化工进展2011，Vol.30Issue(11)：2549-2553,5.
羧甲基化壳聚糖修饰磁性Fe_3O_4纳米粒子去除Cu（Ⅱ）离子
Removal of Cu（Ⅱ） ions by carboxymethylated-chitosan modified magnetic Fe_3O_4 nanoparticles
摘要
Abstract
A novel magnetic nano-adsorbent was prepared by covalent binding of high-deacetylated-degree carboxymethylated chitosan onto the surface of magnetic Fe3O4 nanoparticles,which were fabricated by a chemical coprecipitation method.The adsorbent was characterized by transmission electron microscopy（TEM）,Fourier transform infrared spectroscopy（FT-IR）,X-ray diffraction patterns（XRD）,and vibrating sample magnetomete（rVSM）.Moreover,the adsorption property of the magnetic nano-adsorbent for Cu（Ⅱ） ions was also investigated.The results showed that the adsorption capability was significantly affected by pH,and the adsorption capacity was the best at pH=5.The adsorption data obeyed the Langmuir equation with a maximum adsorption capacity of 71.43 mg/g and a Langmuir adsorption equilibrium constant of 0.0543 L/mg.关键词
功能化纳米粒子/壳聚糖/Cu（Ⅱ）/吸附/Langmuir模型Key words
functionalized nanoparticles/chitosan/copper（Ⅱ） ions/adsorption/Langmuir isotherm分类
化学化工引用本文复制引用
程昌敬,左芳,吴莉莉..羧甲基化壳聚糖修饰磁性Fe_3O_4纳米粒子去除Cu（Ⅱ）离子[J].化工进展,2011,30(11):2549-2553,5.基金项目
中央高校基本科研业务费专项资金 （）
西南民族大学引进人才资助 （）
西南民族大学化学一级学科硕士点建设资金项目 （）
