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

doi:10.1021/acs.langmuir.8b02068

	Ag Nanoparticle-Induced Oxidative Dimerization of Thiophenols: Efficiency and Mechanism
	Li, Huanhuan 1; Si, Mengting 1,6; Liu, Lihua 2; Chu, Xiangqian 1; Wang, Shuai 1; Wan, Lei 3; Yan, Rong4 ; Sun, Mengtao 5; Fang, Yingcui 1
	2018-09-25
发表期刊	LANGMUIR
ISSN	0743-7463
通讯作者	Sun, Mengtao() ; Fang, Yingcui(ycfang@hfut.edu.cn)
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.
DOI	10.1021/acs.langmuir.8b02068
关键词[WOS]	ETHYLENE EPOXIDATION ; OXYGEN ACTIVATION ; PLASMON ; SILVER ; PHOTOCATALYSIS ; CATALYSIS ; OXIDE ; NANOSTRUCTURES ; PROMOTERS ; AG(111)
收录类别	SCI
语种	英语
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 ; Natural Science Foundation of Anhui Province[1708085MA11] ; National Natural Science Foundation of China[11674081] ; Fundamental Research Funds for the Central Universities
项目资助者	Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; 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 ; 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 ; 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 ; 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 ; 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 ; 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
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000445972000014
出版者	AMER CHEMICAL SOC
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/39144
专题	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, Dept Vacuum Sci & Technol, Hefei 230009, Anhui, Peoples R China 2.Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China 3.Hefei Univ Technol, Sch Elect Engn & Automat, Hefei 230009, Anhui, Peoples R China 4.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 5.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China 6.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, 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.