The DOI matches its Crossref record; 46 of the 46 references it cites were found in a registry or an index.
Faster Electron Injection and More Active Sites for Efficient Photocatalytic H2 Evolution in g‐C3N4/MoS2 Hybrid
Abstract
Herein, the structural effect of MoS 2 as a cocatalyst of photocatalytic H 2 generation activity of g‐C 3 N 4 under visible light irradiation is studied. By using single‐particle photoluminescence (PL) and femtosecond time‐resolved transient absorption spectroscopies, charge transfer kinetics between g‐C 3 N 4 and two kinds of nanostructured MoS 2 (nanodot and monolayer) are systematically investigated. Single‐particle PL results show the emission of g‐C 3 N 4 is quenched by MoS 2 nanodots more effectively than MoS 2 monolayers. Electron injection rate and efficiency of g‐C 3 N 4/MoS 2‐nanodot hybrid are calculated to be 5.96 × 10 9 s−1 and 73.3%, respectively, from transient absorption spectral measurement, which are 4.8 times faster and 2.0 times higher than those of g‐C 3 N 4/MoS 2‐monolayer hybrid. Stronger intimate junction between MoS 2 nanodots and g‐C 3 N 4 is suggested to be responsible for faster and more efficient electron injection. In addition, more unsaturated terminal sulfur atoms can serve as the active site in MoS 2 nanodot compared with MoS 2 monolayer. Therefore, g‐C 3 N 4/MoS 2 nanodot exhibits a 7.9 times higher photocatalytic activity for H 2 evolution (660 µmol g−1 h−1) than g‐C 3 N 4/MoS 2 monolayer (83.8 µmol g−1 h−1). This work provides deep insight into charge transfer between g‐C 3 N 4 and nanostructured MoS 2 cocatalysts, which can open a new avenue for more rationally designing MoS 2‐based catalysts for H 2 evolution.
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Cites
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Cited by
Yuan, Y.-J., Shen, Z., Wu, S., Su, Y., Pei, L., Ji, Z., Ding, M., Bai, W., Chen, Y., Yu, Z.-T., et al. (2019) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2019.01.043 · Cited by 698
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A review on 2D MoS2 cocatalysts in photocatalytic H2 production
Liang, Z., Shen, R., Ng, Y. H., Zhang, P., Xiang, Q., & Li, X. (2020) · Journal of Materials Science & Technology · doi:10.1016/j.jmst.2020.04.032 · Cited by 438
Lian, Y., Sun, H., Wang, X., Qi, P., Mu, Q., Chen, Y., Ye, J., Zhao, X., Deng, Z., & Peng, Y. (2019) · Chemical Science · doi:10.1039/c8sc03877e · Cited by 297
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Metadata
- Authors
- Shi, X., Fujitsuka, M., Kim, S., & Majima, T.
- Venue
- Small
- Publisher
- Wiley
- Published
- 2018-01-26
- Volume
- 14
- Issue
- 11
- Pages
- e1703277-e1703277
- ISSN
- 1613-6810 (ISSN-L)
- 1613-6829
- OpenAlex
- W2790377082
- Cited by
- 258
- References
- 46
- FWCI
- 8.77
- Type
- journal article
- Language
- en
- Open access
- closed
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