Preparation and characterization of Ag deposited and Fe doped TiO2 nanotube arrays for photocatalytic hydrogen production by water splitting

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

“…In another study Fe 3+ ions were doped into TiO 2 nanotube arrays synthesized by electrochemical anodic oxidation of pure titanium in an NH 4 F electrolyte solution containing iron ions. Ag nanoparticles were assembled on this Fe 3+ -TiO 2 nanotube array by microwave assisted chemical reduction method which showed enhanced quantum efficiency for H 2 production by water splitting under UV/visible light irradiation [176]. Both Ag and Fe effectively restrained the recombination rate of photogenerated charge carriers.…”

In-situ synthesis of plasmonic Ag/Ag3PO4 tetrahedron with exposed {111} facets for high visible-light photocatalytic activity and stability

“…4b) are estimated to be 2.47 eV and 2.52 eV, respectively. In the case of Ag/ Ag 3 PO 4 composites, the samples exhibit excellent optical response ability, the absorbance at the range of 400-800 nm is much higher than that of pure Ag 3 surface plasmon resonance effect of metal Ag. The absorption intensity of the composites is increased with the increasing amount of Ag nanoparticles deposited on the surface of Ag 3 PO 4 .…”

“…However, too much Ag nanoparticles on the surface of tetrahedral Ag 3 PO 4 are adverse to photocatalytic activity. With the overload of Ag nanoparticles, the visible light absorbed by Ag 3 PO 4 is decreased, which means a reduction of holes photogenerated by Ag 3 Ag 3 PO 4 to RhB molecule, which lead to the decrease of photocatalytic activity. These results confirm that Ag/Ag 3 PO 4 composite with appropriate Ag nanoparticles have the excellent visible light photocatalytic activity for the decomposition of organic dye.…”

“…Semiconductor photocatalysis has been considered as a promising approach for solving the problem of environmental pollutants and energy crisis by using abundant solar light [1][2][3]. However, the practical applications are limited by either poor solar utilization ratio or the rapid recombination rate of charge carriers [4,5].…”

Photocatalytic degradation of fipronil in water by silver-modified lithium vanadium phosphate spheres under visible light irradiation

“…The XRD pattern of ALVPS (not shown) was very similar to that of LVPS. It has been reported that the monatomic layer of Ag might induce the migration of photogenerated electrons from the bulk semiconductor phase to the Ag layer; therefore, the beneficial effects caused by Ag modification are still expected [13].…”