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Does noble metal modification improve the photocatalytic activity of BiOCl?

Does noble metal modification improve the photocatalytic activity of BiOCl?
Does noble metal modification improve the photocatalytic activity of BiOCl?
Noble metal-surface-deposited BiOCl photocatalysts were prepared through photo-deposition and used for photodecomposition of Rhodamine B (RhB). The received materials were characterised using X-ray photoemission spectroscopy (XPS), UV–vis diffuse reflectance spectroscopy (UV–vis DRS), and X-ray diffraction (XRD) to understand the influence of surface deposited noble metals. The results showed that the noble metal species on the surface of BiOCl are in metallic state, which also brought about enhanced light absorption in broad UV–vis region due to plasmonic effects induced by the surface-deposited noble metal species. All the samples showed good activity in photodecomposition of RhB under UV-light irradiation, but only Ag/BiOCl was more active than bulk BiOCl. The mechanism of the different reactivity of these noble-metal modified BiOCl was tentatively proposed based on the band structure and the interactions between noble metals and the BiOCl.
photocatalysis, BiOCl, noble metal, rhodamine b, plasmonic effect
1002-0071
286 - 293
Kong, Liang
3098eb13-8e15-4a85-a69a-65a5265a01c8
Jiang, Zheng
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Lai, Henry H.-C.
1050f127-23e8-45e8-b560-93829a8ff744
Xiao, Tiancun
90161b4f-4483-4b4f-8db6-6614b001ac54
Edwards, Peter P.
1c8ab595-549c-4dca-b911-a46a94183e2b
Kong, Liang
3098eb13-8e15-4a85-a69a-65a5265a01c8
Jiang, Zheng
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Lai, Henry H.-C.
1050f127-23e8-45e8-b560-93829a8ff744
Xiao, Tiancun
90161b4f-4483-4b4f-8db6-6614b001ac54
Edwards, Peter P.
1c8ab595-549c-4dca-b911-a46a94183e2b

Kong, Liang, Jiang, Zheng, Lai, Henry H.-C., Xiao, Tiancun and Edwards, Peter P. (2013) Does noble metal modification improve the photocatalytic activity of BiOCl? Progress in Natural Science, 23 (3), 286 - 293. (doi:10.1016/j.pnsc.2013.05.002).

Record type: Article

Abstract

Noble metal-surface-deposited BiOCl photocatalysts were prepared through photo-deposition and used for photodecomposition of Rhodamine B (RhB). The received materials were characterised using X-ray photoemission spectroscopy (XPS), UV–vis diffuse reflectance spectroscopy (UV–vis DRS), and X-ray diffraction (XRD) to understand the influence of surface deposited noble metals. The results showed that the noble metal species on the surface of BiOCl are in metallic state, which also brought about enhanced light absorption in broad UV–vis region due to plasmonic effects induced by the surface-deposited noble metal species. All the samples showed good activity in photodecomposition of RhB under UV-light irradiation, but only Ag/BiOCl was more active than bulk BiOCl. The mechanism of the different reactivity of these noble-metal modified BiOCl was tentatively proposed based on the band structure and the interactions between noble metals and the BiOCl.

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Published date: June 2013
Keywords: photocatalysis, BiOCl, noble metal, rhodamine b, plasmonic effect
Organisations: Faculty of Engineering and the Environment

Identifiers

Local EPrints ID: 355112
URI: http://eprints.soton.ac.uk/id/eprint/355112
ISSN: 1002-0071
PURE UUID: d5b3e317-c7ad-40bd-9aeb-7a06a50262a3
ORCID for Zheng Jiang: ORCID iD orcid.org/0000-0002-7972-6175

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Date deposited: 12 Aug 2013 15:36
Last modified: 03 Dec 2019 01:36

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Contributors

Author: Liang Kong
Author: Zheng Jiang ORCID iD
Author: Henry H.-C. Lai
Author: Tiancun Xiao
Author: Peter P. Edwards

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