Sorption of Cd2+ on Clay Mineral/Hydroxyapatite Nanocomposites

被引：7
|
作者：
Pazourkova, Lenka [1 ,2 ]
Kupkova, Jana [1 ,2 ]
Hundakova, Marianna [1 ,2 ]
Seidlerova, Jana [1 ]
Martynkova, Grazyna Simha [1 ,2 ]
机构：
[1] VSB Tech Univ Ostrava, Nanotechnol Ctr, 17 Listopadu 15-2172, Ostrava 70833, Czech Republic
[2] VSB Tech Univ Ostrava, Innovat Ctr Excellence IT4, 17 Listopadu 15-2172, Ostrava 70833, Czech Republic
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2016年 / 16卷 / 08期
关键词：
Montmorillonite; Vermiculite; Hydroxyapatite; Nanocomposite; Sorption; REMOVAL;
D O I：
10.1166/jnn.2016.12557
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, the surfaces of montmorillonite (Mt) and vermiculite (Ver) were utilized as substrate for in situ preparation of hydroxyapatite (HAp) nanocomposite. Nanocomposites of clay mineral/HAp were investigated as sorbents of cadmium cations (Cd2+). Two different processes of sorption were compared-(1) dynamic and (2) static (maintaining the solutions containing Cd2+ with sorbents for 24 h in constant conditions). The samples were characterized using atomic absorption spectrometry (AAS) and X-ray powder diffraction (XRD) analysis. The results show that nanocomposites of clay mineral/HAp have higher sorption capacity than pure clays. Comparison of sorption techniques reveals small differences between sorption on Mt clay and its composites.
引用
收藏
页码：7788 / 7791
页数：4
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