Applied Catalysis B: Environmental, volume 268, pages 118738
2D/2D Ti3C2 MXene/g-C3N4 nanosheets heterojunction for high efficient CO2 reduction photocatalyst: Dual effects of urea
Chao Yang
1
,
Qiuyan Tan
1
,
Qin Li
1
,
Jie Zhou
2
,
Jiajie Fan
3
,
Bing Li
4
,
Jie Sun
1
,
Kangle Lv
1
2
Department of Urology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430061, China
|
Publication type: Journal Article
Publication date: 2020-07-01
Journal:
Applied Catalysis B: Environmental
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 22.1
ISSN: 09263373, 18733883
Catalysis
Process Chemistry and Technology
General Environmental Science
Abstract
• An ultrathin 2D/2D Ti 3 C 2 /g-C 3 N 4 heterojunction is synthesized by a one-pot strategy. • Urea works both as the gas template for exfoliating Ti 3 C 2 and the precursor of g-C 3 N 4 . • Ti 3 C 2 stimulates the transfer of photo-generated electron-hole pairs, retarding the recombination. • 2D/2D Ti 3 C 2 /g-C 3 N 4 heterojunction boosts the photoreactivity of g-C 3 N 4 for CO 2 reduction. In this paper, an ultrathin 2D/2D Ti 3 C 2 /g-C 3 N 4 heterojunction was synthesized by direct calcination the mixture of bulk Ti 3 C 2 and urea, where urea not only acts as the gas template to exfoliate Ti 3 C 2 into nanosheets, but also as the precursor of g-C 3 N 4 to craft Ti 3 C 2 /g-C 3 N 4 heterojunction. CO 2 photoreduction activity tests reveal that pure g-C 3 N 4 (UCN) exhibits very weak photoactivity. However, when Ti 3 C 2 was coupled with g-C 3 N 4 , the photocatalytic performance is soaringly enhanced. The optimal sample (10TC) shows the yields of 5.19 and 0.044 μmol h −1 g −1 for CO and CH 4 , respectively, and the total CO 2 conversion is 8.1 times higher than that of UCN. The enhanced CO 2 photoreduction activity is mainly attributed to the combined effects of (1) improved CO 2 adsorption and activation, and (2) the construction of ultrathin 2D/2D Ti 3 C 2 /g-C 3 N 4 heterojunction, where the intimate contact stimulates an efficient spatial separation of photo-excited charge carriers.
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Citations by publishers
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1 publication, 0.22%
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1 publication, 0.22%
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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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Yang C. et al. 2D/2D Ti3C2 MXene/g-C3N4 nanosheets heterojunction for high efficient CO2 reduction photocatalyst: Dual effects of urea // Applied Catalysis B: Environmental. 2020. Vol. 268. p. 118738.
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Yang C., Tan Q., Li Q., Zhou J., Fan J., Li B., Sun J., Lv K. 2D/2D Ti3C2 MXene/g-C3N4 nanosheets heterojunction for high efficient CO2 reduction photocatalyst: Dual effects of urea // Applied Catalysis B: Environmental. 2020. Vol. 268. p. 118738.
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TY - JOUR
DO - 10.1016/j.apcatb.2020.118738
UR - https://doi.org/10.1016/j.apcatb.2020.118738
TI - 2D/2D Ti3C2 MXene/g-C3N4 nanosheets heterojunction for high efficient CO2 reduction photocatalyst: Dual effects of urea
T2 - Applied Catalysis B: Environmental
AU - Yang, Chao
AU - Tan, Qiuyan
AU - Li, Qin
AU - Zhou, Jie
AU - Fan, Jiajie
AU - Li, Bing
AU - Sun, Jie
AU - Lv, Kangle
PY - 2020
DA - 2020/07/01 00:00:00
PB - Elsevier
SP - 118738
VL - 268
SN - 0926-3373
SN - 1873-3883
ER -
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@article{2020_Yang,
author = {Chao Yang and Qiuyan Tan and Qin Li and Jie Zhou and Jiajie Fan and Bing Li and Jie Sun and Kangle Lv},
title = {2D/2D Ti3C2 MXene/g-C3N4 nanosheets heterojunction for high efficient CO2 reduction photocatalyst: Dual effects of urea},
journal = {Applied Catalysis B: Environmental},
year = {2020},
volume = {268},
publisher = {Elsevier},
month = {jul},
url = {https://doi.org/10.1016/j.apcatb.2020.118738},
pages = {118738},
doi = {10.1016/j.apcatb.2020.118738}
}