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In situ Fabrication of alpha-Bi2O3/(BiO)(2)CO3 Nanoplate Heterojunctions with Tunable Optical Property and Photocatalytic Activity
Huang, Yu1,2; Wang, Wei1; Zhang, Qian1; Cao, Jun-ji1,2; Huang, Ru-jin1,2; Ho, Wingkei3; Lee, Shun Cheng4
2016-03-21
Source PublicationSCIENTIFIC REPORTS
Volume6Issue:2016
SubtypeArticle
AbstractExploring 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 alpha-Bi2O3/(BiO)(2)CO3 heterojunctions through in situ thermal treatment of (BiO)(2)CO3 nanoplates synthesized using a facile hydrothermal process. Characterization results showed that the as-prepared Bi2O3/(BiO)(2)CO3 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)(2)CO3. Electron spin resonance spectroscopy showed that center dot 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.
WOS HeadingsScience & Technology
DOI10.1038/srep23435
WOS KeywordVISIBLE-LIGHT PHOTOCATALYSIS ; INDOOR AIR ; MICROSPHERES ; PERFORMANCE ; REMOVAL ; NO ; IRRADIATION ; SURFACE ; N2O
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000372447000002
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5806
Collection粉尘与环境研究室
Affiliation1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China
3.Hong Kong Inst Educ, Dept Sci & Environm Studies, Hong Kong, Hong Kong, Peoples R China
4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Huang, Yu,Wang, Wei,Zhang, Qian,et al. In situ Fabrication of alpha-Bi2O3/(BiO)(2)CO3 Nanoplate Heterojunctions with Tunable Optical Property and Photocatalytic Activity[J]. SCIENTIFIC REPORTS,2016,6(2016).
APA Huang, Yu.,Wang, Wei.,Zhang, Qian.,Cao, Jun-ji.,Huang, Ru-jin.,...&Lee, Shun Cheng.(2016).In situ Fabrication of alpha-Bi2O3/(BiO)(2)CO3 Nanoplate Heterojunctions with Tunable Optical Property and Photocatalytic Activity.SCIENTIFIC REPORTS,6(2016).
MLA Huang, Yu,et al."In situ Fabrication of alpha-Bi2O3/(BiO)(2)CO3 Nanoplate Heterojunctions with Tunable Optical Property and Photocatalytic Activity".SCIENTIFIC REPORTS 6.2016(2016).
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