Photocatalytic degradation of methylene blue and brilliant green using tio2, loaded on groundnut shell activated carbon under sunlight radiation

Titanium dioxide and Titanium dioxide loaded groundnut shell activated carbon photocatalytic activity were synthesized by sol-gel technique. The preparation of TiO2 and TiO2/GNSAC photocatalysts were achieved by titanium tetra isopropoxide and 2-propanol as common starting materials and annealed the product at 500 °C for 2 h to get anatase phase, respectively. The prepared materials were characterized by X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR), and UV-Vis-diffuse reflectance spectroscopy (DRS), The photocatalytic activity was tested and compared with that of TiO2 and TiO2/GNSAC on the degradation of methylene blue (MB) and brilliant green (BG) in an aqueous solutions using sunlight radiation. The adsorption kinetics followed both the pseudo-first-order and second-order giving a better fit. The TiO2/GNSAC removal over 95.39% of BG and 81.57% of MB dyes and its adsorption was fitted best to all models.