Facile one-pot synthesis of lepidocrocite (γ-FeOOH) nanoflakes for water treatment
- 4 June 2013
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in New Journal of Chemistry
- Vol. 37 (8), 2551-2556
- https://doi.org/10.1039/c3nj00509g
Abstract
Lepidocrocite (γ-FeOOH) nanoflakes were synthesized using a simple ethylene glycol (EG) mediated solution method. The obtained γ-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 γ-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.Keywords
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