a method for the degradation of pyrrolidine in water is described. the method relaies on the photocatalytic degradation of pyrrolidine to co2 and nh3 by uv irradiation and using titanium dixide semiconductor as a photocatalyst. compared with direct photolysis, the semiconductor catalytic photolysis gave consistently higher degradation yields for pyrrolidine in water. the effects of variable par...

The homogeneous titanium- and dye-catalyzed as well as the heterogeneous semiconductor particle-catalyzed photohydroxymethylation of ketones by methanol were investigated in order to evaluate the most active photocatalyst system. Dialkoxytitanium dichlorides are the most efficient species for chemoselective hydroxymethylation of acetophenone as well as other aromatic and aliphatic ketones. Pina...

Photochemistry has been developed as a powerful tool for organic transformations, such photoredox catalysis, photocycloaddition, and photoisomerization. Traditional photochemistry relies on molecular photosensitizers. Recently in Chem Catalysis, Weiss colleagues applied semiconductor nanoparticles photosensitizers to drive [2 + 2] cycloaddition of aryl-conjugated dienes with high chemo- ...

Fundamental aspects of light-driven water splitting are reviewed with emphasis on the kinetics and mechanism oxygen hydrogen evolution reactions at semiconductor photoelectrodes. Information provided by in operando techniques is discussed related to mechanisms catalysis.

The electrical nature of the nanoscale contact between metal nanodots and semiconductor rods has drawn significant interest because of potential applications for metal-semiconductor hybrid nanostructures in energy conversion or heterogeneous catalysis. Here, we studied the nanoscale electrical character of the Pt/CdSe junction in Pt/CdSe/Pt nanodumbbells on connected Au islands by conductive-pr...

Indanthrone, an old, insoluble dye can be converted into a solution processable, self-assembling and electroluminescent organic semiconductor, namely tetraoctyloxydinaptho[2,3-a:2',3'-h]phenazine (P-C8), in a simple one-pot process consisting of the reduction of the carbonyl group by sodium dithionite followed by the substitution with solubility inducing groups under phase transfer catalysis co...