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Adsorption behavior of Eu(III) on partially Fe(III)- or Ti(IV)-coated silica

Hee-Jung Im*, Kyoung Kyun Park and Euo Chang Jung

Author Affiliations

Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute, 150 Deokjin-dong, Yuseong-gu, Daejeon, 305-353, Republic of Korea

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Nanoscale Research Letters 2012, 7:51  doi:10.1186/1556-276X-7-51

Published: 5 January 2012


The adsorption behavior of Eu(III) onto silica surface, which was partially coated with Fe(III) or Ti(IV), was investigated to determine Fe(III) or Ti(IV) effects on the surface reaction of lanthanides on mineral surfaces in groundwater. Compared with a parallel uncoated silica, the Fe(III)-coated silica did not enhance the adsorption of Eu(III). However, enhanced adsorption of Eu(III) on the Ti(IV)-coated silica was observed by increasing the amount of Ti(IV) on the silica surface.

partially coated silica; Ti(IV) coating effects; enhanced adsorption; surface complexation.