Ceramic ZnO-SnO2-Fe2O3 Powders and Coatings -Effective Photogenerators of Reactive Oxygen Species

Ceramic ZnO-SnO2-Fe2O3 powders and transparent coatings on glasses prepared using the non-isothermal polymer-salt method demonstrate a strong ability to generate chemically active oxygen species under UV visible irradiation. Crystal structures morphologies of these materials were studied XRD SEM analysis. It was found that there are significant differences in crystal structure ceramic thin coatings. The consist randomly oriented oxide nanocrystals size ~47 nm. orientation ZnO due their interaction with glass substrate is observed coating structure. Experimental data show (~90%) spectral range band gap material 3.44 eV. value this multi-component described sufficiently Verlag’s law. intensive photogeneration reactive species, both liquid air. High photocatalytic activity upon oxidation diazo dye, Chicago Sky Blue. In presence coating, constant rate dye photodecomposition high (k = 0.056 min−1). that, spite short life time, photogenerated decompose molecules located up distance 0.5 mm from surface coating. Obtained experimental results suggest promising for different practical applications materials.