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Facile synthesis of interlocking g-C3N4/CdS photoanode for stable photoelectrochemical hydrogen production.
- Source :
-
Electrochimica Acta . Jul2018, Vol. 279, p74-83. 10p. - Publication Year :
- 2018
-
Abstract
- A simple and facile two-step method, including electrophoretic deposition and chemical bath deposition strategies, has been used to fabricate a novel interlocking g-C 3 N 4 /CdS photoanode on conductive substrate. Integrating a large area of intercontact g-C 3 N 4 /CdS heterojunction with an intimate connection between the photocatalysts and the substrate, the separation and migration of the photogenerated carriers by g-C 3 N 4 and CdS are significantly improved, and the internal resistance of the photoanode is effectively reduced. The optimal g-C 3 N 4 /CdS photoanode exhibits an excellent visible light photocurrent density of 5.4 mA cm -2 at 0.0 V bias ( vs. Ag/AgCl) and the photoelectrochemical H 2 production rate reaches 81.1 μmol h -1 cm -2 . Moreover, the stability of this interlocking g-C 3 N 4 /CdS photoanode not only reflects in a 9-hour long time recycling photoelectrochemical H 2 production test, but also in an outstanding steady structure which even be stabilized in an ultrasonic treatment. The present study provides a practical and convenient technique to develop such an earth abound and low-cost CdS/C 3 N 4 photoanode which can be used for high efficiency and stable photoelectrochemical solar energy conversion. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 279
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 129923559
- Full Text :
- https://doi.org/10.1016/j.electacta.2018.05.076