Relationship between the catalytic behavior of FeZSM-5 zeolites in oxidative degradation of dyes and the nature of their active centers

Catalytic activity of FeZSM-5 zeolites in oxidative degradation of Rhodamine 6G and Methyl Orange dyes was studied in relation to the nature, localization, and dispersity of active centers and on the reversibility of the oxidation reduction of iron contained in the zeolites.     

Purcell effect in triangular plasmonic nanopatch antennas with three-layer colloidal quantum dots

A model describing a plasmonic nanopatch antenna based on triangular silver nanoprisms and multilayer cadmium chalcogenide quantum dots is introduced. Electromagnetic-field distributions in nanopatch antennas with different orientations of the quantum-dot dipoles are calculated for the first time with the finite element method for numerical electrodynamics simulations. The energy flux through the surface of an emitting quantum dot is calculated for the configurations with the dot in free space, on an aluminum substrate, and in a nanopatch antenna. It is shown that the radiative part of the Purcell factor is as large as 1.7 × 10₂ The calculated photoluminescence lifetimes of a CdSe/CdS/ZnS colloidal quantum dot in a nanopatch antenna based on a silver nanoprism agree well with the experimental results.     

Analysis of the Structural Evolution of Zinc Oxide Powders Obtained by Mechanical High-Energy Grinding

Technical Physics - Zinc oxide powders made by mechanical high-energy grinding have been investigated using the methods of scanning electron microscopy, thermal nitrogen desorption, and Raman...     

Magnetic susceptibility of the suicides and germanides Me5Si3 and Me5Ge3 (Me=Sc,Ti, V)

Russian Physics Journal -