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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
发表期刊SCIENTIFIC REPORTS
卷号6期号:2016
文章类型Article
摘要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 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标题词Science & Technology
DOI10.1038/srep23435
关键词[WOS]VISIBLE-LIGHT PHOTOCATALYSIS ; INDOOR AIR ; MICROSPHERES ; PERFORMANCE ; REMOVAL ; NO ; IRRADIATION ; SURFACE ; N2O
收录类别SCI
语种英语
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000372447000002
引用统计
被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5806
专题粉尘与环境研究室
作者单位1.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
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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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