Chemical Engineering Journal, volume 400, pages 125868

2D/2D/2D O-C3N4/Bt/Ti3C2Tx heterojunction with novel MXene/clay multi-electron mediator for stimulating photo-induced CO2 reforming to CO and CH4

Publication typeJournal Article
Publication date2020-11-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor15.1
ISSN13858947, 03009467
General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering
Environmental Chemistry
Abstract
Controlled fabrication of Ti3C2 MXene with unique topology and layered bentonite (Bt) nanoclay to construct a 2D/2D/2D g-C3N4/Bt/Ti3C2 MXene heterojunction for intriguing photocatalytic CO2 reduction has been investigated. The MXene/Bt composite exhibits high-light absorption and faster charges separation and transportation. The photoactivity of 2D/2D Ti3C2/g-C3N4 of 1.38 folds higher than bulk Ti3AlC2/g-C3N4 obtained due to intimate interface interaction with proficient charges separation. The highest g-C3N4/Bt/Ti3C2 heterojunction activity for CH4 evolution of 4.18, 4.42 and 6.96 folds more was achieved compared with g-C3N4/Ti3C3, Bt/g-C3N4 and g-C3N4, respectively. This boosted activity was evidently due to Ti3C2/g-C3N4 Schottky junction with Bt-mediator to provide new electron transfer channels. More interestingly, with proton rich acetic-acid reagent, 4.15 folds more CH4 production than using only water under prolonged stability was observed. Thus, this study provides a promising approach for clean energy system and potential applications of MXenes/Bt materials for solar fuels production.

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Tahir M. Z., Tahir B. 2D/2D/2D O-C3N4/Bt/Ti3C2Tx heterojunction with novel MXene/clay multi-electron mediator for stimulating photo-induced CO2 reforming to CO and CH4 // Chemical Engineering Journal. 2020. Vol. 400. p. 125868.
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Tahir M. Z., Tahir B. 2D/2D/2D O-C3N4/Bt/Ti3C2Tx heterojunction with novel MXene/clay multi-electron mediator for stimulating photo-induced CO2 reforming to CO and CH4 // Chemical Engineering Journal. 2020. Vol. 400. p. 125868.
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RIS Copy
TY - JOUR
DO - 10.1016/j.cej.2020.125868
UR - https://doi.org/10.1016/j.cej.2020.125868
TI - 2D/2D/2D O-C3N4/Bt/Ti3C2Tx heterojunction with novel MXene/clay multi-electron mediator for stimulating photo-induced CO2 reforming to CO and CH4
T2 - Chemical Engineering Journal
AU - Tahir, Muhammad Z.
AU - Tahir, Beenish
PY - 2020
DA - 2020/11/01 00:00:00
PB - Elsevier
SP - 125868
VL - 400
SN - 1385-8947
SN - 0300-9467
ER -
BibTex
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BibTex Copy
@article{2020_Tahir,
author = {Muhammad Z. Tahir and Beenish Tahir},
title = {2D/2D/2D O-C3N4/Bt/Ti3C2Tx heterojunction with novel MXene/clay multi-electron mediator for stimulating photo-induced CO2 reforming to CO and CH4},
journal = {Chemical Engineering Journal},
year = {2020},
volume = {400},
publisher = {Elsevier},
month = {nov},
url = {https://doi.org/10.1016/j.cej.2020.125868},
pages = {125868},
doi = {10.1016/j.cej.2020.125868}
}
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