Immobilized polyoxometalate on PANi and ZnO as an efficient and reusable photocatalyst for dye degradation

A literature review showed that dye removal using the immobilized POM onto the ZnO and polyaniline (PANi) nanoparticle as a photocatalyst. The immobilized mono substituted tungstophosphoric acid onto the ZnO and PANi nanoparticle as an environmentally friendly catalyst was used for photocatalytic dye degradation. The synthesized nanocomposite PW11Mn@ZnO@PANi was characterized using FTIR. Basic red was used as model dyes. Photocatalytic degradation method as an advanced oxidation process is an efficient procedure to degrade dyes and it includes irradiation of semiconductors as photocatalysts [1]. Herein, a new mono substituted phosphotungstate supported polyaniline and ZnO was investigated and demonstrated to be effective for dye degradation. Mono substituted phosphotungstate H3[PW11Mn] and ZnO nanoparticles and PW11Mn@ZnO@PANi catalyst were synthesized according to a reported procedure [2]. The identification of specific chemical bands and functional groups of the synthesized samples was characterized using FT-IR spectroscopy to confirm their successful incorporation (Fig 1). The photocatalytic activity of as-obtained samples was estimated through the photodegradation of basic red. The as prepared solution was illuminated under UV light irradiation, and absorption was measured at the maximum absorption wavelength of 531 nm