ADVANCED OXIDATION TECHNOLOGIES TO REMOVE ENDOCRINE DISRUPTORS IN WATER EFFLUENTS BASED ON ZINC SUPPORTED MESOPOROUS CATALYSTS

CARRARO PAOLA M.; MARCOS I. OLIVA; ALFANO, ORLANDO M.; BENZAQUÉN, TAMARA B.; EIMER GRISELDA A.

REVISTA MEXICANA DE INGENIERIA QUIMICA

UNIV AUTONOMA METROPOLITANA-IZTAPALAPA

Lugar: México D.F.; Año: 2018 vol. 17 p. 1135 - 1146

1665-2738

Mesoporous silica material type MCM-41 was modified with different amounts of Zn (1 - 15 wt.%) by the wet impregnation method. Support and catalysts were characterized by means of powder X-ray diffraction (XRD), N2 nitrogen adsorption?desorption, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and ICP-OES techniques. The Zn-modified mesoporous silicates have been successfully tested for the degradation in aqueous solutions of different endocrine-disrupting (EDs), such as herbicides (atrazine), compounds derived from the plastic industry (bisphenol A) and from the pharmaceutical industry (clofibric acid). The results showed that the Zn/M(5) catalyst exhibited the highest activity. The high performance of this material indicates that the heterogeneous photo-Fenton-like reaction appears as a very promising pre-treatment capable of enhancing the biodegradability of water contaminated with biorecalcitrant chemicals, as the most endocrine disruptors.