Ceramics International, volume 47, issue 12, pages 17210-17219
Z-scheme g-C3N4 nanosheet photocatalyst decorated with mesoporous CdS for the photoreduction of carbon dioxide
2
Advanced Materials Department, Central Metallurgical R&D Institute, CMRDI, P.O. Box 87, Helwan, Cairo, 11421, Egypt
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Publication type: Journal Article
Publication date: 2021-06-01
Journal:
Ceramics International
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 5.2
ISSN: 02728842
Materials Chemistry
Surfaces, Coatings and Films
Ceramics and Composites
Electronic, Optical and Magnetic Materials
Process Chemistry and Technology
Abstract
Herein, novel mesoporous CdS nanoparticle (NP)-incorporated porous g-C 3 N 4 nanosheets with large surface areas and varying CdS NP percentages were constructed for the first time. The synergistic effect of mesoporous CdS NPs and porous g-C 3 N 4 nanosheets indicated effective charge carrier separation and promoted CO 2 photoreduction to form CH 3 OH upon illumination. The highest yield of CH 3 OH over 3% CdS-g-C 3 N 4 heterostructures was determined to be approximately 1735 μmol g −1 , which was 3.8- and 5.50 times greater than those of mesoporous CdS NPs and pristine g-C 3 N 4 nanosheets, respectively. In addition, the mesoporous 3%CdS-g-C 3 N 4 heterostructure showed an outstandingly enhanced CO 2 photoreduction rate of 192.7 μmol g −1 h −1 , which was estimated to be ~4.1 and 5.9- times better than CdS (47.1 μmol g −1 h −1 ) and pristine g-C 3 N 4 (32.6 μmol g −1 h −1 ), respectively. The photoreduction performance was retained at approximately 94.7% after five cycles of illumination for 45 h. The remarkable synthesized mesoporous CdS-g-C 3 N 4 heterostructure played an essential role, with its narrow bandgap and high surface area enabling improved photoinduced carrier separation and a widened range of light absorption. A plausible mechanism for CO 2 photoreduction by the mesoporous CdS-g-C 3 N 4 heterostructure was proposed and verified by photoelectrochemical and photoluminescence measurements.
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Mkhalid I. A. et al. Z-scheme g-C3N4 nanosheet photocatalyst decorated with mesoporous CdS for the photoreduction of carbon dioxide // Ceramics International. 2021. Vol. 47. No. 12. pp. 17210-17219.
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Mkhalid I. A., Mohamed R., Ismail A. A., Alhaddad M. Z-scheme g-C3N4 nanosheet photocatalyst decorated with mesoporous CdS for the photoreduction of carbon dioxide // Ceramics International. 2021. Vol. 47. No. 12. pp. 17210-17219.
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TY - JOUR
DO - 10.1016/j.ceramint.2021.03.032
UR - https://doi.org/10.1016/j.ceramint.2021.03.032
TI - Z-scheme g-C3N4 nanosheet photocatalyst decorated with mesoporous CdS for the photoreduction of carbon dioxide
T2 - Ceramics International
AU - Mkhalid, Ibraheem A
AU - Mohamed, Reda
AU - Ismail, Adel A.
AU - Alhaddad, Maha
PY - 2021
DA - 2021/06/01 00:00:00
PB - Elsevier
SP - 17210-17219
IS - 12
VL - 47
SN - 0272-8842
ER -
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@article{2021_Mkhalid,
author = {Ibraheem A Mkhalid and Reda Mohamed and Adel A. Ismail and Maha Alhaddad},
title = {Z-scheme g-C3N4 nanosheet photocatalyst decorated with mesoporous CdS for the photoreduction of carbon dioxide},
journal = {Ceramics International},
year = {2021},
volume = {47},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016/j.ceramint.2021.03.032},
number = {12},
pages = {17210--17219},
doi = {10.1016/j.ceramint.2021.03.032}
}
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MLA
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Mkhalid, Ibraheem A., et al. “Z-scheme g-C3N4 nanosheet photocatalyst decorated with mesoporous CdS for the photoreduction of carbon dioxide.” Ceramics International, vol. 47, no. 12, Jun. 2021, pp. 17210-17219. https://doi.org/10.1016/j.ceramint.2021.03.032.