Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61156
Title: In situ fabrication of α-Bi2O3/(BiO)2CO3 nanoplate heterojunctions with tunable optical property and photocatalytic activity
Authors: Huang, Y
Wang, W
Zhang, Q
Cao, JJ
Huang, RJ
Ho, W
Lee, SC 
Issue Date: 2016
Publisher: Nature Publishing Group
Source: Scientific reports, 2016, v. 6, 23435 How to cite?
Journal: Scientific reports 
Abstract: Exploring the full potential use of heterojunction photocatalysts containing bismuth has attracted considerable interest in recent years. Fabrication of well-defined heterojunction photocatalysts with precise modulation of their chemical composition is crucial for tuning their optical properties and photocatalytic activity. In this study, we fabricated nanoplate α-Bi2O3/(BiO)2CO3 heterojunctions through in situ thermal treatment of (BiO)2CO3 nanoplates synthesized using a facile hydrothermal process. Characterization results showed that the as-prepared Bi2O3/(BiO)2CO3 heterojunctions possessed distinct crystal interface and exhibited pronounced structural and optical modulation, resulting in significant improvement of their photocatalytic activity for NO removal under simulated solar light irradiation compared with pristine (BiO)2CO3. Electron spin resonance spectroscopy showed that OH radicals were the major reactive species involved in NO degradation, which is consistent with the theoretical analysis. The heterojunction formation can not only broaden the light absorption range but also improve the charge separation of photo-induced electron-hole pairs. This study is an important advancement in the development of semiconductor heterojunctions towards achieving functional photocatalysts.
URI: http://hdl.handle.net/10397/61156
EISSN: 2045-2322
DOI: 10.1038/srep23435
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

12
Last Week
0
Last month
Citations as of Aug 20, 2017

WEB OF SCIENCETM
Citations

11
Last Week
0
Last month
Citations as of Aug 20, 2017

Page view(s)

18
Last Week
3
Last month
Checked on Aug 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.