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Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C3N4 Coupled with CdS Quantum Dots
Abstract
Novel CdS quantum dot (QD)-coupled graphitic carbon nitride (g-C 3 N 4 ) photocatalysts were synthesized via a chemical impregnation method and characterized by X-ray diffraction, transmission electron microscopy, ultraviolet–visible diffuse reflection spectroscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and photoluminescence spectroscopy. The effect of CdS content on the rate of visible light photocatalytic hydrogen evolution was investigated for different CdS loadings using platinum as a cocatalyst in methanol aqueous solutions. The synergistic effect of g-C 3 N 4 and CdS QDs leads to efficient separation of the photogenerated charge carriers and, consequently, enhances the visible light photocatalytic H 2 production activity of the materials. The optimal CdS QD content is determined to be 30 wt %, and the corresponding H 2 evolution rate was 17.27 μmol·h –1 under visible light irradiation, ∼9 times that of pure g-C 3 N 4 . A possible photocatalytic mechanism of the CdS/g-C 3 N 4 composite is proposed and corroborated by photoluminescence spectroscopy and photoelectrochemical curves.
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Cites
Semiconductor-based Photocatalytic Hydrogen Generation
Chen, X., Shen, S., Guo, L., & Mao, S. S. (2010) · Chemical Reviews · doi:10.1021/cr1001645 · Cited by 7,876
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
Cited by
Ong, W.-J., Tan, L.-L., Ng, Y. H., Yong, S.-T., & Chai, S.-P. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00075 · Cited by 7,147
Chen, S., Hu, Y., Meng, S., & Fu, X. (2014) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2013.12.053 · Cited by 678
Ge, L., Han, C., Xiao, X., & Guo, L. (2013) · International Journal of Hydrogen Energy · doi:10.1016/j.ijhydene.2013.04.006 · Cited by 401
Self-citationLi, W., Feng, C., Dai, S., Yue, J., Hua, F., & Hou, H. (2015) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2015.01.012 · Cited by 344
Jiang, D., Li, J., Xing, C., Zhang, Z., Meng, S., & Chen, M. (2015) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.5b05118 · Cited by 328
Metadata
- Authors
- Ge, L., Zuo, F., Liu, J., Ma, Q., Wang, C., Sun, D., Bartels, L., & Feng, P.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-06-18
- Volume
- 116
- Issue
- 25
- Pages
- 13708-13714
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2084257955
- Cited by
- 704
- References
- 2
- FWCI
- 18.95
- Type
- journal article
- Language
- en
- Open access
- closed
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- Ge, L., Zuo, F., Liu, J., Ma, Q., Wang, C., Sun, D., Bartels, L., & Feng, P. (2012). Synthesis and Efficient Visible Light Photocatalytic Hydrogen Evolution of Polymeric g-C3N4 Coupled with CdS Quantum Dots. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp3041692
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