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Retention and selectivity behavior of some lantshanides using bentonite dolomite as a natural material

M. R. Abass, A. B. Ibrahim, and M. M. Abou-Mesalam

Hot Laboratories Centre, Egyptian Atomic Energy Authority, Cairo, Egypt

 

E-mail: mohamed.ragab2014300@yahoo.com

Received: 22 July 2020  Accepted: 23 March 2021

Abstract:

Bentonite dolomite mixture composites were prepared by precipitation technique. The composition of these composite materials was established by different analytical tools; IR, XRD, TGA&DTA, XRF, and BET. X-ray peak broadening analysis was used to evaluate the crystallite size and lattice strain by Scherrers formula and Williamson–Hall (WH) analysis. The variation of adsorption of 152+154Eu3+, La3+, Ce3+, and Sm3+ onto studied materials was carried out and the equilibrium time was carried out after 24 h. The capacity of radionuclide (152+154Eu3+) and some lanthanides (La3+, Ce3+, and Sm3+) were investigated, and all studied materials were selective for 152+154Eu3+.

Keywords: Bentonite; Dolomite; Crystalline; Capacity; Radionuclide; Lanthanides

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-021-01621-y

 

Chemical Papers 75 (8) 3751–3759 (2021)

Monday, August 08, 2022

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