Electrochemical Synthesis of Layer Double Hydroxides, Its Characterization, and Performance Study for Removal of Nitrate and Arsenic

Green rust (GR) is an important intermediate Layered Double Hydroxides (LDHs) which exist in oxidative transformation of iron(II) phase. Anionic and cationic species can replace their corresponding parts in the layered structure, and different species can also be accumulated in between the layers. G...

Full description

Saved in:
Bibliographic Details
Published in:AIP conference proceedings 2012-03
Main Authors: Haider, Md, Gomes, Jewel, Urbanczyk, Kevin, Cocke, David, Mcwhinney, Hylton, Irwin, George, Bernazzani, Paul
Format: Article
Language:English
Subjects:
Aluminum
Arsenic
Hydroxides
Magnesium
Nitrates
Transformations
Waste water
X-rays
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Green rust (GR) is an important intermediate Layered Double Hydroxides (LDHs) which exist in oxidative transformation of iron(II) phase. Anionic and cationic species can replace their corresponding parts in the layered structure, and different species can also be accumulated in between the layers. GR can play an important role in wastewater remediation, such as reduction and removal of toxic compounds. An afford was made to synthesize LDH electrochemically, and to characterize it by Mossbauer, x-ray diffraction, scanning electron microscopy/energy dispersive x-ray analysis, x-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopic techniques. GR was used to remove nitrate and arsenic from wastewater. The optimized conditions for removal of these water pollutants were also investigated. The resistance against oxidation of GR was increased using dopents, such as magnesium and aluminum, so that it can be used for water treatment in remote areas.
ISSN:0094-243X