The DOI matches its Crossref record; 47 of the 47 references it cites were found in a registry or an index.
Enhanced Photocatalytic H2O2 Production over Carbon Nitride by Doping and Defect Engineering
Abstract
Photocatalytic production of H 2 O 2 from the reduction of O 2 by semiconductor photocatalysts (e.g., graphitic carbon nitride, C 3 N 4 ) has been regarded as an alternative for small-scale decentralized H 2 O 2 production. However, the efficiency of pristine C 3 N 4 photocatalysts is still limited by the narrow light absorption range and rapid charge recombination. Here, we presented a facile approach to simultaneously enhance the light absorption and promote the charge separation by introducing alkali metal dopants and N vacancies on C 3 N 4 . The introduction of alkali metal dopants and N vacancies successfully broadened the light absorption range, reduced the band gap from 2.85 to 2.63 eV, and greatly inhibited the charge recombination. The synergistic effect of doping and defect resulted in the improvement of photocatalytic performance with a H 2 O 2 production rate of 10.2 mmol/h/g, which is 89.5 times that of pristine C 3 N 4 . Thus, this work not only gives insights into the synergistic effect of doping and defect for simultaneously manipulating the light absorption and charge separation processes but also inspires further work to develop more efficient photocatalysts for H 2 O 2 production.
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Cites
Hydrogen Peroxide Synthesis: An Outlook beyond the Anthraquinone Process
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Self-citationProduction of Hydrogen Peroxide by Photocatalytic Processes
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Atomic-level tuning of Co–N–C catalyst for high-performance electrochemical H2O2 production
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Toward the Decentralized Electrochemical Production of H2O2: A Focus on the Catalysis
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Cited by
The advanced development of floatable photocatalysts: Preparation, advantages, and application
Liu, X., Pan, J., Huang, H., Zhang, X., Sun, N., Gu, C., Zhuang, Y., & Wang, L. (2023) · Chemical Engineering Journal · doi:10.1016/j.cej.2023.146868 · Cited by 35
Metadata
- Authors
- Wu, S., Yu, H., Chen, S., & Quan, X.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-11-24
- Volume
- 10
- Issue
- 24
- Pages
- 14380-14389
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W3109221284
- Cited by
- 466
- References
- 47
- FWCI
- 11.47
- Type
- journal article
- Language
- en
- Open access
- closed
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