Abstract
Here, we report multi-component plasmonic core–shell nanodendrites (Pt@rGO-AuNPs) composed of nano-sized reduced graphene oxide coated gold nanoparticles as a multiple photo-system modality. The prepared Pt@rGO-AuNPs took 40, 60, and 75min with the pseudo first-order rate constants 0.112min−1 0.069min−1 and 0.048min−1 to completely degrade (≥98%) methylene blue, methyl red, and methyl orange, respectively, at room temperature. Pt@rGO-AuNPs also showed a high photothermal effect (temperature ≥43°C in 5min, 808nm laser, 6W/cm2) and found to have robust morphology during recyclability for at least five cycles in both photocatalytic and photothermal processes.
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