环境工程学报2012，Vol.6Issue(10)：3417-3423,7.
磁性LDH负铜催化剂的制备及其对直接青莲D-BL的脱色
Synthesis and evaluation of copper-loaded magnetic LDH catalysts used in decoloration of dyestuff D-BL
摘要
Abstract
The magnetic particles of Fe3O4 were coated by Mg-Al layered double hydroxides via co-precipitation firstly.With anion exchange reactions,the coordination compound [Cu(C2O4)2]-was intercalated into the layers of the magnetic LDHs,and the prepared solids were calcined to obtain inorganic CCML catalysis(copper-loaded magnetic LDH catalysts).The catalysts were characterized via SEM,X-Ray,FT-IR.And the catalysis performance of them was evaluated with a set of static experiments.Optimum conditions of preparation were that the magnetic LDHs were modified by [Cu(C2O4)2]-solution for one time,the temperature and time of calcination were 450℃ and 5 h,respectively.In the static CWPO experiments of decoloration of direct violet D-BL,CCML catalysts can obtain removal rates of 99.62%,90.43% and 81.92% with original dye concentrations of 200,300 and 500 mg/L,respectively.关键词
LDH/焙烧/催化/染料废水/CWPOKey words
LDH/calcination/catalytic/dye wastewater/CWPO分类
资源环境引用本文复制引用
刘琰,李剑超,张红,刘啸乾,杨晓青,毛勇..磁性LDH负铜催化剂的制备及其对直接青莲D-BL的脱色[J].环境工程学报,2012,6(10):3417-3423,7.基金项目
国家自然科学基金资助项目 （）
教育部留学回国人员科研启动基金 （）
陕西省攻关计划项目 （）
