Abstract
Iron hydr(oxide) based multi-walled nanotubes (Fe-CNTs) nanocomposite was synthesized, and its adsorptive potential for BrO3- removal from synthetic and commercially available bottled water samples was tested. Residual BrO3- concentration was determined using ultra-performance liquid chromatography-tandem mass. Spectroscopic and morphological studies revealed that anchored Fe ions on the nanocomposites surface/in the walls were responsible for BrO3- adsorption without causing structural defects to CNTs. Rapid adsorption kinetics was observed, accomplishing 65-85% adsorption at varied concentrations in 5 minutes. Elution study showed optimum BrO3- recovery with 0.1 M HCl. Bottled water samples treatment with Fe-CNTs nanocomposite showed residual BrO3- concentration below instrumental detection limit. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.