Facile one-pot synthesis of lepidocrocite (γ-FeOOH) nanoflakes for water treatment

被引：46
|
作者：
Jia, Yong [1 ,2 ]
Luo, Tao [1 ]
Yu, Xin-Yao [1 ]
Jin, Zhen [1 ]
Sun, Bai [1 ]
Liu, Jin-Huai [1 ]
Huang, Xing-Jiu [1 ]
机构：
[1] Chinese Acad Sci, Inst Intelligent Machines, Res Ctr Biomimet Funct Mat & Sensing Devices, Hefei 230031, Peoples R China
[2] Anhui Univ Chinese Med, Dept Pharm, Hefei 230031, Peoples R China
来源：
NEW JOURNAL OF CHEMISTRY | 2013年 / 37卷 / 08期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
ARSENIC REMOVAL; IRON-OXIDE; PHOTOCATALYTIC PROPERTIES; AQUEOUS-SOLUTION; THIN-FILMS; ADSORPTION; SURFACE; IONS; OXYHYDROXIDES; FERRIHYDRITE;
D O I：
10.1039/c3nj00509g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Lepidocrocite (gamma-FeOOH) nanoflakes were synthesized using a simple ethylene glycol (EG) mediated solution method. The obtained gamma-FeOOH were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The absoption properties of the as-prepared gamma-FeOOH nanoflakes towards toxic As(V) and Cr(VI) ions were investigated. The effects of anions such as Cl-, SO42-, NO3-, HCO3-, CO32-, and PO43- on As(V) removal were also investigated. The results indicated that phosphate was the greatest competitor with As(V) for adsorptive sites. The presence of Cl-, SO42-, and NO3- had no effect on As(V) removal.
引用
收藏
页码：2551 / 2556
页数：6
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