Citation: ZHOU Xin, YAO Ai-Hua, ZHOU Tian, WANG De-Ping. Synthesis of Caron Nanobutes@SiO₂@Ag Nanocomposites for Surface-Enhanced Raman Scattering[J]. Chinese Journal of Inorganic Chemistry, ;2014, 30(3): 543-549. doi: 10.11862/CJIC.2014.058 shu

Synthesis of Caron Nanobutes@SiO₂@Ag Nanocomposites for Surface-Enhanced Raman Scattering

ZHOU Xin ¹ ,
YAO Ai-Hua ^1,2 ,
ZHOU Tian ¹ ,
WANG De-Ping ^1,2

1.
1 School of Materials Science and Engineering, Tongji University, Shanghai 200092, China;

Received Date: 29 July 2013
Available Online: 28 September 2013
Fund Project: 国家自然科学基金(No.50702037) (No.50702037)上海市自然科学基金(13RZ1444200) (13RZ1444200)

With SiO₂ acting as an interlinker, multiwalled carbon nanotubes (MWCNTs) were grafted with Ag nanoparticles to form CNTs@SiO₂@Ag nancomposites. The microstructure, morphology and composition of the nanocomposites were characterized by TEM, XRD, UV-Vis, XPS. Meanwhile, surface-enhanced Raman scattering (SERS) effect of the nanocomposites was also studied. The results show that Ag nanoparticles effectively improve SERS activity of CNTs, and compared with the pure CNTs, the Raman peak intensities of the nanocomposite increase by 5 times. Furthermore, the SERS activity of the nanocomposite was investigated using Rhodamine 6G (R6G) as the probe molecules. It is found that the SERS signal intensity and quality of the R6G molecules are obviously improved. The high SERS sensitivity of the nanocomposite make it a suitable substrate for noninvasive biomedical detection.
- carbon nanotubes;silver;silica;surface-enhancement Raman scattering
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Synthesis of Caron Nanobutes@SiO2@Ag Nanocomposites for Surface-Enhanced Raman Scattering

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Synthesis of Caron Nanobutes@SiO₂@Ag Nanocomposites for Surface-Enhanced Raman Scattering