Thallium adsorption onto phyllosilicate minerals.
Journal
Environmental science. Processes & impacts
ISSN: 2050-7895
Titre abrégé: Environ Sci Process Impacts
Pays: England
ID NLM: 101601576
Informations de publication
Date de publication:
21 Sep 2022
21 Sep 2022
Historique:
pubmed:
25
5
2022
medline:
24
9
2022
entrez:
24
5
2022
Statut:
epublish
Résumé
The adsorption of thallium (Tl) onto phyllosilicate minerals plays a critical role in the retention of Tl in soils and sediments and the potential transfer of Tl into plants and groundwater. Especially micaceous minerals are thought to strongly bind monovalent Tl(I), in analogy to their strong binding of Cs. To advance the understanding of Tl(I) adsorption onto phyllosilicate minerals, we studied the adsorption of Tl(I) onto Na- and K-saturated illite and Na-saturated smectite, two muscovites, two vermiculites and a naturally Tl-enriched soil clay mineral fraction. Macroscopic adsorption isotherms were combined with the characterization of the adsorbed Tl by X-ray absorption spectroscopy (XAS). In combination, the results suggest that the adsorption of Tl(I) onto phyllosilicate minerals can be interpreted in terms of three major uptake paths: (i) highest-affinity inner-sphere adsorption of dehydrated Tl
Identifiants
pubmed: 35608286
doi: 10.1039/d2em00028h
pmc: PMC9491347
doi:
Substances chimiques
Aluminum Silicates
0
Minerals
0
Silicates
0
Siloxanes
0
Soil
0
muscovite
0
illite
12173-60-3
vermiculite
1318-00-9
Cesium
1KSV9V4Y4I
Smectite
A3N5ZCN45C
Thallium
AD84R52XLF
Clay
T1FAD4SS2M
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1343-1359Références
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