Mechanism of sorption of pertechnetate onto ordered mesoporous carbon |
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| Authors: | Đ. Petrović A. Đukić K. Kumrić B. Babić M. Momčilović N. Ivanović Lj. Matović |
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| Affiliation: | 1. Vin?a Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001, Belgrade, Serbia
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| Abstract: | Ordered mesoporous carbon (OMC) was used as an adsorbent for the removal of pertechnetate (TcO4 ?) anion. The maximum uptake (93 %) of TcO4 ? was obtained after 60 min of contact. The adsorption of TcO4 ? is almost pH-independent in very wide pH region (from 4.0 to 10.0). Maximum K d of 6.6 × 103 cm3 g?1 was found at pH 2.0. TcO4 ? interacts with carboxylic functional groups present at the surface of the OMC by displacing the OH? ions with TcO4 ? via ion exchange mechanism. |
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