TiO2-supported Ag nanoclusters with enhanced visible light activity for the photocatalytic removal of NO
文献类型：期刊论文
| 作者 | Shah, Muhammad Wajid; Wang CY(王传义); Chen ZH(陈志鸿); Wang F(王富); Mao, Xinyou; Zhou, Shaochen; Luo, Jianmin; Duan, Yanyan; Xiong JF(熊俊峰)
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| 刊名 | Applied Catalysis B: Environmental
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| 出版日期 | 2018 |
| 卷号 | 234页码:206-212 |
| 关键词 | Supported Ag nanoclusters Photocatalysis NO removal Selective degradation Visible light |
| ISSN号 | 0926-3373 |
| 产权排序 | 1 |
| 通讯作者 | Wang F(王富) ; Chen ZH(陈志鸿) ; Wang CY(王传义) |
| 中文摘要 | Metal nanoparticles have been widely used in photocatalysis, while metal nanoclusters (NCs) smaller than 2 nm are barely studied for photocatalytic reactions. In this work, we explored the photocatalytic performances of the TiO2supported Ag NCs (Ag NCs/TiO2). Interestingly, small loading amount (about 0.89% in Ag/Ti molar ratio) of Ag NCs on TiO2(Ag NCs/TiO2-0.89) results in remarkable improvement in the photoactivity of NO removal. Ag NCs/TiO2-0.89 can remove 62% of NO in just 7 min, compared to that of only about 20% and 32% for the pristine TiO2and Ag NCs, respectively. Besides, the support (TiO2) exhibits a strong effect, and Ag NCs/TiO2-0.89 is found to exhibit excellent stability and recyclability. More importantly, the composite can depress the amount of formed intermediate, NO2. In addition, Ag NCs/TiO2-0.89 has better photocatalytic performance against rhodamine B and methylene blue (cationic dyes) than methyl orange (anionic dye). This selectivity towards cationic dyes is interpreted by the electronegativity of AgNCs/TiO2-0.89 (the Zeta potential of which is – 12.4 mV). Results also show that Ag NCs can behavior like a semiconductor, responding to the incident visible-light, promoting the separation of photogenerated electron-hole pairs and producing [rad]O2−. Both [rad]O2−and photogenerated carriers are responsible for the photocatalytic reactions. The present study expands applications of Ag NCs, and highlights the vital effects of Ag NCs on the enhanced photoactivity and photocatalytic selectivity. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | FLUORESCENT SILVER NANOCLUSTERS ; QUANTUM CLUSTER ; HIGHLY EFFICIENT ; HIGH SELECTIVITY ; NITROGEN-OXIDES ; CO OXIDATION ; TIO2 ; DEGRADATION ; CATALYSTS ; POLYMER |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000433650000021 |
| 源URL | [http://ir.sia.cn/handle/173321/21818]  |
| 专题 | 沈阳自动化研究所_机器人学研究室 |
| 作者单位 | 1.Shenyang Institute of Automation, Guangzhou, Chinese Academy of Sciences, Guangzhou 511458, China 2.MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China 3.Laboratory of Environmental Science and Technology, The Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China |
| 推荐引用方式 GB/T 7714 | Shah, Muhammad Wajid,Wang CY,Chen ZH,et al. TiO2-supported Ag nanoclusters with enhanced visible light activity for the photocatalytic removal of NO[J]. Applied Catalysis B: Environmental,2018,234:206-212. |
| APA | Shah, Muhammad Wajid.,Wang CY.,Chen ZH.,Wang F.,Mao, Xinyou.,...&熊俊峰.(2018).TiO2-supported Ag nanoclusters with enhanced visible light activity for the photocatalytic removal of NO.Applied Catalysis B: Environmental,234,206-212. |
| MLA | Shah, Muhammad Wajid,et al."TiO2-supported Ag nanoclusters with enhanced visible light activity for the photocatalytic removal of NO".Applied Catalysis B: Environmental 234(2018):206-212. |
入库方式： OAI收割
来源：沈阳自动化研究所
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