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Silver nanotriangles-loaded filter paper for ultrasensitive SERS detection application benefited by interspacing of sharp edges
文献类型：期刊论文
| 作者 | Wang, C (Wang, Chong); Liu, BX (Liu, Bingxin); Dou, XC (Dou, Xincun)
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| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2016 |
| 卷号 | 231期号:8页码:357-364 |
| 关键词 | SERS Silver nanoparticles Explosives detection |
| 通讯作者 | Dou, XC |
| 英文摘要 | The strongly enhanced electromagnetic "hotspots" from the edges and tips of nanoplates are highly preferred to significantly promote the surface enhanced Raman scattering (SERS) activity. Here, Ag nanotriangles with a sharp edge of 20 nm were prepared by the reduction of AgNO3 using N,N-Dimethylformamide (DMF) with the assistance of Polyvinyl pyrrolidone (PVP). By loading of Ag nanotriangles onto the filter paper, a flexible SERS substrate with good activity and reproducibility was obtained and the ultratrace detection of p-aminothiophenol (pATP) with a concentration as low as 10(-8) M was achieved. The sharp edges and tips boosted SERS activity was proved by the finite element method modeling of the plasmonic properties of Ag nanotriangles with different edge thicknesses (10 - 80 nm), Ag nanosheets with different tip acutances ( squares and hexagons) together with Ag nanorods, nanocubes and nanospheres. The experimental and theoretical results confirmed that the interspacing created by filter paper plays an important role in enhancing the overall SERS activity. Furthermore, it is shown that the present silver nanotriangles-loaded filter paper SERS substrate can be employed to sensitive and selective detecting ultratrace military explosives picric acid (PA) of 10(-6) M. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000374330900040 |
| 源URL | [http://ir.xjipc.cas.cn/handle/365002/4646]  |
| 专题 | 新疆理化技术研究所_环境科学与技术研究室 |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, C ,Liu, BX ,Dou, XC . Silver nanotriangles-loaded filter paper for ultrasensitive SERS detection application benefited by interspacing of sharp edges[J]. SENSORS AND ACTUATORS B-CHEMICAL,2016,231(8):357-364. |
| APA | Wang, C ,Liu, BX ,&Dou, XC .(2016).Silver nanotriangles-loaded filter paper for ultrasensitive SERS detection application benefited by interspacing of sharp edges.SENSORS AND ACTUATORS B-CHEMICAL,231(8),357-364. |
| MLA | Wang, C ,et al."Silver nanotriangles-loaded filter paper for ultrasensitive SERS detection application benefited by interspacing of sharp edges".SENSORS AND ACTUATORS B-CHEMICAL 231.8(2016):357-364. |
入库方式： OAI收割
来源：新疆理化技术研究所
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