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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¨C9782 |
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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 ×÷Õß: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 ¾í: 5 ÆÚ: 13 Ò³: 9771-9782 DOI: 10.1039/c4ra15349a ³ö°æÄê: 2015 ²é¿´ÆÚ¿¯ÐÅÏ¢ RSC ADVANCES JCR® Àà±ð JCR ·ÖÇø CHEMISTRY, MULTIDISCIPLINARY Q1 Êý¾ÝÀ´×ÔµÚ 2013 °æ Journal Citation Reports® ³ö°æÉÌ ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND ISSN: 2046-2069 Ñо¿ÁìÓò Chemistry ÕªÒª 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. ¹Ø¼ü´Ê KeyWords Plus:SUPPORTED GOLD NANOPARTICLES; HYDROGEN-PRODUCTION; AROMATIC ALCOHOLS; AEROBIC OXIDATION; DOPED TIO2; IRRADIATION; OXIDE; ALDEHYDES; BI2WO6; SEMICONDUCTOR ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Yang, J (ͨѶ×÷Õß) Henan Polytech Univ, Inst Appl Chem, Jiaozuo 454003, Peoples R China. ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Henan Polytech University µØÖ·: [ 1 ] Henan Polytech Univ, Inst Appl Chem, Jiaozuo 454003, Peoples R China ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Henan Polytech University µç×ÓÓʼþµØÖ·:yangjuanhpu@yahoo.com; daijun@hpu.edu.cn »ù½ð×ÊÖúÖÂл »ù½ð×ÊÖú»ú¹¹ ÊÚȨºÅ National Natural Science Foundation of China 21307027 51074067 Foundation of Henan Educational Committee 2010B150009 ²é¿´»ù½ð×ÊÖúÐÅÏ¢¹Ø±Õ»ù½ð×ÊÖúÐÅÏ¢ This work was supported by the National Natural Science Foundation of China (21307027, 51074067) and the Foundation of Henan Educational Committee (2010B150009). ³ö°æÉÌ ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND Àà±ð / ·ÖÀà Ñо¿·½Ïò:Chemistry Web of Science Àà±ð:Chemistry, Multidisciplinary ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000347976500059 ISSN: 2046-2069 ÆÚ¿¯ÐÅÏ¢ Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports® ÆäËûÐÅÏ¢ IDS ºÅ: AZ1BY Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 54 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 |
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