Abstract
A novel visible-light-responsive photocatalyst consisting of gold nanoparticles and perylene adsorbed on silica gel (Au/Pe/SiO2) has been developed. By comparing the reduction of an environmental pollutant in the presence of Au/Pe/SiO2 and sodium borohydride by visible light irradiation to that in the dark, the effect of the photocatalyst on the catalytic activity of AuNP was observed. Visible light irradiation of the p-nitrophenol (p-NP) aqueous solution in the presence of sodium borohydride and Au/Pe/SiO2 resulted in the acceleration of the decomposition of p-NP. The rate constant for the reaction with the irradiation was 2.1 times higher than that in the dark.
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