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MoS2/CdS Heterojunction with High Photoelectrochemical Activity for H2 Evolution under Visible Light: The Role of MoS2
Abstract
MoS 2 /CdS p-n heterojunction films with high photoelectrochemical activity for H 2 evolution under visible light were successfully prepared by electrodeposition followed by chemical bath deposition. The films were characterized by X-ray diffraction, scanning electron microscopy, UV–visible absorption, X-ray photoemission spectroscopy, photoluminescence, and photoelectrochemical response. The MoS 2 /CdS heterostructure shows much higher visible-light photoelectrocatalytic activity and higher stability toward the water splitting than pure CdS film. The MoS 2 /CdS film with an optimal ratio of 0.14% exhibits the highest photocurrent of 28 mA/cm 2 and the highest IPCE of ca. 28% at 420 nm at 0 V vs Ag/AgCl. The critical role of MoS 2 in the MoS 2 /CdS film was investigated. The improved photoelectrochemical performance of the MoS 2 /CdS heterojunction film was attributed to the visible light absorption enhanced by MoS 2 and the formation of a p-n junction between CdS and MoS 2, which accelerates the effective separation of photogenerated carriers by the internal electrostatic field in the junction region.
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Chen, Z., Cummins, D., Reinecke, B. N., Clark, E., Sunkara, M. K., & Jaramillo, T. F. (2011) · Nano Letters · doi:10.1021/nl2020476 · Cited by 1,153
Photocatalytic H2 Evolution on MoS2/CdS Catalysts under Visible Light Irradiation
Zong, X., Wu, G., Yan, H., Ma, G., Shi, J., Wen, F., Wang, L., & Li, C. (2010) · The Journal of Physical Chemistry C · doi:10.1021/jp904350e · Cited by 408
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Benck, J. D., Hellstern, T. R., Kibsgaard, J., Chakthranont, P., & Jaramillo, T. F. (2014) · ACS Catalysis · doi:10.1021/cs500923c · Cited by 1,617
MoS2/Graphene Cocatalyst for Efficient Photocatalytic H2 Evolution under Visible Light Irradiation
Chang, K., Mei, Z., Wang, T., Kang, Q., Ouyang, S., & Ye, J. (2014) · ACS Nano · doi:10.1021/nn5019945 · Cited by 953
Cadmium sulfide-based nanomaterials for photocatalytic hydrogen production
Yuan, Y.-J., Chen, D., Yu, Z.-T., & Zou, Z.-G. (2018) · Journal of Materials Chemistry A · doi:10.1039/c8ta00671g · Cited by 523
He, Z., & Que, W. (2016) · Applied Materials Today · doi:10.1016/j.apmt.2016.02.001 · Cited by 438
Chang, K., Li, M., Wang, T., Ouyang, S., Li, P., Liu, L., & Ye, J. (2015) · Advanced Energy Materials · doi:10.1002/aenm.201402279 · Cited by 276
Jia, L., Sun, X., Jiang, Y., Yu, S., & Wang, C. (2015) · Advanced Functional Materials · doi:10.1002/adfm.201401814 · Cited by 178
Photocatalytic H 2 evolution on MoS 2 –TiO 2 catalysts synthesized via mechanochemistry
Zhu, Y., Ling, Q., Liu, Y., Wang, H., & Zhu, Y. (2015) · Physical Chemistry Chemical Physics · doi:10.1039/c4cp04628e · Cited by 170
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Metadata
- Authors
- Liu, Y., Yu, Y.-X., & Zhang, W.-D.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-06-18
- Volume
- 117
- Issue
- 25
- Pages
- 12949-12957
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2327037001
- Cited by
- 433
- References
- 2
- FWCI
- 14.67
- Type
- journal article
- Language
- en
- Open access
- closed
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