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Post-illumination activity of Bi2WO6 in the dark from the photocatalytic "memory" effect

文献类型：期刊论文

作者Yang, Weiyi2; Chen, Yan3; Gao, Shuang2; Sang, Licheng1,3; Tao, Ruoge4; Sun, Caixia5,6; Shang, Jian Ku3; Li, Qi2
刊名JOURNAL OF ADVANCED CERAMICS
出版日期2021-02-10
页码13
关键词Bi2WO6 photocatalytic “ memory” effect energy storage release activity in the dark stability
ISSN号2226-4108
DOI10.1007/s40145-020-0448-8
通讯作者Li, Qi(qiliuiuc@outlook.com)
英文摘要Photocatalysts with the photocatalytic "memory" effect could resolve the intrinsic activity loss of traditional photocatalysts when the light illumination is turned off. Due to the dual requirements of light absorption and energy storage/release functions, most previously reported photocatalysts with the photocatalytic "memory" effect were composite photocatalysts of two phase components, which may lose their performance due to gradually deteriorated interface conditions during their applications. In this work, a simple solvothermal process was developed to synthesize Bi2WO6 microspheres constructed by aggregated nanoflakes. The pure phase Bi2WO6 was found to possess the photocatalytic "memory" effect through the trapping and release of photogenerated electrons by the reversible chemical state change of W component in the (WO4)(2-) layers. When the illumination was switched off, Bi2WO6 microspheres continuously produced H2O2 in the dark as those trapped photogenerated electrons were gradually released to react with O-2 through the two-electron O-2 reduction process, resulting in the continuous disinfection of Escherichia coli bacteria in the dark through the photocatalytic "memory" effect. No deterioration of their cycling H2O2 production performance in the dark was observed, which verified their stable photocatalytic "memory" effect.
资助项目National Natural Science Foundation of China[51672283] ; National Natural Science Foundation of China[51602316] ; National Natural Science Foundation of China[51902271] ; Fundamental Research Funds for the Central Universities[A1920502051907-15] ; Fundamental Research Funds for the Central Universities[2682020CX07] ; Fundamental Research Funds for the Central Universities[2682020CX08] ; Sichuan Science and Technology Program[2020YJ0259] ; Sichuan Science and Technology Program[2020YJ0072] ; Shenyang National Laboratory for Materials Science[18LHPY009] ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals[18LHPY009] ; Liaoning Baiqianwan Talents Program ; Natural Science Foundation of Liaoning Province of China[20180510042] ; Natural Science Foundation of Shandong Province, China[ZR2017MEM017]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000616453300001
出版者SPRINGER
资助机构National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Sichuan Science and Technology Program ; Shenyang National Laboratory for Materials Science ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals ; Liaoning Baiqianwan Talents Program ; Natural Science Foundation of Liaoning Province of China ; Natural Science Foundation of Shandong Province, China
源URL[http://ir.imr.ac.cn/handle/321006/160459]  
专题金属研究所_中国科学院金属研究所
通讯作者Li, Qi
作者单位1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
2.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
4.Northeast Yucai Sch, Shenyang 110179, Peoples R China
5.Qingdao Binhai Univ, Key Lab New Metall Funct Mat & Adv Surface Engn U, Qingdao 266555, Peoples R China
6.Qingdao Binhai Univ, Sch Mech & Elect Engn, Qingdao 266555, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Weiyi,Chen, Yan,Gao, Shuang,et al. Post-illumination activity of Bi2WO6 in the dark from the photocatalytic "memory" effect[J]. JOURNAL OF ADVANCED CERAMICS,2021:13.
APA Yang, Weiyi.,Chen, Yan.,Gao, Shuang.,Sang, Licheng.,Tao, Ruoge.,...&Li, Qi.(2021).Post-illumination activity of Bi2WO6 in the dark from the photocatalytic "memory" effect.JOURNAL OF ADVANCED CERAMICS,13.
MLA Yang, Weiyi,et al."Post-illumination activity of Bi2WO6 in the dark from the photocatalytic "memory" effect".JOURNAL OF ADVANCED CERAMICS (2021):13.

入库方式： OAI收割

来源：金属研究所

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