Aerogels have been studied as potential insulating and conducting materials, but little research has been conducted characterizing organic molecules in aerogel matrices using surface-enhanced Raman spectroscopy. In this study, SiO2-Ag colloid aerogels were used as enhanced surfaces for surface-enhanced Raman spectroscopy (SERS). SERS spectra of 4-mercaptobenzoic acid (4-MCBA) adsorbed to acid- and base-catalyzed SiO2-Ag colloid aerogels were measured. It was observed that acid-catalyzed silver sol gels with 4-MCBA mixed within the matrix provided SERS spectra with sharper and more enhanced peaks than the base-catalyzed silver sol gels.

Optimization of 4-mercaptobenzoic acid in SiO<sub>2</sub>-Ag colloid using surface-enhanced Raman spectroscopy

243rd National Meeting (2012)

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Optimization of 4-mercaptobenzoic acid in SiO2-Ag colloid using surface-enhanced Raman spectroscopy

Optimization of 4-mercaptobenzoic acid in SiO₂-Ag colloid using surface-enhanced Raman spectroscopy