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 m² 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 TiO₂ nanostructures.

纯BiFeO ₃（BFO）是通过溶胶-凝胶自动燃烧技术合成的，然后是X射线衍射（XRD），场发射扫描电子显微镜（FE-SEM），扩散反射光谱（DRS）和Brunauer-Emmett-Teller（ BET）表征方法。XRD分析表明，BFO纳米颗粒是相对纯的，平均微晶尺寸为约20nm。观察合成的BFO纳米粒子的FE-SEM图像，证实存在多孔结构。通过DRS分析计算出带隙能量制备的BFO的量为2.15eV。BET结果表明，合成的BFO的比表面积为55.071 m ²  g ^-1。在自行设计的间歇式光反应器中，通过制备的BFO和紫外光光催化去除氯苯（CB）。评估了CB浓度，湿度和光强度的影响。对不同参数的研究对去除CB具有个别影响。在1600 mg L ^-1的CB和12 W的紫外线下，CB的最高去除率为87.92％。在玻璃板上固定1770 mg BFO，湿度10％。制备的纳米颗粒去除CB的效率优于TiO ₂纳米结构。