食品与机械2017，Vol.33Issue(4)：75-80,6.DOI:10.13652/j.issn.1003-5788.2017.04.015
Fe3O4@Vc磁性纳米粒子对Cr(Ⅵ)的吸附性能
The Study of Adsorption of Cr(Ⅵ) Ions Using Magnetic Ascorbic Acid-coated Fe3O4 Nanoparticles
阳晶 1李忠海1
作者信息
- 1. 中南林业科技大学食品科学与工程学院,湖南长沙410004
- 折叠
摘要
Abstract
Magnetic Ascorbic Acid-coated Fe3O4 Nanoparticles were successfully synthesized via a hydrothermal route.The resulting products were characterized by Transmission electron microscope,Fourier transform infrared spectra and X-ray diffraction.Various factors affecting the uptake behavior were discussed,including the pH,adsorption time,adsorbent dosage and initial concentration on the absorption of Cr (Ⅵ).Moreover,the thermodynamics and dynamics of the hexavalent chromium ion adsorption were also studied.The results showed that a maximum adsorption capacity was 39.12 mg/g for Cr (Ⅵ) at pH 1.50 and the absorption can be up to 85％.The adsorption performance of magnetic nanoparticles in line with both the Langmuir adsorption of Cr (Ⅵ) thermodynamic model and HO secondary dynamic adsorption one.关键词
Fe3O4@Vc磁性纳米粒子/吸附/Cr(Ⅵ)Key words
Magnetic Ascorbic Acid-coated Fe3O4 Nanoparticles/adsorption/Cr (Ⅵ)引用本文复制引用
阳晶,李忠海..Fe3O4@Vc磁性纳米粒子对Cr(Ⅵ)的吸附性能[J].食品与机械,2017,33(4):75-80,6.
