Tags

Type your tag names separated by a space and hit enter

[Surface-enhanced Raman spectroscopic studies on the thiophenol adsorbed on novel Ag-Au alloy nanoparticles].
Guang Pu Xue Yu Guang Pu Fen Xi. 2007 Jun; 27(6):1136-9.GP

Abstract

Ag-Au alloy seeds were prepared by the simultaneous reduction of Ag and Au salts. The seeds were grown via NH2OH x HCl-growth method to obtain novel Ag-Au alloy nanoparticles with diameters of 40-60 nm. The nanoseeds and novel nanoparticles were characterized by UV-Vis spectroscopy and TEM respectively. The observation of one surface plasma resonance absorption band, the redshift in their frequencies, and the uniform color of the nanoparticles shown in TEM images indicated the formation of alloy structure for both the nanoseeds and the novel nanoparticles. By using thiophenol (TP) as probe molecules, SERS studies were performed on the novel nanoparticles. The absorption bands of the nanoparticles red shifted with the addition of TP, and new bands were detected in the near infrared region, which were attributed to the aggregation of TP covered nanoparticles. With the excitation line of 632. 8 nm, the SERS intensity of TP on Au was most largely enhanced, and that on alloy nanoparticles were increased as X(Au) increased.

Authors+Show Affiliations

Department of Chemistry, Suzhou University, Suzhou 215123, China.No affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article

Language

chi

PubMed ID

17763776

Citation

Wang, Mei, et al. "[Surface-enhanced Raman Spectroscopic Studies On the Thiophenol Adsorbed On Novel Ag-Au Alloy Nanoparticles]." Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu, vol. 27, no. 6, 2007, pp. 1136-9.
Wang M, Yao JL, Gu RA. [Surface-enhanced Raman spectroscopic studies on the thiophenol adsorbed on novel Ag-Au alloy nanoparticles]. Guang Pu Xue Yu Guang Pu Fen Xi. 2007;27(6):1136-9.
Wang, M., Yao, J. L., & Gu, R. A. (2007). [Surface-enhanced Raman spectroscopic studies on the thiophenol adsorbed on novel Ag-Au alloy nanoparticles]. Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu, 27(6), 1136-9.
Wang M, Yao JL, Gu RA. [Surface-enhanced Raman Spectroscopic Studies On the Thiophenol Adsorbed On Novel Ag-Au Alloy Nanoparticles]. Guang Pu Xue Yu Guang Pu Fen Xi. 2007;27(6):1136-9. PubMed PMID: 17763776.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Surface-enhanced Raman spectroscopic studies on the thiophenol adsorbed on novel Ag-Au alloy nanoparticles]. AU - Wang,Mei, AU - Yao,Jian-Lin, AU - Gu,Ren-Ao, PY - 2007/9/4/pubmed PY - 2010/6/11/medline PY - 2007/9/4/entrez SP - 1136 EP - 9 JF - Guang pu xue yu guang pu fen xi = Guang pu JO - Guang Pu Xue Yu Guang Pu Fen Xi VL - 27 IS - 6 N2 - Ag-Au alloy seeds were prepared by the simultaneous reduction of Ag and Au salts. The seeds were grown via NH2OH x HCl-growth method to obtain novel Ag-Au alloy nanoparticles with diameters of 40-60 nm. The nanoseeds and novel nanoparticles were characterized by UV-Vis spectroscopy and TEM respectively. The observation of one surface plasma resonance absorption band, the redshift in their frequencies, and the uniform color of the nanoparticles shown in TEM images indicated the formation of alloy structure for both the nanoseeds and the novel nanoparticles. By using thiophenol (TP) as probe molecules, SERS studies were performed on the novel nanoparticles. The absorption bands of the nanoparticles red shifted with the addition of TP, and new bands were detected in the near infrared region, which were attributed to the aggregation of TP covered nanoparticles. With the excitation line of 632. 8 nm, the SERS intensity of TP on Au was most largely enhanced, and that on alloy nanoparticles were increased as X(Au) increased. SN - 1000-0593 UR - https://www.unboundmedicine.com/medline/citation/17763776/[Surface_enhanced_Raman_spectroscopic_studies_on_the_thiophenol_adsorbed_on_novel_Ag_Au_alloy_nanoparticles]_ DB - PRIME DP - Unbound Medicine ER -