TDPAC studies on the sorption of Hf(IV) onto a silica surface

Authors
Pohlmann, C Degering, D Geckeis, H Thies, WG
Citation
C. Pohlmann et al., TDPAC studies on the sorption of Hf(IV) onto a silica surface, HYPER INTER, 121(1-8), 1999, pp. 313-318
Citations number
11
Categorie Soggetti
Physics
Journal title
HYPERFINE INTERACTIONS
ISSN journal
03043843 → ACNP
Volume
121
Issue
1-8
Year of publication
1999
Pages
313 - 318
Database
ISI
SICI code
0304-3843(1999)121:1-8<313:TSOTSO>2.0.ZU;2-W
Abstract
Hf-181-PAC investigations were undertaken as a contribution to the understa nding of the aquatic chemistry of the tetravalent elements. In solution, th e growth of polymeric species with increasing pH was observed by PAC. For t he sorption of Hf on silica surfaces we found a strong dependence of the PA C results on the pH value. The corresponding sites were assigned to surface complexation and surface precipitation, respectively.