Abstract We found that a gap mode plasmon induced photocatlaytic oxidation of p-alkyl thiophenol (TP) molecules such as p-methyl TP, p-ethyl TP, p-isopropyl TP and p-tertiary butyl TP to p-carboxyl… Click to show full abstract
Abstract We found that a gap mode plasmon induced photocatlaytic oxidation of p-alkyl thiophenol (TP) molecules such as p-methyl TP, p-ethyl TP, p-isopropyl TP and p-tertiary butyl TP to p-carboxyl TP, in which 532 nm laser ( 2 ) impinged on a sample of silver (Ag) nanoparticles/p-alkyl TP/Ag films/BK-7 prism under attenuated total reflection (ATR) and external geometry. In contrast to the para-substituted TP, o-methyl TP and m-methyl TP did not show the oxidation. The present observation on the oxidation of alkyl TP that is not thermally activated provides insights into the mechanism of plasmon mediated photocatalytic reactions.
Journal Title: Chemical Physics Letters
Year Published: 2017
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