水-乙二醇溶剂热合成ZnAl-LDHs及其煅烧产物对染料的吸附性能  

Water-ethylene glycol solvothermal synthesis of ZnAl-LDHsand the adsorption properties of its calcined productson the dyes

作　　者：黄改玲[1] 孙迎迎[1] 陈凤华[1] HUANG Gailing SUN Yingying CHEN Fenghua(School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002,Chin)

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450002

出　　处：《南昌大学学报（理科版）》2017年第2期152-157,共6页Journal of Nanchang University(Natural Science)

基　　金：河南省科技厅基础与前沿技术研究项目(162300410216);河南省高校科技创新人才支持计划项目(15HASTIT048);河南省高等学校青年骨干教师资助计划项目(2015GGJS-181)

摘　　要：以尿素为沉淀剂,水-乙二醇混合溶液作溶剂,采用均匀沉淀法合成不同形貌和粒径的ZnAl-LDHs前驱体。研究其煅烧产品(LDOs)对刚果红,甲基橙,活性红吸附性能发现,其中花状的ZnAl-LDH^(-1)的煅烧产品吸附性能最好。研究了ZnAl-LDO^(-1)对3种染料的吸附性能和机理,其对刚果红,甲基橙和活性红的最大吸附量分别是1233,594,262mg·L^(-1)。In this study,using water-ethyleneglycol mixed solution as solvent,ZnAl-LDHsprecursors with different morphologies and sizes were synthesized by homogeneousprecipitation method.Study on the adsorption capacity of its calcined product（LDOs）toCongo red,methyl orange and activated red demonstrated that the calcined product（LDO）of the flower like ZnAl-LDH-1showed much better adsorption efficiency for anion dyes.The sorption behaviors and mechanism of ZnAl-LDH-1for three dyes were investigated.The results also showed that the maximum absorption capacity of ZnAl-LDH-1 is 1233 mg·g^-1 for CR,594mg·g^-1 for MO and 262mg·g^-1 of RR,respectively.

关 键 词：层状双金属氢氧化物 形貌 水-乙二醇为溶剂 吸附染料 

分 类 号：O622[理学—有机化学]