CHED 1453 |
| The adsorption kinetics, thermodynamics, and photoreaction of p-nitrobenzoic acid (PNBA) to Ag-coated Au nanoparticle slides have been studied using surface-enhanced Raman scattering (SERS). PNBA was adsorbed to the slides by soaking the slides in 1.5mM PNBA. We found that times (< 1 min) gave the best SERS enhancement. The photoreduction of PNBA on the prepared surfaces was monitored through the SERS spectrum (with excitation at 632 nm) under ambient conditions. Spectral features consistent with azodibenzoic acid, the photoproduct, were clearly observed, and growth stopped after approximately 10 min. |
|
Undergraduate Research Poster Session: Physical Chemistry
2:00 PM-4:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |