ACS applied materials & interfaces, volume 9, issue 33, pages 27773-27783

Fabrication of Heterogeneous-Phase Solid-Solution Promoting Band Structure and Charge Separation for Enhancing Photocatalytic CO2 Reduction: A Case of ZnXCa1–XIn2S4

Publication typeJournal Article
Publication date2017-08-09
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.5
ISSN19448244, 19448252
General Materials Science
Abstract
Photocatalytic CO2 reduction into solar fuels illustrates huge charm for simultaneously settling energy and environmental issues. The photoreduction ability of a semiconductor is closely correlated to its conduction band (CB) position. A homogeneous-phase solid-solution with the same crystal system always has a monotonously changed CB position, and the high CB level has to be sacrificed to achieve a benign photoabsorption. Herein, we report the fabrication of heterogeneous-phase solid-solution ZnXCa1-XIn2S4 between trigonal ZnIn2S4 and cubic CaIn2S4. The ZnXCa1-XIn2S4 solid solutions with orderly tuned photoresponsive range from 540 to 640 nm present a more negative CB level and highly enhanced charge-separation efficiency. Profiting from these merits, all of these ZnXCa1-XIn2S4 solid solutions exhibit remarkably strengthened photocatalytic CO2 reduction performance under visible light (λ > 420 nm) irradiation. Zn0.4Ca0.6In2S4, bearing the most negative CB position and highest charge-separation efficiency, casts the optimal photocatalytic CH4 and CO evolution rates, which reach 16.7 and 6.8 times higher than that of ZnIn2S4 and 7.2 and 3.9 times higher than that of CaIn2S4, respectively. To verify the crucial role of the heterogeneous-phase solid solution in promoting the band structure and photocatalytic performance, another heterogeneous-phase solid-solution ZnXCd1-XIn2S4 has been synthesized. It also displays an upshifted CB level and promoted charge separation. This work may provide a new perspective into the development of an efficient visible-light driven photocatalyst for CO2 reduction and other photoreduction reactions.

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Zeng C. et al. Fabrication of Heterogeneous-Phase Solid-Solution Promoting Band Structure and Charge Separation for Enhancing Photocatalytic CO2 Reduction: A Case of ZnXCa1–XIn2S4 // ACS applied materials & interfaces. 2017. Vol. 9. No. 33. pp. 27773-27783.
GOST all authors (up to 50) Copy
Zeng C., Huang H., Zhang T., Fan D., Zhang Y., Hu Y. Fabrication of Heterogeneous-Phase Solid-Solution Promoting Band Structure and Charge Separation for Enhancing Photocatalytic CO2 Reduction: A Case of ZnXCa1–XIn2S4 // ACS applied materials & interfaces. 2017. Vol. 9. No. 33. pp. 27773-27783.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/acsami.7b08767
UR - https://doi.org/10.1021/acsami.7b08767
TI - Fabrication of Heterogeneous-Phase Solid-Solution Promoting Band Structure and Charge Separation for Enhancing Photocatalytic CO2 Reduction: A Case of ZnXCa1–XIn2S4
T2 - ACS applied materials & interfaces
AU - Fan, Dong
AU - Huang, Hongwei
AU - Zhang, Tierui
AU - Zhang, Yihe
AU - Hu, Yingmo
AU - Zeng, Chao
PY - 2017
DA - 2017/08/09 00:00:00
PB - American Chemical Society (ACS)
SP - 27773-27783
IS - 33
VL - 9
SN - 1944-8244
SN - 1944-8252
ER -
BibTex |
Cite this
BibTex Copy
@article{2017_Zeng,
author = {Dong Fan and Hongwei Huang and Tierui Zhang and Yihe Zhang and Yingmo Hu and Chao Zeng},
title = {Fabrication of Heterogeneous-Phase Solid-Solution Promoting Band Structure and Charge Separation for Enhancing Photocatalytic CO2 Reduction: A Case of ZnXCa1–XIn2S4},
journal = {ACS applied materials & interfaces},
year = {2017},
volume = {9},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/acsami.7b08767},
number = {33},
pages = {27773--27783},
doi = {10.1021/acsami.7b08767}
}
MLA
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MLA Copy
Zeng, Chao, et al. “Fabrication of Heterogeneous-Phase Solid-Solution Promoting Band Structure and Charge Separation for Enhancing Photocatalytic CO2 Reduction: A Case of ZnXCa1–XIn2S4.” ACS applied materials & interfaces, vol. 9, no. 33, Aug. 2017, pp. 27773-27783. https://doi.org/10.1021/acsami.7b08767.
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