Synthesis and Characterization of Montmorillonite-Supported Zero-Valent Iron Nanoparticles with Application for Preconcentration of Zinc

被引：5
|
作者：
Wang, Jiao [1 ,2 ]
Liu, Guijian [1 ,2 ]
Qi, Cuicui [1 ]
Zhou, Chuncai [1 ]
机构：
[1] Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China
[2] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
来源：
ANALYTICAL LETTERS | 2016年 / 49卷 / 17期
基金：
中国国家自然科学基金;
关键词：
Montmorillonite-supported zero-valent iron nanoparticles; transmission electron microscopy; X-ray diffraction; Zn(II); NANOSCALE ZEROVALENT IRON; REMOVAL; ADSORPTION; REDUCTION; IONS; DECHLORINATION; SPECTROSCOPY; REACTIVITY; PARTICLES; CR(VI);
D O I：
10.1080/00032719.2016.1159219
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Montmorillonite-supported zero-valent iron nanoparticles (nZVI-montmorillonite) were prepared by liquid-phase reduction under ambient atmosphere. Transmission electron microscope images indicated that the presence of montmorillonite decreased the aggregation and the size of iron nanoparticles. A portion of the gaps in the supporting material was filled with nanoparticles. Irregular angular shaped shells were also observed. X-ray diffraction indicated that the reduction rate had a substantial effect on the morphology and size of nanoparticles. nZVI-montmorillonite showed higher adsorption capacity for Zn(II) (9.9038mg/g) compared to nZVI (9.4190mg/g), montmorillonite (1.8835mg/g), and zero-valent iron powder (5.8568mg/g). The material can be used for several repeated applications.
引用
收藏
页码：2766 / 2782
页数：17
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