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›› 2012, Vol. 12 ›› Issue (1): 148-153.

• 材料工程专栏 • 上一篇    下一篇

Fe-MEL分子筛催化剂的制备及其催化脱色

成岳 潘顺龙 焦创 王晶   

  1. 江西景德镇景德镇陶瓷学院材料学院 扬州大学环境学院 景德镇陶瓷学院材料学院 景德镇陶瓷学院材料学院
  • 收稿日期:2011-11-10 修回日期:2012-02-10 出版日期:2012-02-20 发布日期:2012-02-20
  • 通讯作者: 成岳

Preparation of Iron-doped MEL Zeolite and Its Performance of Catalytic Decolorization

CHENG Yue PAN Shun-long JIAO Chuang WANG Jing   

  1. Materials Science and Engineering， Jingdezhen Ceramic Institute College of Environmental Sciences, Yangzhou University Materials Science and Engineering， Jingdezhen Ceramic Institute Materials Science and Engineering， Jingdezhen Ceramic Institute
  • Received:2011-11-10 Revised:2012-02-10 Online:2012-02-20 Published:2012-02-20
  • Contact: CHENG Yue

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被引次数

17

摘要： 按摩尔比SiO2:TBAOH(四丁基氢氧化铵):H2O=1:0.35:53水热合成了MEL分子筛，并以机械研磨法制备了Fe-MEL分子筛催化剂，对其进行了表征，研究了其催化H2O2降解染料废水的性能，考察了染料废水初始浓度、pH值、催化剂投加量、H2O2用量、反应时间对降解效果的影响. 结果表明，在染料浓度30 mg/L及pH 6、催化剂投加量3.75 g/L和30%(w) H2O2加入量37.5 mL/L、反应时间2.5 h的优化条件下，染料废水脱色率达97.8%.

关键词: Fe-MEL分子筛, 非均相催化剂, 催化氧化, H2O2

Abstract: MEL zeolite was synthesized by hydrothermal method with a molar ratio of SiO2:TBAOH:H2O at 1:0.35:53. Fe doped composite catalyst based on the MEL zeolite carrier was prepared by mechanical mixing method. The catalyst samples were characterized. The effects of initial concentration of the dye wastewater, aqueous solution pH, amount of catalyst and H2O2 used, and reaction time on the degradation rate of dye wastewater were investigated. The results showed that the decolorization rate was 97.8% under the optimal conditions of dye concentration at 30 mg/L and pH value at 6, catalyst dosage at 3.75 g/L, 30%(w) H2O2 amount at 37.5 mL/L and reaction time was 2.5 h, respectively.

Key words: Fe-MEL zeolite, heterogeneous catalyst, catalytic oxidation, hydrogen peroxide

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