以硝酸铋、偏钒酸铵和硝酸铁为原料，通过水热法制备了不同铁摩尔分数的Fe/BiVO₄光芬顿催化剂，以可见光条件下降解亚甲基蓝为模型反应考察其光芬顿反应性能。通过XRD、SEM分析了不同Fe摩尔分数以及水热反应pH对催化剂暴露晶面和形貌的影响。结果表明，当Fe与Bi的摩尔比为0.5%、水热反应pH为7时，制备的Fe/BiVO₄-0.5-7催化剂在可见光下对亚甲基蓝60 min的最高移除效率约为80%，是纯BiVO₄的2倍。

A series of Fe/BiVO₄ photo-Fenton catalysts with different Fe contents are prepared through hydrothermal method by using bismuth nitrate,ammonium metavanadate and iron nitrate as raw materials.Their photo-Fenton reaction performance is evaluated through degrading methylene blue under visible light as a model reaction.The effects of Fe content of the catalysts and pH of the reaction solution on the exposed facet and morphology of the catalysts are investigated by X-ray diffraction (XRD) and scanning electron microscope (SEM).It is indicated that the prepared catalyst Fe/BiVO₄-0.5-7 exhibits the best degradation performance to methylene blue under visible light when the molar ratio of Fe to Bi is 0.5% and pH of the reaction solution is 7.80%.Over Fe/BiVO₄-0.5-7,the removal rate of methylene blue can reach 80% within 60 min,which is 2 times that over pure BiVO₄.

纪东辉(1994-),男,硕士研究生,研究方向为芬顿催化剂的制备与性能研究,18342236575@163.com