l-Arginine-assisted one-pot synthesis of hierarchical Ag1Pt2nanocorallines for surface-enhanced Raman spectroscopy.
The hierarchical multi-branched Ag1Pt2nanocorallines (NCs) were prepared in a large scale by a rapid aqueous method, using l-arginine as the eco-friendly shape-directing agent. The product was mainly characterized by microscopy measurements, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The architectures exhibited superior surface-enhanced Raman scattering (SERS) with 4-nitrothiophenol (4-NTP), the enhancement factor (EF) of 1.3×105, a wide linear range of 10-100μM and a low detection limit of 0.01μM. Meanwhile, the SERS-active substrate was explored for the assay of 4-mercaptobenzoic acid (4-MBA) with significantly enhanced SERS performance. It means Ag1Pt2NCs as a good Raman-active platform for sensing in food and environment analysis, owing to their rough surfaces and unique multi-branched structures.
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China.
Liu-Ying
LY
Jiang
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China.
Xin-Sheng
XS
Li
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China.
Ai-Jun
AJ
Wang
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China.
Hong
H
Huang
College of Chemistry and Life Science, College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China. Electronic address: jjfeng@zjnu.cn.
Jiu-Ju
JJ
Feng
4-Mercaptobenzoic acid; 4-Nitrothiophenol; Nanocorallines; Surface-enhanced Raman scattering; l-Arginine