期刊论文

中文

广东化工

1007-1865

2017

44

3

17-19

10.3969/j.issn.1007-1865.2017.03.008

本校为第一机构

文章利用四氧化三铁对水滑石进行磁化改性,通过SEM、FTIR对其形貌进行表征,探究该材料去除水中Cd（Ⅱ）的热力学模型和动力学模型。SEM、FTIR表征结果证明:磁化后表面形态有较大的改善、结构官能团变化不大。实验表明:磁性水滑石对Cd（Ⅱ）的吸附在90 min基本完成,最大吸附量为34.722 mg·g-1,吸附模型符合Langmuir吸附等温模型和Lagergren准二级动力学模型。

Magnetic hydrotalcite （MH） was prepared via Fe3O4 magnetized calcined layered double hydroxides. The product was characterized by SEM, FTIR. Then, the thermodynamic model and dynamic model of remove Cd （Ⅱ） from aqueous solution adsorption were investigated. The results of SEM and FTtR showed that surface morphology of magnetic materials is greatly improved and little change in the structure of the functional groups. The experiment proved that the maximum adsorption for Cd （Ⅱ） within 90 min. The maximum adsorption capacity for Cd （Ⅱ） ...