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Construction and Nanoscale Detection of Interfacial Charge Transfer of Elegant Z-Scheme WO/Au/InS Nanowire Arrays

Elegant Z-scheme WO/Au/InS nanowire arrays were precisely constructed through a facile step-by-step route. Surface potential change on pristine or InS-Au coated WO single nanowire under dark and illumination detected through a Kelvin probe force microscopy (KPFM) technique indicates that the vectori... Full description

Journal Title: Nano letters 03 August 2016, pp.
Main Author: Li, Haijin
Other Authors: Gao, Yuying , Zhou, Yong , Fan, Fengtao , Han, Qiutong , Xu, Qinfeng , Wang, Xiaoyong , Xiao, Min , Li, Can , Zou, Zhigang
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: MEDLINE/PubMed (U.S. National Library of Medicine)
ID: E-ISSN: 1530-6992 ; PMID: 27487234 Version:1
Link: http://pubmed.gov/27487234
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recordid: medline27487234
title: Construction and Nanoscale Detection of Interfacial Charge Transfer of Elegant Z-Scheme WO/Au/InS Nanowire Arrays
format: Article
creator:
  • Li, Haijin
  • Gao, Yuying
  • Zhou, Yong
  • Fan, Fengtao
  • Han, Qiutong
  • Xu, Qinfeng
  • Wang, Xiaoyong
  • Xiao, Min
  • Li, Can
  • Zou, Zhigang
subjects:
  • Kelvin Probe Force Microscopy
  • Z-Scheme
  • Interfacial Charge Transfer
  • Photocatalysts
ispartof: Nano letters, 03 August 2016, pp.
description: Elegant Z-scheme WO/Au/InS nanowire arrays were precisely constructed through a facile step-by-step route. Surface potential change on pristine or InS-Au coated WO single nanowire under dark and illumination detected through a Kelvin probe force microscopy (KPFM) technique indicates that the vectorial holes transfer of InS → Au → WO should occur upon the excitation of both WO and InS. In such charge transfer processes, the embedded Au nanoparticles in the heterojunction systems act as a charge mediator for electrons in the conduction band of WO and holes in the valence band of InS. The strong charge carrier separation ability of this structure will finally enhance the oxidation ability of WO with high concertation of photogenerated holes and, further, leave the free electrons in the InS with long surviving time. Therefore, the unique Z-scheme WO/Au/InS heterostructure shows great visible-light activity toward photocatalytic reduction of CO in the presence of water vapor into renewable hydrocarbon...
language: eng
source: MEDLINE/PubMed (U.S. National Library of Medicine)
identifier: E-ISSN: 1530-6992 ; PMID: 27487234 Version:1
fulltext: fulltext
issn:
  • 15306992
  • 1530-6992
url: Link


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titleConstruction and Nanoscale Detection of Interfacial Charge Transfer of Elegant Z-Scheme WO/Au/InS Nanowire Arrays
creatorLi, Haijin ; Gao, Yuying ; Zhou, Yong ; Fan, Fengtao ; Han, Qiutong ; Xu, Qinfeng ; Wang, Xiaoyong ; Xiao, Min ; Li, Can ; Zou, Zhigang
ispartofNano letters, 03 August 2016, pp.
identifierE-ISSN: 1530-6992 ; PMID: 27487234 Version:1
subjectKelvin Probe Force Microscopy ; Z-Scheme ; Interfacial Charge Transfer ; Photocatalysts
descriptionElegant Z-scheme WO/Au/InS nanowire arrays were precisely constructed through a facile step-by-step route. Surface potential change on pristine or InS-Au coated WO single nanowire under dark and illumination detected through a Kelvin probe force microscopy (KPFM) technique indicates that the vectorial holes transfer of InS → Au → WO should occur upon the excitation of both WO and InS. In such charge transfer processes, the embedded Au nanoparticles in the heterojunction systems act as a charge mediator for electrons in the conduction band of WO and holes in the valence band of InS. The strong charge carrier separation ability of this structure will finally enhance the oxidation ability of WO with high concertation of photogenerated holes and, further, leave the free electrons in the InS with long surviving time. Therefore, the unique Z-scheme WO/Au/InS heterostructure shows great visible-light activity toward photocatalytic reduction of CO in the presence of water vapor into renewable hydrocarbon...
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abstractElegant Z-scheme WO/Au/InS nanowire arrays were precisely constructed through a facile step-by-step route. Surface potential change on pristine or InS-Au coated WO single nanowire under dark and illumination detected through a Kelvin probe force microscopy (KPFM) technique indicates that the vectorial holes transfer of InS → Au → WO should occur upon the excitation of both WO and InS. In such charge transfer processes, the embedded Au nanoparticles in the heterojunction systems act as a charge mediator for electrons in the conduction band of WO and holes in the valence band of InS. The strong charge carrier separation ability of this structure will finally enhance the oxidation ability of WO with high concertation of photogenerated holes and, further, leave the free electrons in the InS with long surviving time. Therefore, the unique Z-scheme WO/Au/InS heterostructure shows great visible-light activity toward photocatalytic reduction of CO in the presence of water vapor into renewable hydrocarbon...
pmid27487234
date2016-08-03