Insight into the Photocatalytic Removal of NO in Air over Nanocrystalline Bi2Sn2O7 under Simulated Solar Light
文献类型：期刊论文
| 作者 | Lee, Shun Cheng4; Lu, Yanfeng1,3; Huang, Yu2,3; Cao, Jun-ji2,3; Ho, Wingkei3,5; Zhang, Qian3; Zhu, Dandan3 |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2016-10-12 |
| 卷号 | 55期号:40页码:10609-10617 |
| DOI | 10.1021/acs.iecr.6b02514 |
| 文献子类 | Article |
| 英文摘要 | Understanding the photocatalytic conversion mechanism of NO is crucial to develop an effective and practical strategy for indoor air pollution control. In this study, we systematically investigated the photocatalytic removal mechanism of NO over nanocrystalline Bi2Sn2O7, which was successfully synthesized via hydrothermal method using bismuth citrate and stannic chloride pentahydrate as precursors for the first time. Various characterizations were carried out to study the physicochemical properties of the as-prepared samples. The performance of the as-prepared Bi2Sn2O7 samples was evaluated by the photocatalytic degradation of NO in a continuous reactor under simulated solar light irradiation. The NO removal rate over the Bi2Sn2O7 sample synthesized for 12 h (BSO-12) was 37%, which was much higher than those of Bi2Sn2O7 samples synthesized for 24 h (BSO-24) and 36 h (BSO-36). Results from photocurrent tests and electrochemical impedance spectroscopy (EIS) demonstrated that the BSO-12 sample presents much more effective interface charge separation efficiency, which can contribute to its improved photocatalytic performance. Reactive radicals during the photocatalysis processes were identified via trapping experiments, which were also confirmed by electron spin resonance (ESR) study. Combined with the quantification of reaction intermediates, the photocatalytic removal mechanism of NO over nanocrystalline Bi2Sn2O7 was proposed for the first time. |
| WOS关键词 | VISIBLE-LIGHT ; PHOTOPHYSICAL PROPERTIES ; TITANIUM-DIOXIDE ; PARTICLE-SIZE ; INDOOR AIR ; TIO2 ; MICROSPHERES ; SEMICONDUCTOR ; DEGRADATION ; IRRADIATION |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000385470000011 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5653]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China 5.Hong Kong Inst Educ, Dept Sci & Environm Studies, Hong Kong, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lee, Shun Cheng,Lu, Yanfeng,Huang, Yu,et al. Insight into the Photocatalytic Removal of NO in Air over Nanocrystalline Bi2Sn2O7 under Simulated Solar Light[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2016,55(40):10609-10617. |
| APA | Lee, Shun Cheng.,Lu, Yanfeng.,Huang, Yu.,Cao, Jun-ji.,Ho, Wingkei.,...&Zhu, Dandan.(2016).Insight into the Photocatalytic Removal of NO in Air over Nanocrystalline Bi2Sn2O7 under Simulated Solar Light.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,55(40),10609-10617. |
| MLA | Lee, Shun Cheng,et al."Insight into the Photocatalytic Removal of NO in Air over Nanocrystalline Bi2Sn2O7 under Simulated Solar Light".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 55.40(2016):10609-10617. |
入库方式： OAI收割
来源：地球环境研究所
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