Preparation of Iron-doped MEL Zeolite and Its Performance of Catalytic Decolorization
CHENG Yue PAN Shun-long JIAO Chuang WANG Jing
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
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.
2012, Vol. 12 
