The formation of Ag clusters on silica colloidal nanoparticles was achieved by photoreduction of silver ions with visible laser irradiation. A mechanism of this process was proposed by observing the plasmon resonance bands of the silver clusters in UV–visible absorption spectroscopy. These Ag/SiO2 colloids are SERS-active and can be used to detect products that could be formed by heterogeneous catalytic reactions of ligands adsorbed on the colloidal surface.

SERS-active Ag/SiO2 colloids: Photoreduction mechanism of the silver ions and catalytic activity of the colloidal nanoparticles / M. MUNIZ-MIRANDA. - In: JOURNAL OF RAMAN SPECTROSCOPY. - ISSN 0377-0486. - STAMPA. - 35:(2004), pp. 839-842. [10.1002/jrs.1220]

SERS-active Ag/SiO2 colloids: Photoreduction mechanism of the silver ions and catalytic activity of the colloidal nanoparticles

MUNIZ-MIRANDA, MAURIZIO
2004

Abstract

The formation of Ag clusters on silica colloidal nanoparticles was achieved by photoreduction of silver ions with visible laser irradiation. A mechanism of this process was proposed by observing the plasmon resonance bands of the silver clusters in UV–visible absorption spectroscopy. These Ag/SiO2 colloids are SERS-active and can be used to detect products that could be formed by heterogeneous catalytic reactions of ligands adsorbed on the colloidal surface.
2004
35
839
842
M. MUNIZ-MIRANDA
File in questo prodotto:
File Dimensione Formato  
Ag-SiO2.pdf

Accesso chiuso

Tipologia: Versione finale referata (Postprint, Accepted manuscript)
Licenza: Tutti i diritti riservati
Dimensione 114.05 kB
Formato Adobe PDF
114.05 kB Adobe PDF   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/215372
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 52
  • ???jsp.display-item.citation.isi??? 47
social impact