环境工程学报2012，Vol.6Issue(11)：4102-4106,5.
Fe-MCM-41催化氧化2,4-二氯苯氧乙酸
Catalytic degradation of 2,4-dichloro-phenoxyacetic acid by self-synthesized Fe-MCM-41
摘要
Abstract
The mesoporous molecular sieves Fe-MCM-41 were synthesized via a hydrothermal method,and characterized by X-ray powder diffraction,FTIR and DRS-UV-Vis.The characterization data show that Fe3+ got into the framework of MCM-41.Catalytic degradation of 2,4-dichloro-phenoxyacetic acid wastewater was investigated by using Fe-MCM-41 catalysts and hydrogen peroxide as Fenton-like reagent.The results indicate that the degradation rate of 2,4-dichloro-phenoxyacetic acid(50 mg/L) reached 94.95% in the presence of Fe-MCM-41(1 g/L) and hydrogen peroxide(6%) at pH of 4 after 10 hours under normal temperature and pressure.Kinetic studies of the catalytic reaction show that the degradation rate of 2,4-dichloro-phenoxyacetic acid nearly followed the first-order reaction,the reaction constant and activity energy respectively are 0.21667 min-1 and 26.65 kJ/mol at 35℃.关键词
Fe-MCM-41/2,4-二氯苯氧乙酸/类Fenton/动力学Key words
Fe-MCM-41/2/4-dichloro-phenoxyacetic acid/Fenton-like/kinetics分类
资源环境引用本文复制引用
何立平,付川,李庭真,潘杰,林俊杰..Fe-MCM-41催化氧化2,4-二氯苯氧乙酸[J].环境工程学报,2012,6(11):4102-4106,5.基金项目
教育部春晖计划项目 （）
