Preparation and characterization of a novel magnetic biosorbent functionalized with biomass of Bacillus Subtilis : Kinetic and isotherm studies of biosorption processes in the removal of Methylene Blue

A novel magnetic biosorbent (M-BSub) was successfully prepared by the immobilization of Bacillus subtilis (B. subtilis) with nano-sized magnetic silica which was confirmed by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), scanning electron microscope (SEM). Optimum biosorption conditions were determined as a function of pH, contact time and initial concentration of Methylene...