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The effect of indium doping on the hydrogen evolution performance of g-C3N4 based photocatalysts.
- Source :
-
New Journal of Chemistry . 1/14/2021, Vol. 45 Issue 2, p544-550. 7p. - Publication Year :
- 2021
-
Abstract
- Doping graphitic carbon nitride (g-C3N4) with metal ions has been developed as a facile approach to improve its visible light photocatalytic performance towards hydrogen evolution via water splitting. In this work, a series of In3+ doped g-C3N4 (In-g-C3N4) photocatalysts were prepared via in situ thermal copolymerization by using a mixture of dicyanamide and InCl3 as precursors. It was proposed, for the first time, that the In3+ ions were doped into g-C3N4 in a unique quasi-interlayer fashion, which contributed to tunable separation efficiency and migration ability of the photogenerated carriers by simply adjusting the amount of In3+ doping without changing the band edge of g-C3N4. The In-g-C3N4 photocatalyst doped with an optimal amount of indium ions, i.e., 2.18 wt%, exhibited a hydrogen evolution rate of 1.35 mmol h−1 g−1, 17 times that of pristine g-C3N4 (0.08 mmol h−1 g−1), attributed to the synergistically promoted separation and migration of the photogenerated charge carriers. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NITRIDES
*INDIUM
*PHOTOCATALYSTS
*HYDROGEN
*VISIBLE spectra
*METAL ions
Subjects
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 45
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 148187466
- Full Text :
- https://doi.org/10.1039/d0nj04854b