石油炼制与化工 ›› 2015, Vol. 46 ›› Issue (11): 88-91.

• 节能减排 • 上一篇    下一篇

分子筛负载铁铈处理甲基橙模拟废水研究

王帅军,董培,张雨,赵朝成   

  1.  中国石油大学(华东)化学工程学院环境与安全工程系
  • 收稿日期:2015-03-26 修回日期:2015-05-26 出版日期:2015-11-12 发布日期:2015-10-27
  • 通讯作者: 赵朝成 E-mail:zhaochch@upc.edu.cn
  • 基金资助:

    中国石油大学(华东)研究生创新工程项目

STUDY OF METHYL ORANGE SIMULATED WASTEWATER TREATMENT BY ZEOLITE WITH Fe-Ce BIMETALS

  • Received:2015-03-26 Revised:2015-05-26 Online:2015-11-12 Published:2015-10-27

摘要: 以微介孔分子筛ZSM-5为载体,硝酸铁和硝酸铈溶液为前躯体,采用等体积浸渍法制备了Fe-Ce/ZSM-5催化剂。与其它方法相比,等体积浸渍法具有操作简单,无需复杂设备,效率高等特点。通过催化氧化过氧化氢(H2O2)技术(CWPO)处理甲基橙模拟废水,考察其催化性能,得出最佳制备条件。结果表明,在H2O2存在条件下,浸渍液浓度为2.0 mol/L,Fe/Ce摩尔比为3:1,焙烧温度为400 °C时,其处理效果最佳。在最佳制备条件基础上,采用H2O2协同处理甲基橙废水反应100 min后,其去除率高达85%。通过X射线衍射、透过电镜手段进行表征,表明负载金属的加入不仅保持了分子筛的均匀的孔道结构,而且同时具有了Fe-Ce活性的特点。

Abstract: A series of Fe-Ce/ZSM-5 catalysts were synthesized via equivalent-volume co-impregnation of ferric nitrate and cerium nitrate on micro-meso pore ZSM-5. The pore volume impregnation is thought the one with simple operation without complex equipment, and high efficiency. The optimal catalyst preparation condition was evaluated by catalytic oxidation of hydrogen peroxide (H2O2) technology (CWPO) to degrade the methyl orange solution. The results indicate that the best preparation conditions are: co-impregnation solution concentration 2.0 mol/L with the mole ratio of Fe/Ce of 3:1 and the calcination temperature 400 °C. In the presence of H2O2 and reaction time 100 min, more than 85% methyl orange is removed. TEM and XRD results show that Fe-Ce/ZSM-5 remains the ZSM-5 pore structure and the catalytic properties of iron oxides and cerium oxides.