Probing the light harvesting and charge rectification of bismuth nanoparticles behind the promoted photoreactivity onto Bi/BiOCl catalyst by (in-situ) electron microscopy

Chang, Xiaofeng, Xie, Lin, Sha, Wei E. I., Lu, Kun, Qi, Qi, Dong, Chenyu, Yan, Xingxu, Gondal, Mohammed A., Rashid, Siddique G., Dai, Qi I., Zhang, Wen, Yang, Longqi, Qiao, Xingdu, Mao, Liang and Wang, Peng (2017) Probing the light harvesting and charge rectification of bismuth nanoparticles behind the promoted photoreactivity onto Bi/BiOCl catalyst by (in-situ) electron microscopy. Applied Catalysis B: Environmental, 201 495-502. doi:10.1016/j.apcatb.2016.08.049

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ408452_OA.pdf Full text (open access) application/pdf 1.46MB 0

Author Chang, Xiaofeng
Xie, Lin
Sha, Wei E. I.
Lu, Kun
Qi, Qi
Dong, Chenyu
Yan, Xingxu
Gondal, Mohammed A.
Rashid, Siddique G.
Dai, Qi I.
Zhang, Wen
Yang, Longqi
Qiao, Xingdu
Mao, Liang
Wang, Peng
Title Probing the light harvesting and charge rectification of bismuth nanoparticles behind the promoted photoreactivity onto Bi/BiOCl catalyst by (in-situ) electron microscopy
Journal name Applied Catalysis B: Environmental   Check publisher's open access policy
ISSN 0926-3373
1873-3883
Publication date 2017-02-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.apcatb.2016.08.049
Open Access Status File (Author Post-print)
Volume 201
Start page 495
End page 502
Total pages 8
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Language eng
Subject 1503 Catalysis
2300 Environmental Science
1508 Process Chemistry and Technology
Abstract State-of-the-art electron microscopy has enabled us to investigate microstructural details down to sub-subångström and milli-electron-volt resolution level. The enhanced photoreactivity over bismuth hybridized BiOCl catalyst (Bi/BiOCl) has been reported recently, however, the mechanistic understandings of this improved photoreactivity especially the optical behavior of bismuth nanoparticles (Bi NPs) are still obscured and in debate. The optical absorption features of Bi NPs and the charge transfer characteristic between bismuth and BiOCl have been considered as the major physicochemical origin for the promoted photoreactivity. Based on the advanced (in-situ) electron microscopy of monochromated electron energy loss spectroscopy in scanning transmission electron microscopy imaging mode (Mono-STEM-EELS) along with related theoretical investigations, in this work, we for the first time distinguished and explained the optical absorption originated from the localized surface plasmon resonances (LSPR) effect and direct band gap transition in an individual bismuth nanoparticle as well as transportation of photogenerated carriers at the interface of Bi/BiOCl. These findings could provide better understandings about the origin of the improved photoreactivity of various bismuth-hybridized photocatalysts.
Keyword BiOCl
Bismuth
Electron microscopy
Monochromated EELS
Photocatalytic
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID 21377049 | 11474147 | 51302132 | 51407029
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Chemistry and Molecular Biosciences
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 5 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 6 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 11 Oct 2016, 10:24:28 EST by System User on behalf of Learning and Research Services (UQ Library)