METHOD FOR PRODUCING HETEROPOLYGRAPHIC PHOTOCATALYTIC MATERIALS NiFe2O4 / WO3

Abstract

The invention relates to a method for producing heterogeneous NiFe2O4 / WO3 photocatalytic materials for the treatment of organic pollutants, particularly antibiotics, in aqueous environments, comprising the following steps: (i) synthesis of NiFe2O4 material from iron and nickel salt precursors by co-precipitation combined with heat treatment; (ii) synthesis of WO3 material from sodium tungstate precursor (Na2WO4·2H2O) by a suitable method; and (iii) fabrication of heterogeneous NiFe2O4 / WO3 photocatalytic materials by hybridization of two semiconductor phases, NiFe2O4 and WO3, through a suitable heat treatment or synthesis method. The resulting material is capable of forming a Zscheme-type charge transfer mechanism, contributing to improved electron-hole separation efficiency and enhanced photocatalytic activity. Furthermore, the invention also relates to the heterogeneous photocatalytic material NiFe2O4 / WO3 obtained from the above method, which has the potential for effective application in treating organic pollutants in water environments.