Fe-MEL分子筛催化剂的制备及其催化脱色  

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

作　　者：成岳[1] 潘顺龙[2] 焦创[1] 王晶[1] 

机构地区：[1]景德镇陶瓷学院材料学院江西省先进陶瓷材料重点试验室,江西景德镇333003 [2]扬州大学环境学院,江苏扬州225000

出　　处：《过程工程学报》2012年第1期148-153,共6页The Chinese Journal of Process Engineering

基　　金：江西省教育厅重点基金资助项目(编号:GJJ11025)

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30mg/L及pH6、催化剂投加量3.75g/L和30%(ω)H2O2加入量37.5mL/L、反应时间2.5h的优化条件下,染料废水脱色率达97.8%.MEL zeolite was synthesized by hydrotherlnal 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%（ω） H2O2 amount at 37.5 mL/L and reaction time was 2.5 h, respectively.

关 键 词：Fe-MEL分子筛 非均相催化剂 催化氧化 H2O2 

分 类 号：O643.36[理学—物理化学]