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Juan Yang, * Xiaohan Wang, Yumei Chen, Jun Dai * and Shihao Sun Enhanced photocatalytic activities of visible-light driven green synthesis in water and environmental remediation on Au/Bi2WO6 hybrid nanostructures RSC Adv., 2015, 5, 9771–9782 |
版主 (文學泰斗)
風雪
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https://apps.webofknowledge.com/ ... age=1&doc=1 Enhanced photocatalytic activities of visible-light driven green synthesis in water and environmental remediation on Au/Bi2WO6 hybrid nanostructures 作者:Yang, J (Yang, Juan)[ 1 ] ; Wang, XH (Wang, Xiaohan)[ 1 ] ; Chen, YM (Chen, Yumei)[ 1 ] ; Dai, J (Dai, Jun)[ 1 ] ; Sun, SH (Sun, Shihao)[ 1 ] RSC ADVANCES 卷: 5 期: 13 頁: 9771-9782 DOI: 10.1039/c4ra15349a 出版年: 2015 查看期刊信息 RSC ADVANCES JCR® 類別 JCR 分區(qū) CHEMISTRY, MULTIDISCIPLINARY Q1 數(shù)據(jù)來自第 2013 版 Journal Citation Reports® 出版商 ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND ISSN: 2046-2069 研究領域 Chemistry 摘要 A series of Au/Bi2WO6 nanocomposites with different weight ratios of Au were fabricated via a hydrothermal combined with a rapid reduction-deposition method. Au/Bi2WO6 nanocomposites are proven to serve as selective visible light photocatalysts toward aerobic oxidation of benzylic alcohols and reduction of heavy ions Cr(VI), instead of being nonselective in water. Loading Au NPs greatly enhances the photocatalytic activity of Bi2WO6 for the selective oxidation of alcohols and reduction of heavy metal ions. The enhancing effect is dependent on the weight ratios of Au to Bi2WO6 in the hybrid nanostructures. The optimal catalysts for alcohol oxidation and Cr(VI) reduction are 2.0 wt% and 1.0 wt% Au/Bi2WO6, respectively. Furthermore, we find that loading Au results in an obvious increase in photo-induced generation of charge carriers and active radicals determined by electron spin resonance spectroscopy (ESR). ESR signals denoting photogenerated holes and catalytic activity of alcohol oxidation have a similar dependence on the amounts of Au loading. Besides, the generation and transfer of photogenerated electrons induced by Au loading, as well as the relationship with the photocatalytic activity of Cr(VI) reduction, have been examined using photoelectrochemical characterization. The possible roles of Au deposition in improving the photocatalytic redox activity of Bi2WO6 are also discussed. 關鍵詞 KeyWords Plus:SUPPORTED GOLD NANOPARTICLES; HYDROGEN-PRODUCTION; AROMATIC ALCOHOLS; AEROBIC OXIDATION; DOPED TIO2; IRRADIATION; OXIDE; ALDEHYDES; BI2WO6; SEMICONDUCTOR 作者信息 通訊作者地址: Yang, J (通訊作者) Henan Polytech Univ, Inst Appl Chem, Jiaozuo 454003, Peoples R China. 增強組織信息的名稱 Henan Polytech University 地址: [ 1 ] Henan Polytech Univ, Inst Appl Chem, Jiaozuo 454003, Peoples R China 增強組織信息的名稱 Henan Polytech University 電子郵件地址:yangjuanhpu@yahoo.com; daijun@hpu.edu.cn 基金資助致謝 基金資助機構 授權號 National Natural Science Foundation of China 21307027 51074067 Foundation of Henan Educational Committee 2010B150009 查看基金資助信息關閉基金資助信息 This work was supported by the National Natural Science Foundation of China (21307027, 51074067) and the Foundation of Henan Educational Committee (2010B150009). 出版商 ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND 類別 / 分類 研究方向:Chemistry Web of Science 類別:Chemistry, Multidisciplinary 文獻信息 文獻類型:Article 語種:English 入藏號: WOS:000347976500059 ISSN: 2046-2069 期刊信息 Impact Factor (影響因子): Journal Citation Reports® 其他信息 IDS 號: AZ1BY Web of Science 核心合集中的 "引用的參考文獻": 54 Web of Science 核心合集中的 "被引頻次": 0 |
版主 (文學泰斗)
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