Plasmonic enhancement of photocatalytic decomposition of methyl orange under visible light

A review on plasmonic metal⿿TiO2 composite for generation, trapping, storing and dynamic vectorial transfer of photogenerated electrons across the Schottky junction in a photocatalytic system

“…A thermodynamically uphill reaction such as oxidation of phenol accompanied by reduction of Cu 2+ is also driven by this catalyst under the irradiation of light with wavelength of 860 nm [100]. Au/TiO 2 demonstrated enhanced photocatalytic decomposition of MO under visible light exposure while the activity was reduced under UV light which was attributed to the decrease in the TiO 2 surface area by Au deposits [101]. Finite-difference time-domain simulations of these Au nanoparticles on TiO 2 photocatalyst show that the enhanced photocatalytic activity is due to the large plasmonic enhancement of the incident electromagnetic field, which increases the rate of electron-hole pair generation at the TiO 2 surface resulting in the enhancement of MO photodecomposition.…”

Evidence of Plasmonic Induced Photocatalytic Hydrogen Production on Pd/TiO2 Upon Deposition on Thin Films of Gold

“…Awazu and co-workers studied the photocatalytic behavior of TiO 2 film coated on silica covered Ag NPs. They found that the photocatalytic efficiency of methylene blue dye degradation increased with a decrease in SiO 2 layer thickness [28]. Cronin's group has attributed photocatalytic enhancement of both water splitting and dye degradation activity to this plasmonic local EF enhancement [29,30].…”

Nanostructure designs for effective solar-to-hydrogen conversion

“…Noble metal nanoparticles such as Au and Ag have been used to enhance the visible light photocatalytic activity of TiO 2 which only absorbs UV light, because of their plasmonic properties [87,88] . Thus, both photon energies of UV and visible light can be absorbed by TiO 2 to produce hydrogen via water splitting.…”