Photodegradation of textile dye using magnetically recyclable heterogeneous spinel ferrites

摘要

BACKGROUNDThe extensive use of dyes in textile industries leads to discharge of dye effluents into water bodies which causes problem to human and aquatic life. In this regard, magnetic nanospinels having formula MFe2O4 (M=Cu, Zn, Ni and Co) were developed and characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), powder x-ray diffraction (XRD) and diffuse reflactance spectra (DRS). The activity of all the ferrites as heterogeneous Fenton and photo-Fenton catalysts was evaluated by degradation of Remazol Black 5 (RB5) which is used in the textile industry to dye cotton.