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AAO Template-Assisted Fabrication of Ordered Ag Nanoparticles-Decorated Au Nanotubes Array for Surface-Enhanced Raman Scattering Detection

文献类型：期刊论文

作者Sun, Kexi1,2; Deng, Quan3; Tang, Haibin2,4
刊名SUSTAINABILITY
出版日期2022-02-01
卷号14
关键词AAO Au nanotube Ag nanoparticles funnel-shaped pore SERS
DOI10.3390/su14031305
通讯作者Tang, Haibin(hbtang@issp.ac.cn)
英文摘要Highly sensitive and reproducible surface-enhanced Raman scattering (SERS) substrates are the main challenge for practical applications. In this work, an ordered and hierarchical Ag nanoparticles (Ag-NPs)-decorated Au nanotubes (Au-NTs) array was achieved based on a funnel-shaped pore anodic aluminum oxide (AAO) template-assisted strategy. First, funnel-pore-AAO templates were fabricated by further oxidation of conical-pore-AAO templates achieved by multistep anodization and etching. Then physical sputtering was used to assemble the Au-NTs and Ag-NPs using the as-prepared funnel-pore-AAO as sacrificial templates. SEM revealed abundant sub-10 nm neighboring gaps and sub-10 nm nanocavities at the bottom of the nanotubes because of the special shape of the AAO template, which resulted in abundant strong "hot spots" contributing to the sensitive SERS detection. The resultant hierarchical substrates manifested a SERS enhancement factor of 1.8 x 10(7) and reproducible response to 10(-11) M rhodamine 6G and 10(-8) M methyl parathion, showing potential in SERS-based rapid detection of trace pollutants in the environment.
WOS关键词NANOROD ARRAYS ; SERS ; SUBSTRATE ; STUCK
资助项目National Natural Science Foundation of China[51972308] ; National Natural Science Foundation of China[51801093] ; [Natural Science Foundation of Anhui Province][2008085ME171] ; [Natural Science Foundation of Anhui Province][201903a07020021]
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000756544800001
出版者MDPI
资助机构National Natural Science Foundation of China ; [Natural Science Foundation of Anhui Province]
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/127509]  
专题中国科学院合肥物质科学研究院
通讯作者Tang, Haibin
作者单位1.Luoyang Normal Univ, Key Lab Elect Transformat & Detect Henan Prov, Coll Phys & Elect Informat, Luoyang 471934, Peoples R China
2.Chinese Acad Sci, Key Lab Mat Phys & Anhui Key Lab Nanomat & Techno, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China
3.Chinese Acad Sci, HFIPS, Inst Plasma Phys, Hefei 230031, Peoples R China
4.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Kexi,Deng, Quan,Tang, Haibin. AAO Template-Assisted Fabrication of Ordered Ag Nanoparticles-Decorated Au Nanotubes Array for Surface-Enhanced Raman Scattering Detection[J]. SUSTAINABILITY,2022,14.
APA Sun, Kexi,Deng, Quan,&Tang, Haibin.(2022).AAO Template-Assisted Fabrication of Ordered Ag Nanoparticles-Decorated Au Nanotubes Array for Surface-Enhanced Raman Scattering Detection.SUSTAINABILITY,14.
MLA Sun, Kexi,et al."AAO Template-Assisted Fabrication of Ordered Ag Nanoparticles-Decorated Au Nanotubes Array for Surface-Enhanced Raman Scattering Detection".SUSTAINABILITY 14(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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