The radical addition of thiols to alkenes is reported under photoredox conditions, using visible light and TiO2 as a cheap and readily available photocatalyst.

photocatalytic membranes exhibit great potential for water treatment since they combine the filtration and photo degradation in a single unit. although blending photocatalytic nanoparticles into polymeric thin film remains the simplest method to prepare the photocatalytic membrane, the entrapped photocatalyst showed less catalytic activity due to the agglomeration and shielding effects in the p...

A novel oxygen catalyst is prepared via the photodeposition of ruthenium(IV) oxide on a titania photocatalyst derived from a perruthenate precursor.

A reconstituted myoglobin with a synthetic cofactor having anionic binding sites effectively works as a photocatalyst for hydrogen generation in the presence of monomethylated bipyridinium.

Nanoparticulate titanium dioxide (TiO(2)) is highly photoactive, and its function as a photocatalyst drives much of the application demand for TiO(2). Because TiO(2) generates reactive oxygen species (ROS) when exposed to ultraviolet radiation (UVR), nanoparticulate TiO(2) has been used in antibacterial coatings and wastewater disinfection, and has been investigated as an anti-cancer agent. Oxi...

Photoredox-mediated Ni-catalyzed cross-couplings are powerful transformations to form carbon–heteroatom bonds and generally photocatalyzed by noble metal complexes. Low-cost easy-to-prepare carbon dots (CDs) attractive quasi-homogeneous photocatalyst alternatives, but their applicability is limited short photoluminescence (PL) lifetimes. By tuning the surface PL properties of CDs, we designed c...

The Sn-modified TiO2 photocatalysts are prepared by low-temperature sol-gel processing based on organic titanium and tin precursors with varied Sn concentrations (from 0.1–20 mol .%). role of dopant as the promotor formation rutile crystalline phase is explained optimal concentration for preparation efficient titania photocatalyst determined. Up to 40 % increase in photocatalytic activity achie...

This paper describes the basics of photocatalysis on semiconductors, mainly on TiO2 and the application of photocatalytic processes for water purification from organic and inorganic matter as well as metal removal introduced in order to improve the photocatalytic action of titanium dioxide. The photocatalytic activity of anatase phases of nanocrystalline TiO2 for the degradation of different su...