Photo-induced synthesis of nanostructured Pt-on-Au/g-C3N4 composites for visible light photocatalytic hydrogen production

Nanostructured semiconductor composites are often considered as types of promising photocatalysts and display great prospects in visible light photocatalytic hydrogen production. In this work, nanostructured Pt-on-Au/PCN composites were synthesized by photo-induced synthesis strategy with exfoliated...

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Veröffentlicht in:Journal of materials science Jg. 55; H. 32; S. 15574 - 15587
Hauptverfasser: Tang, Yanting, Huang, Jielin, Jiang, Manxiang, Yu, Jinpeng, Wang, Qi, Zhao, Jingjing, Li, Juan, Yu, Xin, Zhao, Junwei
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York Springer US 01.11.2020
Springer Nature B.V
Schlagworte:
absorption
Bimetals
Carbon nitride
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composite materials
Crystallography and Scattering Methods
Electromagnetic absorption
Energy Materials
Gold
Hydrogen
Hydrogen production
Light
Materials Science
nanosheets
Nanostructure
Photocatalysis
photocatalysts
Platinum
Polymer Sciences
semiconductors
Solid Mechanics
Synthesis
ISSN:0022-2461, 1573-4803
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Zusammenfassung:Nanostructured semiconductor composites are often considered as types of promising photocatalysts and display great prospects in visible light photocatalytic hydrogen production. In this work, nanostructured Pt-on-Au/PCN composites were synthesized by photo-induced synthesis strategy with exfoliated g-C 3 N 4 (PCN) nanosheets as starting materials and served in visible light photocatalytic hydrogen production. The prepared Pt-on-Au/PCN composites showed enhanced visible light absorption and photocatalytic hydrogen production performance. The visible light photocatalytic performance of Pt-on-Au/PCN composites is approximately 54.60 times of pristine g-C 3 N 4 and 3.61 times of Pt/g-C 3 N 4 composites, respectively. These findings could be mainly attributed to the formation of bimetal Pt-on-Au nanostructure for visible light harvesting and charge separation. Besides, possible photocatalytic mechanism of nanostructured Pt-on-Au/PCN composites for hydrogen production is proposed in detail. Current work also offers a new method to design and synthesize other types of metal-on-metal nanostructures for efficient semiconductor photocatalysis.
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ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-020-05120-5