The DOI matches its Crossref record; 47 of the 47 references it cites were found in a registry or an index.
Visible Photocatalytic Water Splitting and Photocatalytic Two-Electron Oxygen Formation over Cu- and Fe-Doped g-C3N4
Abstract
Water splitting via two two-electron processes (the H 2 O first photocatalytically converted to H 2 and H 2 O 2 under visible light irradiation and then the H 2 O 2 disproportionation to H 2 O and O 2 by a thermal catalytic process) has attracted extensive attention recently.1,2 Contrary to these reports, we found that not only the photocatalytic H 2 generation could be driven by visible light but also the two-electron H 2 O 2 disproportionation to form H 2 O and O 2 could also be photocatalyzed by visible light over g-C 3 N 4 catalysts. Photocatalytic H 2, O 2 generation, and simultaneous H 2 O 2 formation in Cu/C 3 N 4 and Fe/C 3 N 4 dispersions were confirmed, about 2.1 and 1.4 μmol of H 2 and 0.8 and 0.5 μmol of O 2 evolved over Cu/C 3 N 4 and Fe/C 3 N 4 in 12 h, respectively. To prove the photocatalytic process of H 2 O 2 disproportionation, the H 2 O 2 was added as a reagent in g-C 3 N 4, Cu/C 3 N 4, and Fe/C 3 N 4 dispersions. The results showed that the activity of H 2 evolution decreased with the increase of H 2 O 2 concentration; the corresponding AQEs of oxygen formation were 16.1%, 42.6%, and 78.5% at 400 nm, respectively. The remarkable increase of anodic photocurrents over Fe/C 3 N 4 /ITO and Cu/C 3 N 4 /ITO electrodes indicated that the two-electron H 2 O 2 disproportionation was catalyzed via surface photocatalytic mechanism. The ESR results implied reaction occurred by O 2 – · radical path over g-C 3 N 4 under irradiation.
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Cites
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A Perovskite Oxide Optimized for Oxygen Evolution Catalysis from Molecular Orbital Principles
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Metal-free efficient photocatalyst for stable visible water splitting via a two-electron pathway
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In Situ Formation of an Oxygen-Evolving Catalyst in Neutral Water Containing Phosphate and Co 2+
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Crystal structure of oxygen-evolving photosystem II at a resolution of 1.9 Å
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Polymeric Photocatalysts Based on Graphitic Carbon Nitride
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Unique Electronic Structure Induced High Photoreactivity of Sulfur-Doped Graphitic C3N4
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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
Yan, W., Yan, L., & Jing, C. (2019) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2018.11.069 · Cited by 367
Chen, Z., Savateev, A., Pronkin, S., Papaefthimiou, V., Wolff, C., Willinger, M. G., Willinger, E., Neher, D., Antonietti, M., & Dontsova, D. (2017) · Advanced Materials · doi:10.1002/adma.201700555 · Cited by 363
Al Abass, N., Qahtan, T. F., Gondal, M. A., & Bubshait, A. (2021) · International Journal of Energy Research · doi:10.1002/er.6824 · Cited by 5
Metadata
- Authors
- Li, Z., Kong, C., & Lu, G.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-12-22
- Volume
- 120
- Issue
- 1
- Pages
- 56-63
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2232912761
- Cited by
- 304
- References
- 47
- FWCI
- 9.38
- Type
- journal article
- Language
- en
- Open access
- closed
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