Applied Surface Science, volume 563, pages 150042
rGO modified R-CeO2/g-C3N4 multi-interface contact S-scheme photocatalyst for efficient CO2 photoreduction
Xiaolin Li
1
,
Jingru Guan
1
,
Haopeng Jiang
1
,
Xianghai Song
1
,
Pengwei Huo
1
,
王慧琴 Wang Huiqin
2
Publication type: Journal Article
Publication date: 2021-10-01
Journal:
Applied Surface Science
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 6.7
ISSN: 01694332
Surfaces, Coatings and Films
General Chemistry
General Physics and Astronomy
Condensed Matter Physics
Surfaces and Interfaces
Abstract
rGO modified g-C 3 N 4 /R-CeO 2 Multi-interface contact S-scheme heterojunction photocatalyst maximizes the transfer efficiency of photogenerated electron and the CO 2 adsorption ability, thus greatly improving the CO 2 photoreduction performance. • 2D-1D-2D g-C 3 N 4 /R-CeO 2 /rGO photocatalyst has been prepared for CO 2 photoreduction. • 2D-1D-2D multi-interface contact structure is of help for carrier transfer process. • π-π conjugation effect and Ce 4+ /Ce 3+ transformation facilitate electron transmission. • In-situ FTIR and 13 C isotope tracer tests analysis the CO 2 photoreduction mechanism. Construction of multi-interface contact step-scheme (S-scheme) photocatalyst is a promising pathway to achieve high-electron transfer efficiency for photocatalytic CO 2 reduction. In this paper, g-C 3 N 4 nanosheets were selected as the main photocatalyst, rod-like CeO 2 (R-CeO 2 ) with unique Ce 4+ →Ce 3+ conversion property and rGO were loaded on the g-C 3 N 4 surface to construct 2D-1D-2D sandwich photocatalyst. The yields of CO and CH 4 were about 63.18 and 32.67 μmol/g after 4 h when the rGO/R-CeO 2 /g-C 3 N 4 was used as catalyst, which were about 4 and 6 times higher than that of pure CN, respectively. Cyclic experiments proved that the composite had excellent photocatalytic and material stability. Photoelectrochemical tests showed that the construction of S-scheme electron transfer model and the introduction of rGO can great enhance the electron transmission and separation of photogenerated electron-hole pairs. CO 2 adsorption test identified that the loading of R-CeO 2 and rGO obviously enhanced the CO 2 adsorption ability of pure g-C 3 N 4 . Density functional theory (DFT) calculations used to analyze the electron transfer path and the formation of the build-in electric field at the semiconductor interface. In-situ FTIR and 13 CO 2 element-tracer detection carried out to research the process of CO 2 photoreduction. A possible multi-interface contact S-scheme electron transfer mechanism for enhanced CO 2 photoreduction activity has been discussed.
Top-30
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Citations by publishers
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Elsevier
44 publications, 77.19%
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American Chemical Society (ACS)
3 publications, 5.26%
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Multidisciplinary Digital Publishing Institute (MDPI)
2 publications, 3.51%
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Wiley
2 publications, 3.51%
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Royal Society of Chemistry (RSC)
2 publications, 3.51%
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Springer Nature
2 publications, 3.51%
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Korean Society of Industrial Engineering Chemistry
1 publication, 1.75%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 1.75%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Li X. et al. rGO modified R-CeO2/g-C3N4 multi-interface contact S-scheme photocatalyst for efficient CO2 photoreduction // Applied Surface Science. 2021. Vol. 563. p. 150042.
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Li X., Guan J., Jiang H., Song X., Huo P., Wang Huiqin 王. rGO modified R-CeO2/g-C3N4 multi-interface contact S-scheme photocatalyst for efficient CO2 photoreduction // Applied Surface Science. 2021. Vol. 563. p. 150042.
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TY - JOUR
DO - 10.1016/j.apsusc.2021.150042
UR - https://doi.org/10.1016/j.apsusc.2021.150042
TI - rGO modified R-CeO2/g-C3N4 multi-interface contact S-scheme photocatalyst for efficient CO2 photoreduction
T2 - Applied Surface Science
AU - Li, Xiaolin
AU - Guan, Jingru
AU - Jiang, Haopeng
AU - Song, Xianghai
AU - Huo, Pengwei
AU - Wang Huiqin, 王慧琴
PY - 2021
DA - 2021/10/01 00:00:00
PB - Elsevier
SP - 150042
VL - 563
SN - 0169-4332
ER -
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@article{2021_Li,
author = {Xiaolin Li and Jingru Guan and Haopeng Jiang and Xianghai Song and Pengwei Huo and 王慧琴 Wang Huiqin},
title = {rGO modified R-CeO2/g-C3N4 multi-interface contact S-scheme photocatalyst for efficient CO2 photoreduction},
journal = {Applied Surface Science},
year = {2021},
volume = {563},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/j.apsusc.2021.150042},
pages = {150042},
doi = {10.1016/j.apsusc.2021.150042}
}