纳米CoFe_2O_4催化光电类Fenton反应降解2,4-二氯酚研究  

Research on Heterogeneous Photoelectro-Fenton like process with CoFe_2O_4 Nanoparticles as Catalyst in degradation of 2,4-Dichlorophenol

作　　者：刘盼[1,2] 方冰 王现丽[2] 吴俊峰[2] 郭一飞[2] 朱新锋[2] 康海彦[2] 宋丰明[2] 

机构地区：[1]郑州大学化学与分子工程学院,河南郑州450001 [2]河南城建学院市政与环境工程学院,河南平顶山467036 [3]平顶山市新城清源污水净化有限公司,河南平顶山467000

出　　处：《河南城建学院学报》2016年第2期80-87,共8页Journal of Henan University of Urban Construction

基　　金：河南省教育厅科学技术研究重点项目(14B610012);河南城建学院青年骨干教师资助项目

摘　　要：运用化学法制备Co Fe_2O_4光电非均相催化剂用于降解2,4-二氯酚,并采用TEM、XRF、XRD和BET等技术对制备的催化剂进行表征。结果表明:在0.2mmol·L-12,4-二氯酚,0.05mol·L-1硫酸钠,外电压-0.8V,p H为3.0,0.067g·L-1Co Fe_2O_4在UV照射条件下,反应180min后,2,4-二氯酚降解率可达到89.6%,COD去除率可达到84.2%。同时,Co Fe_2O_4在重复使用过程中具有较高的稳定性。The Co Fe2O4 has been synthesized using a co- precipitation process used as optoelectronic heterogeneous catalysts in the degradation of 2,4-Dichlorophenol. The as-prepared samples have been characterized by transmission electron microscope（ TEM）,X-ray fluorescence analysis（ XRF）,X-ray diffraction analysis（ XRD） and BET surface area. These results indicate that the removal efficiency is up to 89. 6% after 180 min on the optimum condition of 0. 2 m M·L- 12,4-Dichlorophenol,0. 05 mol·L- 1Na2SO4,the electrical potential- 0. 8V,p H = 3,0. 067g·L- 1Co Fe2O4 and UV irradiation. Furthermore,the results also demonstrated thatthe Co Fe2O4 has excellent stability.

关 键 词：光电Fenton COFE2O4 2 4-二氯酚 

分 类 号：X703[环境科学与工程—环境工程]