Applied Catalysis B: Environmental, volume 286, pages 119944

Engineering 2D multi-hetero-interface in the well-designed nanosheet composite photocatalyst with broad electron-transfer channels for highly-efficient solar-to-fuels conversion

Jinlei Wu
Po Lu
Guoqiang Fang
Xin Li
William W. Yu
Zhenyi Zhang
Bin Dong
Publication typeJournal Article
Publication date2021-06-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor22.1
ISSN09263373, 18733883
Catalysis
Process Chemistry and Technology
General Environmental Science
Abstract
The hetero-interface quality and area in the semiconductor heterostructure are important to the photocatalytic performance of the heterostructure. The 2D hetero-interface between two 2D semiconductors has been widely proved to enhance the photocatalytic performance, because the larger contact area of the hetero-interface can effectively improve the charge separation behavior. However, engineering high-quality 2D multi-hetero-interface in the well-designed semiconductor composite to further enhance the charge separation and utilization is still a big challenge. Herein, we constructed the 2D multi-hetero-interface in the well-designed nanosheet (NS) composite photocatalyst through an in-situ oxidation treatment combined with the electrostatic self-assembly strategy. The negatively-charged binary Ti3C2Tx/(001)TiO2 heterojunction NSs with the intimate 2D contact interface was fabricated through a facile in-situ oxidation method, while the protonated g-C3N4 NSs were positively charged. Thus, the spontaneous electrostatic attraction behavior between the above opposite-charged materials of the Ti3C2Tx/(001)TiO2 heterojunction and the g-C3N4 NSs enables the 2D multi-hetero-interface to be constructed in the Ti3C2Tx/(001)TiO2/C3N4 NSs. As such, the 2D multi-hetero-interface offers broad electron-transfer channels to enhance the charge separation and utilization. Upon simulated sunlight irradiation, the optimal Ti3C2Tx/(001)TiO2/C3N4 NSs achieved about 4-fold enhancement on the photocatalytic H2 generation and 3-fold improvement on the photocatalytic CO2 reduction as compared to the pure (001)TiO2 or g-C3N4 NSs.

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Wu J. et al. Engineering 2D multi-hetero-interface in the well-designed nanosheet composite photocatalyst with broad electron-transfer channels for highly-efficient solar-to-fuels conversion // Applied Catalysis B: Environmental. 2021. Vol. 286. p. 119944.
GOST all authors (up to 50) Copy
Wu J., Lu P., Fang G., Li X., Yu W. W., Zhang Z., Dong B. Engineering 2D multi-hetero-interface in the well-designed nanosheet composite photocatalyst with broad electron-transfer channels for highly-efficient solar-to-fuels conversion // Applied Catalysis B: Environmental. 2021. Vol. 286. p. 119944.
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RIS Copy
TY - JOUR
DO - 10.1016/j.apcatb.2021.119944
UR - https://doi.org/10.1016/j.apcatb.2021.119944
TI - Engineering 2D multi-hetero-interface in the well-designed nanosheet composite photocatalyst with broad electron-transfer channels for highly-efficient solar-to-fuels conversion
T2 - Applied Catalysis B: Environmental
AU - Wu, Jinlei
AU - Lu, Po
AU - Fang, Guoqiang
AU - Li, Xin
AU - Yu, William W.
AU - Zhang, Zhenyi
AU - Dong, Bin
PY - 2021
DA - 2021/06/01 00:00:00
PB - Elsevier
SP - 119944
VL - 286
SN - 0926-3373
SN - 1873-3883
ER -
BibTex
Cite this
BibTex Copy
@article{2021_Wu,
author = {Jinlei Wu and Po Lu and Guoqiang Fang and Xin Li and William W. Yu and Zhenyi Zhang and Bin Dong},
title = {Engineering 2D multi-hetero-interface in the well-designed nanosheet composite photocatalyst with broad electron-transfer channels for highly-efficient solar-to-fuels conversion},
journal = {Applied Catalysis B: Environmental},
year = {2021},
volume = {286},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016/j.apcatb.2021.119944},
pages = {119944},
doi = {10.1016/j.apcatb.2021.119944}
}
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