Pure BiFeO3(BFO) was synthesized by the sol-gel auto combustion technique, then X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), Diffusion reflecting spectroscopy (DRS) and Brunauer-Emmett-Teller (BET) methods used for its characterization. The XRD analysis revealed that BFO nanoparticles were relatively pure and the average crystallite size was about 20 nm. Observation of FE-SEM images of synthesized BFO nanoparticles, the presence of porous structure confirmed. The amount of bandgap energy prepared BFO was calculated 2.15 eV by DRS analysis. BET results showed the specific surface area of synthesized BFO was 55.071 m(2) g(-1). Photocatalytic removal of chlorobenzene (CB) by prepared BFO and UV light in the self-designed batch photoreactor studied. Effect of concentration of CB, humidity, and light intensity evaluated. The studies of different parameters have individual effects on the removal of CB. The highest removal of CB was 87.92% under conditions, 1600 mg L(-1)of CB, 12 W UV light; 1770 mg immobilized BFO on glass plates, and 10% humidity. The prepared nanoparticle's efficiency for the removal of CB was better than TiO(2)nanostructures.
