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Facet Engineered Interface Design of Plasmonic Metal and Cocatalyst on BiOCl Nanoplates for Enhanced Visible Photocatalytic Oxygen Evolution

Integration of plasmonic metal and cocatalyst with semiconductor is a promising approach to simultaneously optimize the generation, transfer, and consumption of photoinduced charge carriers for high‐performance photocatalysis. The photocatalytic activities of the designed hybrid structures are great... Full description

Journal Title: Small October 2017, Vol.13(38), pp.n/a-n/a
Main Author: Bai, Lijie
Other Authors: Ye, Fan , Li, Luna , Lu, Jingjing , Zhong, Shuxian , Bai, Song
Format: Electronic Article Electronic Article
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ID: ISSN: 1613-6810 ; E-ISSN: 1613-6829 ; DOI: 10.1002/smll.201701607
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recordid: wj10.1002/smll.201701607
title: Facet Engineered Interface Design of Plasmonic Metal and Cocatalyst on BiOCl Nanoplates for Enhanced Visible Photocatalytic Oxygen Evolution
format: Article
creator:
  • Bai, Lijie
  • Ye, Fan
  • Li, Luna
  • Lu, Jingjing
  • Zhong, Shuxian
  • Bai, Song
subjects:
  • Cocatalyst
  • Facet
  • Interface
  • Photocatalysis
  • Plasmonics
ispartof: Small, October 2017, Vol.13(38), pp.n/a-n/a
description: Integration of plasmonic metal and cocatalyst with semiconductor is a promising approach to simultaneously optimize the generation, transfer, and consumption of photoinduced charge carriers for high‐performance photocatalysis. The photocatalytic activities of the designed hybrid structures are greatly determined by the efficiencies of charge transfer across the interfaces between different components. In this paper, interface design of Ag‐BiOCl‐PdO hybrid photocatalysts is demonstrated based on the choice of suitable BiOCl facets in depositing plasmonic Ag and PdO cocatalyst, respectively. It is found that the selective deposition of Ag and PdO on BiOCl(110) planes realizes the superior photocatalytic activity in O evolution compared with the samples with other Ag and PdO deposition locations. The reason was the superior hole transfer abilities of Ag‐(110)BiOCl and BiOCl(110)‐PdO interfaces in comparison with those of Ag‐(001)BiOCl and BiOCl(001)‐PdO interfaces. Two effects are proposed to contribute to this enhancement: (1) stronger electronic coupling at the BiOCl(110)‐based interfaces resulted from the thinner contact barrier layer and (2) the shortest average hole diffuse distance realized by Ag and PdO on BiOCl(110) planes. This work represents a step toward the interface design of high‐performance photocatalyst through facet engineering. is performed through depositing plasmonic Ag and PdO cocatalysts on suitable BiOCl facets. Enabled by the superior hole transfer abilities across BiOCl(110)‐based interfaces and the shortest hole transfer distance between Ag and PdO, Ag‐(110)BiOCl(110)‐PdO achieves higher photocatalytic O evolution activity compared with Ag‐BiOCl‐PdO structures with other locations of Ag and PdO.
language:
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identifier: ISSN: 1613-6810 ; E-ISSN: 1613-6829 ; DOI: 10.1002/smll.201701607
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  • 1613-6810
  • 16136810
  • 1613-6829
  • 16136829
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titleFacet Engineered Interface Design of Plasmonic Metal and Cocatalyst on BiOCl Nanoplates for Enhanced Visible Photocatalytic Oxygen Evolution
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descriptionIntegration of plasmonic metal and cocatalyst with semiconductor is a promising approach to simultaneously optimize the generation, transfer, and consumption of photoinduced charge carriers for high‐performance photocatalysis. The photocatalytic activities of the designed hybrid structures are greatly determined by the efficiencies of charge transfer across the interfaces between different components. In this paper, interface design of Ag‐BiOCl‐PdO hybrid photocatalysts is demonstrated based on the choice of suitable BiOCl facets in depositing plasmonic Ag and PdO cocatalyst, respectively. It is found that the selective deposition of Ag and PdO on BiOCl(110) planes realizes the superior photocatalytic activity in O evolution compared with the samples with other Ag and PdO deposition locations. The reason was the superior hole transfer abilities of Ag‐(110)BiOCl and BiOCl(110)‐PdO interfaces in comparison with those of Ag‐(001)BiOCl and BiOCl(001)‐PdO interfaces. Two effects are proposed to contribute to this enhancement: (1) stronger electronic coupling at the BiOCl(110)‐based interfaces resulted from the thinner contact barrier layer and (2) the shortest average hole diffuse distance realized by Ag and PdO on BiOCl(110) planes. This work represents a step toward the interface design of high‐performance photocatalyst through facet engineering. is performed through depositing plasmonic Ag and PdO cocatalysts on suitable BiOCl facets. Enabled by the superior hole transfer abilities across BiOCl(110)‐based interfaces and the shortest hole transfer distance between Ag and PdO, Ag‐(110)BiOCl(110)‐PdO achieves higher photocatalytic O evolution activity compared with Ag‐BiOCl‐PdO structures with other locations of Ag and PdO.
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descriptionIntegration of plasmonic metal and cocatalyst with semiconductor is a promising approach to simultaneously optimize the generation, transfer, and consumption of photoinduced charge carriers for high‐performance photocatalysis. The photocatalytic activities of the designed hybrid structures are greatly determined by the efficiencies of charge transfer across the interfaces between different components. In this paper, interface design of Ag‐BiOCl‐PdO hybrid photocatalysts is demonstrated based on the choice of suitable BiOCl facets in depositing plasmonic Ag and PdO cocatalyst, respectively. It is found that the selective deposition of Ag and PdO on BiOCl(110) planes realizes the superior photocatalytic activity in O evolution compared with the samples with other Ag and PdO deposition locations. The reason was the superior hole transfer abilities of Ag‐(110)BiOCl and BiOCl(110)‐PdO interfaces in comparison with those of Ag‐(001)BiOCl and BiOCl(001)‐PdO interfaces. Two effects are proposed to contribute to this enhancement: (1) stronger electronic coupling at the BiOCl(110)‐based interfaces resulted from the thinner contact barrier layer and (2) the shortest average hole diffuse distance realized by Ag and PdO on BiOCl(110) planes. This work represents a step toward the interface design of high‐performance photocatalyst through facet engineering. is performed through depositing plasmonic Ag and PdO cocatalysts on suitable BiOCl facets. Enabled by the superior hole transfer abilities across BiOCl(110)‐based interfaces and the shortest hole transfer distance between Ag and PdO, Ag‐(110)BiOCl(110)‐PdO achieves higher photocatalytic O evolution activity compared with Ag‐BiOCl‐PdO structures with other locations of Ag and PdO.
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abstractIntegration of plasmonic metal and cocatalyst with semiconductor is a promising approach to simultaneously optimize the generation, transfer, and consumption of photoinduced charge carriers for high‐performance photocatalysis. The photocatalytic activities of the designed hybrid structures are greatly determined by the efficiencies of charge transfer across the interfaces between different components. In this paper, interface design of Ag‐BiOCl‐PdO hybrid photocatalysts is demonstrated based on the choice of suitable BiOCl facets in depositing plasmonic Ag and PdO cocatalyst, respectively. It is found that the selective deposition of Ag and PdO on BiOCl(110) planes realizes the superior photocatalytic activity in O evolution compared with the samples with other Ag and PdO deposition locations. The reason was the superior hole transfer abilities of Ag‐(110)BiOCl and BiOCl(110)‐PdO interfaces in comparison with those of Ag‐(001)BiOCl and BiOCl(001)‐PdO interfaces. Two effects are proposed to contribute to this enhancement: (1) stronger electronic coupling at the BiOCl(110)‐based interfaces resulted from the thinner contact barrier layer and (2) the shortest average hole diffuse distance realized by Ag and PdO on BiOCl(110) planes. This work represents a step toward the interface design of high‐performance photocatalyst through facet engineering. is performed through depositing plasmonic Ag and PdO cocatalysts on suitable BiOCl facets. Enabled by the superior hole transfer abilities across BiOCl(110)‐based interfaces and the shortest hole transfer distance between Ag and PdO, Ag‐(110)BiOCl(110)‐PdO achieves higher photocatalytic O evolution activity compared with Ag‐BiOCl‐PdO structures with other locations of Ag and PdO.
doi10.1002/smll.201701607
pages1-13
date2017-10