Synthesis, characterization and catalytic evaluation of tungstophosphoric acidimmobilized onY zeolite

CANDELARIA LEAL MARCHENA; SILVINA GÓMEZ; LILIANA B. PIERELLA; LUIS R. PIZZIO

Advanced Oxidation Technologies: Sustainable Solutions for Environmental Treatments

Taylor and Francis

Año: 2014; p. 43 - 54

In the present work, we attempted to combine the well-known photocatalytic properties ofthe tungstophosphoric acid, one of POM most employed in homogeneous photocatalysis, and theabove-mentioned properties of zeolites as POM supports, to synthesized heterogeneous photocatalyticmaterials. These materials can be considered as an alternative to the more widely studycatalysts based on TiO2.They were prepared by impregnation of tungstophosphoric acid onto zeolite NH4Y with theaim to study their influence on the physicochemical, and textural characteristics of the solids,and to discuss the effect of the preparation variables on the methyl orange (MO) degradation.To the best of our knowledge, this is the first time that these materials have been successfullysynthesized and tested in the photodegradation of this dye.