Effect of short chain aliphatic carboxylic acids for sorption of uranyl on rutile Zeta potential and in situ ATR-FTIR studies

G Singh 1 G Mercier-Bion 1, 2 G Lefevre 3 E Simoni 1
2 LAPA - UMR 3685 - Laboratoire Archéomatériaux et Prévision de l'Altération
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : Migration of radionuclides in aqueous system is a matter of great environmental concern due to their acute and long-term toxicity. This study seeks to address the sorption of uranyl on rutile in presence of short-chain aliphatic carboxylic acids by zeta potential analysis and in situ ATR-IR spectroscopy. Point of zero charge of rutile was significantly shifted with the addition of carboxylic acids/uranyl ions separately in solution but it was negligible when organics and uranyl ions were added in the suspension. In situ ATR-IR data for uranyl sorption was evidenced by an absorption band of uranyl as(UO2) at 915 cm−1.
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Submitted on : Tuesday, November 22, 2016 - 10:10:27 AM
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G Singh, G Mercier-Bion, G Lefevre, E Simoni. Effect of short chain aliphatic carboxylic acids for sorption of uranyl on rutile Zeta potential and in situ ATR-FTIR studies. Journal of Industrial and Engineering Chemistry, Elsevier, 2016, 35, pp.325 - 331. ⟨http://www.sciencedirect.com/science/article/pii/S1226086X16000137⟩. ⟨10.1016/j.jiec.2016.01.008⟩. ⟨cea-01400529⟩

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