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Ag Nanoparticle-Induced Oxidative Dimerization of Thiophenols: Efficiency and Mechanism

文献类型：期刊论文

作者Li, Huanhuan6; Si, Mengting2,6; Liu, Lihua5; Chu, Xiangqian6; Wang, Shuai6; Wan, Lei1; Yan, Rong4; Sun, Mengtao3; Fang, Yingcui6
刊名LANGMUIR
出版日期2018-09-25
卷号34期号:38页码:11347-11353
ISSN号0743-7463
DOI10.1021/acs.langmuir.8b02068
通讯作者Sun, Mengtao() ; Fang, Yingcui(ycfang@hfut.edu.cn)
英文摘要By oxidation of silver nanoparticles (AgNPs) in two ways: thermal oxidation (TO) in molecular oxygen and cool oxidation in oxygen plasma (i.e., oxygen plasma irradiation, OPI), the efficiency and mechanism of visible light-induced selective transformation of 4-aminothiophenol (PATP) to 4,4'-dimercaptoazobenzene (DMAB) on the surface of AgNPs was explored. On the basis of the evolution of surface-enhanced Raman scattering (SERS) spectrum of PATP (10(-5) M in ethanol) with the oxidation time, it can be concluded that OPI could improve the selective transformation efficiency (eta) effectively, by 87 times for only 2 s; whereas TO could improve eta conditionally, increasing at first and then decreasing gradually to zero. The results imply that silver oxide is not the root cause of the increased eta. Combined with the results of SERS of oxygen species on the surface of AgNPs processed by the abovementioned two ways, superoxide (O-2(-)) and electrophilic oxygen atoms (O-) are suggested to be responsible for this selective transformation. Our study deepens the understanding of the mechanism of plasmonic photocatalysis and the role of silver oxide in selection transformation of organic molecules.
WOS关键词ETHYLENE EPOXIDATION ; OXYGEN ACTIVATION ; PLASMON ; SILVER ; PHOTOCATALYSIS ; CATALYSIS ; OXIDE ; NANOSTRUCTURES ; PROMOTERS ; AG(111)
资助项目Natural Science Foundation of Anhui Province[1708085MA11] ; National Natural Science Foundation of China[11674081] ; Fundamental Research Funds for the Central Universities
WOS研究方向Chemistry ; Materials Science
语种英语
WOS记录号WOS:000445972000014
出版者AMER CHEMICAL SOC
资助机构Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/39144]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Sun, Mengtao; Fang, Yingcui
作者单位1.Hefei Univ Technol, Sch Elect Engn & Automat, Hefei 230009, Anhui, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China
3.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
4.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
5.Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China
6.Hefei Univ Technol, Dept Vacuum Sci & Technol, Hefei 230009, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Li, Huanhuan,Si, Mengting,Liu, Lihua,et al. Ag Nanoparticle-Induced Oxidative Dimerization of Thiophenols: Efficiency and Mechanism[J]. LANGMUIR,2018,34(38):11347-11353.
APA Li, Huanhuan.,Si, Mengting.,Liu, Lihua.,Chu, Xiangqian.,Wang, Shuai.,...&Fang, Yingcui.(2018).Ag Nanoparticle-Induced Oxidative Dimerization of Thiophenols: Efficiency and Mechanism.LANGMUIR,34(38),11347-11353.
MLA Li, Huanhuan,et al."Ag Nanoparticle-Induced Oxidative Dimerization of Thiophenols: Efficiency and Mechanism".LANGMUIR 34.38(2018):11347-11353.

入库方式： OAI收割

来源：合肥物质科学研究院

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