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- W2988152011 abstract "Very low concentration of surface plasmon resonance (SPR) active and photocorrosion resistant Au nanoparticles (NPs) have been used to sensitize a wide bandgap semiconductor (TiO2) and extend its photocatalytic activity to the visible region. Au–P25–TiO2 nanocomposites with Au NPs (less than 5 nm) with varying concentration (0.5–1 wt %) were synthesized and characterized. Their electrochemical response in presence and absence of light irradiation was evaluated and it was observed that at lower Au loadings the photocurrent increases with Au concentration and maximizes at 0.7 wt % (wt%), and subsequently on higher loadings the photocurrent decreases monotonically. The Mott-Schottky analysis indicates that a balance between charge carrier density (Nd, a kinetic parameter) and the flatband potential (VFB, a thermodynamic parameter) is potentially responsible for the observed change in photocurrent response with Au loading. This report is useful for the design and performance optimization of Au–TiO2 catalyst based photoelectrochemical devices." @default.
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- W2988152011 date "2020-01-01" @default.
- W2988152011 modified "2023-10-14" @default.
- W2988152011 title "Effect of Au nanoparticle loading on the photo-electrochemical response of Au–P25–TiO2 catalysts" @default.
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- W2988152011 doi "https://doi.org/10.1016/j.jssc.2019.121051" @default.
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