heterojunction Photocatalysts for Photocatalytic CO<sub>2</sub> Reduction

Guo, Rui-tang; Guo, Sheng-hui; Yu, Ling-qi; Pan, Wei-guo

doi:10.1021/acs.energyfuels.3c04118

Cited by 3 publications

(1 citation statement)

References 180 publications

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“…However, the CO 2 photoreduction catalysts that are now in use typically have some issues, such as poor stability, limited product selectivity, low energy conversion, inability to stifle the hydrogen evolution reaction (HER), and high electron–hole coincidence . Therefore, the key to improving the photocatalytic reduction of CO 2 is to solve the problem of adsorption and activation of CO 2 in aqueous solution while reducing the electronic competition between the HER and CO 2 reduction .…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Reduction of CO₂ by TiO₂ Modified Materials: Recent Advances and Outlook

Chen,

Li,

et al. 2024

Energy Fuels

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Carbon dioxide (CO 2 ) is one of the main causes of global warming. Scientists have found that the photocatalytic conversion of CO 2 using visible light can not only reduce CO 2 emissions and thus mitigate the rise of CO 2 concentration in the atmosphere but also produce high-value compounds and fuels, such as CH 4 , CO, HCOOH, and CH 3 OH. TiO 2 -based modified photocatalytic materials have the advantages of high performance and good chemical stability, so they have broad application potential in the field of CO 2 photocatalysis. So far, a lot of research has been done on the way of photocatalytic reaction and the development of materials, but these achievements still have a long way to go for practical engineering applications, and the modification of TiO 2 groups may be one of the ways to promote its engineering application ability. For this reason, this paper reviews the modification measures of defect engineering, photosensitization, heterojunctions, and so on, hoping to be helpful in follow-up research work in the fields of improving the performance of devices, improving the utilization of visible light, reducing the carrier recombination rate, and changing the efficiency of photocatalytic reduction. Among various modification methods, defect engineering and photosensitization have been applied, but heterojunction construction is still the most effective way to improve the reduction rate. Therefore, in this review, we mainly focus on the construction of heterojunctions to improve the reduction rate, especially on the progress of charge transfer mechanism of different heterojunctions. By summarizing the current research status, the future development of heterojunctions is reasonably considered and speculated.

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Section: Introductionmentioning

confidence: 99%

Photocatalytic Reduction of CO₂ by TiO₂ Modified Materials: Recent Advances and Outlook

Chen,

Li,

et al. 2024

Energy Fuels

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Research Status, Challenges, and Future Prospects of Carbon Dioxide Reduction Technology

Dang,

Guan,

Chen

et al. 2024

Energy Fuels

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The survival and sustainable development of humanity are gravely threatened by climate change, which has recently been elevated to the status of one of the greatest threats to humanity’s survival and security on a worldwide scale. In response to global climate change, how to obtain renewable and clean fuels is an important challenge for the sustainable development of human society. In order to reach the carbon peak and attain carbon neutrality, using CO2 as a resource has become a crucial aim for human civilization. Converting CO2 into chemical products with higher added value, that is, CO2 resource utilization technology can not only achieve CO2 emission reduction but also have certain economic benefits. The technologies of CO2 resource utilization primarily include photocatalytic reduction, electrocatalytic reduction, thermal catalytic reduction, and relay catalysis. This paper mainly summarizes the mechanism of CO2 catalytic conversion technologies and the research status of related catalysts, and summarizes and discusses prospects for the development of the CO2 catalytic reduction system (catalyst modification, product selectivity improvement, etc.). The ideas and guidance are provided for the development of efficient and stable CO2 reduction catalysts and the application of CO2 catalytic reduction technology in the areas of environment and energy.

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Efficient Electron Transfer in g-C3N4/TiO2 Heterojunction for Enhanced Photocatalytic CO2 Reduction

Jiang,

Yu,

Wang

et al. 2024

Catalysts

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Excessive emissions of carbon dioxide have led to the greenhouse effect and global warming. Reducing carbon dioxide into high-value-added chemicals through solar energy is a promising approach. Herein, a g-C3N4/TiO2 heterojunction photocatalyst with efficient electron transfer is designed for photocatalytic CO2 reduction. The CH4 (18.32 µmol·h−1·g−1) and CO (25.35 µmol·h−1·g−1) evolution rates of g-C3N4/TiO2 are higher than those of g-C3N4 and TiO2. The enhanced photocatalytic CO2 reduction performance is attributed to the efficient charge carrier transfer in the g-C3N4/TiO2 heterojunction. The electron transfer route was verified by in situ irradiated X-ray photoelectron spectroscopy (XPS). The photocatalytic CO2 reduction mechanism on g-C3N4/TiO2 was investigated by in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). This work provides a strategy for designing a polymer/metallic oxide heterojunction with efficient electron transfer for enhanced photocatalytic CO2 reduction.

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Recent Progress and Perspectives of S-Scheme Heterojunction Photocatalysts for Photocatalytic CO₂ Reduction

Cited by 3 publications

References 180 publications

Photocatalytic Reduction of CO₂ by TiO₂ Modified Materials: Recent Advances and Outlook

Photocatalytic Reduction of CO₂ by TiO₂ Modified Materials: Recent Advances and Outlook

Research Status, Challenges, and Future Prospects of Carbon Dioxide Reduction Technology

Efficient Electron Transfer in g-C3N4/TiO2 Heterojunction for Enhanced Photocatalytic CO2 Reduction

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Recent Progress and Perspectives of S-Scheme Heterojunction Photocatalysts for Photocatalytic CO2 Reduction

Cited by 3 publications

References 180 publications

Photocatalytic Reduction of CO2 by TiO2 Modified Materials: Recent Advances and Outlook

Photocatalytic Reduction of CO2 by TiO2 Modified Materials: Recent Advances and Outlook

Research Status, Challenges, and Future Prospects of Carbon Dioxide Reduction Technology

Efficient Electron Transfer in g-C3N4/TiO2 Heterojunction for Enhanced Photocatalytic CO2 Reduction

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Product

Resources

About

Recent Progress and Perspectives of S-Scheme Heterojunction Photocatalysts for Photocatalytic CO₂ Reduction

Photocatalytic Reduction of CO₂ by TiO₂ Modified Materials: Recent Advances and Outlook

Photocatalytic Reduction of CO₂ by TiO₂ Modified Materials: Recent Advances and Outlook