Article ID Journal Published Year Pages File Type
228558 Journal of Industrial and Engineering Chemistry 2015 8 Pages PDF
Abstract

•Fe/MWCNTs based nanocomposite was synthesized.•BrO3− remediation from synthetic and commercial water samples was studied.•Fe nanoparticles were actively involved in BrO3− adsorption.•65–85% BrO3− adsorption at various concentrations was accomplished in 5 min.•BrO3− was not detected in treated bottled water samples.

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.

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Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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