ACS Applied Energy Materials, volume 3, issue 7, pages 6422-6433

Synthesis of the g-C3N4/CdS Nanocomposite with a Chemically Bonded Interface for Enhanced Sunlight-Driven CO2 Photoreduction

Nhu Nang Vu 1
S. Kaliaguine 1
Trong-On Do 1
1
 
Department of Chemical Engineering, Laval University, 1065 Avenue de la Médecine, Quebec City, Québec G1V 0A6, Canada
Publication typeJournal Article
Publication date2020-06-17
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor6.4
ISSN25740962, 25740962
Materials Chemistry
Electrochemistry
Electrical and Electronic Engineering
Energy Engineering and Power Technology
Chemical Engineering (miscellaneous)
Abstract
The work, herein, reports a simple approach for the synthesis of the g-C3N4/CdS nanocomposite. The high pressure NH3 and H2S, which is created by the polycondensation of thiourea, processes simultaneously the gas-induced lysis to fracture the carbon nitride framework, and the sulfidation of adsorbed Cd precursor to form CdS nanoparticles (NPs) with high crystallinity on the surface of the modified carbon nitride structure. These processes synchronously alter the fragmentation mechanism of the carbon nitride framework and shift the crystal grow orientation of the CdS NPs. Importantly, they result in the creation of the C–S–Cd bridges that induce an intimate chemically bonded interface between g-C3N4 and CdS NPs. The heterostructure coupled with this chemically bonded interface favors effective charge separation and transfer. The as-prepared nanocomposite photocatalyst exhibits an efficient sunlight-driven photoreduction of CO2 into CO, which are superior to those of the g-C3N4 material and CdS NPs alone, in the presence of the metal–organic complex as a co-catalyst. CO selectivity is greatly enhanced, as compared to the g-C3N4 material, indicating the critical role of CdS NPs in the composite to promote the interaction with the co-catalyst, thus enhancing the CO2 reduction and decreasing the side reaction of the H2 evolution.

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Vu N. N., Kaliaguine S., Do T. Synthesis of the g-C3N4/CdS Nanocomposite with a Chemically Bonded Interface for Enhanced Sunlight-Driven CO2 Photoreduction // ACS Applied Energy Materials. 2020. Vol. 3. No. 7. pp. 6422-6433.
GOST all authors (up to 50) Copy
Vu N. N., Kaliaguine S., Do T. Synthesis of the g-C3N4/CdS Nanocomposite with a Chemically Bonded Interface for Enhanced Sunlight-Driven CO2 Photoreduction // ACS Applied Energy Materials. 2020. Vol. 3. No. 7. pp. 6422-6433.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/acsaem.0c00656
UR - https://doi.org/10.1021/acsaem.0c00656
TI - Synthesis of the g-C3N4/CdS Nanocomposite with a Chemically Bonded Interface for Enhanced Sunlight-Driven CO2 Photoreduction
T2 - ACS Applied Energy Materials
AU - Vu, Nhu Nang
AU - Kaliaguine, S.
AU - Do, Trong-On
PY - 2020
DA - 2020/06/17 00:00:00
PB - American Chemical Society (ACS)
SP - 6422-6433
IS - 7
VL - 3
SN - 2574-0962
SN - 2574-0962
ER -
BibTex |
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BibTex Copy
@article{2020_Vu,
author = {Nhu Nang Vu and S. Kaliaguine and Trong-On Do},
title = {Synthesis of the g-C3N4/CdS Nanocomposite with a Chemically Bonded Interface for Enhanced Sunlight-Driven CO2 Photoreduction},
journal = {ACS Applied Energy Materials},
year = {2020},
volume = {3},
publisher = {American Chemical Society (ACS)},
month = {jun},
url = {https://doi.org/10.1021/acsaem.0c00656},
number = {7},
pages = {6422--6433},
doi = {10.1021/acsaem.0c00656}
}
MLA
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MLA Copy
Vu, Nhu Nang, et al. “Synthesis of the g-C3N4/CdS Nanocomposite with a Chemically Bonded Interface for Enhanced Sunlight-Driven CO2 Photoreduction.” ACS Applied Energy Materials, vol. 3, no. 7, Jun. 2020, pp. 6422-6433. https://doi.org/10.1021/acsaem.0c00656.
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