Fe_1Co_(0.5)Ba_(2.5)氧化物纳米颗粒芬顿催化降解亚甲基蓝的研究  

Fe_1Co_(0.5)Ba_(2.5) Oxide Nano Particles as Heterogeneous Catalysts for Fenton Degradation of Methylene Blue

作　　者：贾若琨[1] 马宗伟[1] 宫俊霞 徐凯[1] 艾丽莎[2] 杨文胜[2] 

机构地区：[1]东北电力大学化学工程学院,吉林132012 [2]吉林大学化学学院,长春130000

出　　处：《硅酸盐通报》2016年第5期1396-1401,共6页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(51003010);吉林省科技厅项目(20140101090JC)

摘　　要：采用溶胶-凝胶法制备的铁钴钡氧化物纳米颗粒作为非均相类芬顿催化剂,研究其催化降解亚甲基蓝,考察催化剂投加量,H_2O_2投加量,温度等对亚甲基蓝降解效率和降解速率的影响。结果表明,在最佳的实验条件下该氧化物颗粒与过氧化氢组成的芬顿试剂在20 min内,亚甲基蓝降解率达到95%。该反应符合一级动力学模型,55℃条件下,速率常数为0.10 min^(-1),反应活化能为54.1 k J/mol。Fe_1Co_（0.5）Ba_（2.5）nano oxide particles were prepared by the sol-gel method as a Heterogeneous Fenton catalyst,studying on the catalytic degradation of methylene blue,Effect of temperature,catalyst dosage,H_2O_2 dosage on the degradation efficiency and degradation rate of methylene blue. The results show under the best experimental conditions,the Fe_1Co_（0.5）Ba_（2.5）oxide particles with hydrogen peroxide consisting of Fenton＇s reagent could realize degradation rate reach to 90% within 20 min. The reaction follows the first order kinetic process,when the reaction takes place at 55 ℃,the rate constant is 0. 10min（-1）and the reaction activation energy is 54. 1 k J / mol.

关 键 词：非均相芬顿 铁钴钡氧化物纳米颗粒 亚甲基蓝 

分 类 号：TU528[建筑科学—建筑技术科学]