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HomeKey Engineering MaterialsKey Engineering Materials Vol. 521Immobilization of Iron Nanoparticles on Multi...

Immobilization of Iron Nanoparticles on Multi Substrates and its Reduction Removal of Chromium (VI) from Waste Streams

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Abstract:

This article describes the in-situ synthesis and immobilization of iron nanoparticles on several substrates at room temperature using NaBH₄ as a reducing agent and ascorbic acid as capping agent. The method is very effective in protecting iron nanoparticles from air oxidation for more than 30 days. Substrates used to immobilize iron nanoparticles are spherical polymer resins (size of 100–200 mesh) and novel carbon substrates prepared from high temperature carbonization of e-spun nylon and polyacrylonitrile fabrics. Iron nanoparticles (40–100nm) immobilized sample showed higher activity for the reductive removal of hazardous hexavalent Cr (VI) compared to free floating iron nanoparticles at ambient temperature. Iron immobilized substrates has a great potential to be used not only for the removal of Cr (VI) in waste stream but also for oxygen scavenger for food packaging.

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Periodical:

Key Engineering Materials (Volume 521)

Pages:

153-162

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.521.153

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Online since:

August 2012

Authors:

Abdelaziz Rahy, Kap Seung Yang, Christopher Bunker, Mallikarjuna N. Nadagouda, Duck J. Yang

Keywords:

Cr(VI) Reduction, In Situ Synthesis, Iron Nanoparticle, Substrate

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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