Feasibility study of MG decolorization by the new Biocatalyst of Kissiris/TiO2/Fe3O4/GOx

Titanium dioxide (TiO2) and Fe3O4 magnetite particles were coated on spherical Kissirises; and glucose oxidase (GOx) enzyme was immobilized on Kissiris/Fe3O4/TiO2 by physical adsorption. This catalyst was analyzed by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR) measurements. Performance of the prepared biocatalyst in decolorization of Malachite Green dye was investigated. The optimal operation parameters were 20 mg/L, 20 mM, 5.5 and 4 C for initial dye concentration, initial glucose concentration, pH and temperature, respectively. Under these conditions, 95% Malachite Green decolorization efficiency was obtained after 150 min of reaction by using 1 g of prepared heterogeneous bio-Fenton catalyst.

Keywords:

Heterogeneous bio-Fenton catalyst , Kissiris , Glucose oxidase , Decolorization