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

页码：2551 / 2556

页数：6

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