Journal of Alloys and Compounds, volume 940, pages 168796
2D–1D-2D multi-interfacial-electron transfer scheme enhanced g-C3N4/MWNTs/rGO hybrid composite for accelerating CO2 photoreduction
Publication type: Journal Article
Publication date: 2023-04-01
Journal:
Journal of Alloys and Compounds
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 6.2
ISSN: 09258388
Materials Chemistry
Metals and Alloys
Mechanical Engineering
Mechanics of Materials
Abstract
Highly-efficient supply of the photogenerated carriers is a necessary condition for excellent photocatalytic reactions. In this paper, 2D–1D-2D multi-interfacial electron transfer scheme enhanced g-C3N4/MWNTs/rGO (CMR) were prepared for CO2 photoreduction. CO2 photoreduction tests showed that the CO and CH4 yields with CMR-3 as the catalyst were about 699.69 μmol/g and 479.47 μmol/g under the UV-Vis light irradiation, which were about 21.9 and 59.3 times higher than that of pure g-C3N4. Furthermore, the obtained CMR-3 also exhibited excellent CO2 photoreduction performance under the visible light irradiation, and the obtained CO/CH4 ratio of g-C3N4 and CMR-3 were about 13.08 and 73.54, which confirmed that the CO selectivity was greatly enhanced after the co-modification of P-MWNTs and rGO. Photo-electrochemistry tests confirmed that the modification of P-MWNTs and rGO can efficiently speed up the separation efficiency of photogenerated carriers inside of g-C3N4. Besides, Zeta potential, water contact angle, and static experiment proved the co-modification of P-MWNTs and rGO could improve the dispersion of g-C3N4 in water environment. The UPS and UV-Vis DRS further confirmed the built-in electric fields at the interfaces of g-C3N4/P-MWNTs, P-MWNTs/rGO and g-C3N4/rGO, which were great beneficial for the CO2 photoreduction reaction. Finally, the multi-interfacial electron transfer scheme enhanced photoreduction process was provided.
Top-30
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Citations by publishers
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Elsevier
6 publications, 85.71%
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Li X. et al. 2D–1D-2D multi-interfacial-electron transfer scheme enhanced g-C3N4/MWNTs/rGO hybrid composite for accelerating CO2 photoreduction // Journal of Alloys and Compounds. 2023. Vol. 940. p. 168796.
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Li X., Sun B., Wu Q., Yang J., Liu X., Cao J., Yang J., Liu H., Wei M. 2D–1D-2D multi-interfacial-electron transfer scheme enhanced g-C3N4/MWNTs/rGO hybrid composite for accelerating CO2 photoreduction // Journal of Alloys and Compounds. 2023. Vol. 940. p. 168796.
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TY - JOUR
DO - 10.1016/j.jallcom.2023.168796
UR - https://doi.org/10.1016/j.jallcom.2023.168796
TI - 2D–1D-2D multi-interfacial-electron transfer scheme enhanced g-C3N4/MWNTs/rGO hybrid composite for accelerating CO2 photoreduction
T2 - Journal of Alloys and Compounds
AU - Li, Xin
AU - Sun, Baoyan
AU - Wu, Qiong
AU - Yang, Jinghai
AU - Liu, Xiaoyan
AU - Cao, Jianliang
AU - Yang, Jinghai
AU - Liu, Huilian
AU - Wei, Maobin
PY - 2023
DA - 2023/04/01 00:00:00
PB - Elsevier
SP - 168796
VL - 940
SN - 0925-8388
ER -
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@article{2023_Li,
author = {Xin Li and Baoyan Sun and Qiong Wu and Jinghai Yang and Xiaoyan Liu and Jianliang Cao and Jinghai Yang and Huilian Liu and Maobin Wei},
title = {2D–1D-2D multi-interfacial-electron transfer scheme enhanced g-C3N4/MWNTs/rGO hybrid composite for accelerating CO2 photoreduction},
journal = {Journal of Alloys and Compounds},
year = {2023},
volume = {940},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016/j.jallcom.2023.168796},
pages = {168796},
doi = {10.1016/j.jallcom.2023.168796}
}