Chromium adsorption by aligned carbon nanotubes supported ceria nanoparticles [An article from: Chemosphere]

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Description:
Ceria nanoparticles supported on aligned carbon nanotubes (CeO"2/ACNTs), a novel adsorbent for Cr(VI) from drinking water, were prepared by chemical reaction of CeCl"3 with NaOH in aligned carbon nanotube solution and subsequent heat treatment. The best Cr(VI) adsorption effect of CeO"2/ACNTs occurs at a pH range of 3.0-7.4. The largest adsorption capacity of CeO"2/ACNTs reaches 30.2mgg^-^1 at an equilibrium Cr(VI) concentration of 35.3mgl^-^1 at pH 7.0. The experiment results suggest that CeO"2/ACNTs have great potential applications in environmental protection.