Phototransformations of TiO₂/Ag₂O composites and their influence on photocatalytic water splitting accompanied by methanol photoreforming

Abstract

This work aimed to revise the mechanism of photocatalytic activity of the TiO2/Ag2O system in photocatalytic water splitting accompanied by methanol photoreforming. The transformation of Ag2O into silver nanoparticles (AgNPs)...

New insights into the influence of plasmonic and non-plasmonic nanostructures on the photocatalytic activity of titanium dioxide

“…7 ). The process consists of both oxidation and reduction parts, 42 therefore, it was selected as the link that connects the previously examined reductive and oxidative paths and also involves the catalytic properties of palladium. It turned out that in this case, the catalytic effect prevails as well.…”

A review on the recent advances in the design and structure–activity relationship of TiO2-based photocatalysts for solar hydrogen production

“…Numerous semiconductor metal oxides including ZnO, 59 CeO 2 , 55 WO 3 , 126 SrTiO 3 , 127 Y 2 O 3 , 124 CoO, 128,129 NiO, 56,123,128 Cu x O, 6,117,130 Ag 2 O, 131,132 and Fe 2 O 3 54 are have been employed for the fabrication of stable and low-cost heterojunction structures with TiO 2 . These composites with reduced band gaps have been found to be very effective for electron–hole separation and charge transfer, 63,131,133 and hence promising alternatives to the very expensive noble metal-based photocatalyst systems.…”

Enhanced Photocatalytic Hydrogen Production from Poly(vinyl alcohol) Plastic-Dissolved Wastewater

“…On the other hand, the FTIR results align with the experimental findings of minimal CO 2 emissions (Figure 3c), demonstrating that PVA holds an advantage in reducing environmental impact compared to small molecular sacrificial agents and as well as other ester bonds-contained polymers and monomers. 22,37 To further investigate the mechanism of the PVA-assisted photocatalytic process, electron paramagnetic resonance (EPR) tests were performed using 5,5-dimethyl-1-pyrroline N-oxide (DMPO) as a trapping agent. As shown in Figure 4d, no EPR signal was observed under dark conditions for both photocatalyst dispersions with and without PVA additive.…”

“…On one hand, this process facilitates the consumption of photogenerated holes, leading to an enhancement in the rate of hydrogen production. On the other hand, the FTIR results align with the experimental findings of minimal CO 2 emissions (Figure c), demonstrating that PVA holds an advantage in reducing environmental impact compared to small molecular sacrificial agents and as well as other ester bonds-contained polymers and monomers. , …”