模拟偶氮染料废水处理的共沉淀型催化剂研制  

Development of Coprecipitated Catalysts for Treating Azo Dye Wastewater

作　　者：张永利[1] 许越[1] 张锦川[1] 

机构地区：[1]韩山师范学院化学系,广东潮州521041

出　　处：《当代化工》2012年第6期571-574,628,共5页Contemporary Chemical Industry

基　　金：广东省2009年自然科学基金(No.9452104101003815);2011年广东省高等学校人才引进专项资金项目

摘　　要：实验采用催化湿式氧化法对甲基橙模拟偶氮染料废水进行处理;催化剂的制备采用共沉淀方法,以Cu、Fe为催化剂活性组分,Ce、La为催化助剂,而制备多组分复合催化剂,研究了催化剂组分构成对催化剂性能的影响。实验中以催化剂的活性和稳定性综合对催化剂性能的评定,活性以水样的脱色率表示,而稳定性以原子吸收对组分的溶出浓度来表示。通过现代测试技术FT-IR、XRD、原子吸收等的测定,对催化剂性能进行检测。实验结果表明,双组分催化剂Cu1Fe1的性能优于单组分的Cu或Fe催化剂,而Cu-Fe-Ce-La=1∶1∶1∶1的性能更优一步。The catalytic wet air oxidation was used to treat methyl orange simulated azo dye wastewater in experiments; Using Cu and Fe as active components, Ce and La as catalytic additives, the multicomponent catalyst was prepared by co-precipitation method. Comprehensive performance assessment of the catalyst was carried out by investigating activity and stability of the catalyst, the decolorization rate of water samples was used as the activity index of the catalyst, the dissolved concentration of the components was used to represent the stability of the catalyst. Then the catalyst was characterized by FT-IR, XRD, and atomic absorption. Experimental results show that the performance of two-component catalyst Cu1Fe1 is better than that of single component Cu catalyst or Fe catalyst, and the performance of Cu-Fe-Ce-La （1 ： 1 ： 1 ： 1 ） catalyst is best.

关 键 词：共沉淀 稀土 催化剂 湿式氧化 

分 类 号：TQ426[化学工程]