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Au/PtO nanoparticle-modified g-C3N4 for plasmon-enhanced photocatalytic hydrogen evolution under visible light.
- Source :
-
Journal of Colloid & Interface Science . Jan2016, Vol. 461, p56-63. 8p. - Publication Year :
- 2016
-
Abstract
- Photocatalytic hydrogen evolution under visible light is of great potential for renewable energy development. In this work, unalloyed Au/PtO nanoparticle (NP) co-modified graphitic carbon nitride (g-C 3 N 4 ) photocatalyst is fabricated through a simple photodeposition method. The obtained g-C 3 N 4 composites with co-existed Au and PtO cocatalysts exhibit a considerable enhancement in the photocatalytic hydrogen evolution activity and possess good stability during cycling experiments. The optimal Au–PtO/g-C 3 N 4 photocatalyst shows a H 2 production rate of 16.9 μmol h −1 , which exceeds that of PtO/g-C 3 N 4 and Au/g-C 3 N 4 by a factor of 1.5 and 10.6, respectively. Further characterizations demonstrate that the synergetic action of electron-sink and catalytic effects of PtO along with surface plasmon resonance (SPR) effect of Au NPs, greatly improves the photocatalytic performance of g-C 3 N 4 under visible light. Our study should bring in new insight into the design of effective g-C 3 N 4 -based photocatalysts for solar-to-fuel conversion. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00219797
- Volume :
- 461
- Database :
- Academic Search Index
- Journal :
- Journal of Colloid & Interface Science
- Publication Type :
- Academic Journal
- Accession number :
- 110324831
- Full Text :
- https://doi.org/10.1016/j.jcis.2015.08.076