Removal of thorium(IV) from aqueous solutions by natural sepiolite-Reference-Cited by-同舟云学术

Removal of thorium(IV) from aqueous solutions by natural sepiolite

Published:2016-11-09 Issue:3 Volume:105 Page:187-196
ISSN:2193-3405
Container-title:Radiochimica Acta
language:en
Short-container-title:

Author:

Esen Erden Kadriye¹,Donat Ramazan²

Affiliation:

1. Pamukkale University, Denizli Vocational School of Technical Sciences, Department of Electricity and Energy, 20160 Denizli, Turkey

2. Pamukkale University, Faculty of Science and Arts, Department of Chemistry, 20070 Denizli, Turkey

Abstract

Abstract Natural sepiolite has been tested as a potential sorbent for the removal of Th(IV) from aqueous solutions by batch technique. Effects of various parameters on the adsorption process have been investigated. Under optimum conditions, Th(IV) was adsorbed with high adsorption efficiency. The results indicated that sorption of Th(IV) on sepiolite was strongly affected by pH values and temperature. The adsorption patterns of thorium on the sepiolite adsorbent followed the Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherms. The thermodynamic data (ΔH°, ΔS°, ΔG°) are calculated from the temperature-dependent sorption isotherms. The results suggest that sorption process of Th(IV) on sepiolite is spontaneous and endothermic.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry

Link

https://www.degruyter.com/document/doi/10.1515/ract-2016-2667/pdf

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