1. Adsorption and separation behavior of strontium and yttrium using a silica-based bis(2-ethylhexyl) hydrogen phosphate adsorbent
- Author
-
Hao Wu, Seong Yun Kim, and Taiga Kawamura
- Subjects
Strontium ,Acid concentration ,Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,chemistry.chemical_element ,Hydrochloric acid ,Yttrium ,Mixed solution ,010403 inorganic & nuclear chemistry ,Hydrogen phosphate ,01 natural sciences ,Pollution ,0104 chemical sciences ,Analytical Chemistry ,chemistry.chemical_compound ,Adsorption ,Nuclear Energy and Engineering ,chemistry ,Nitric acid ,Radiology, Nuclear Medicine and imaging ,Spectroscopy ,Nuclear chemistry - Abstract
(HDEHP + Hexa)/SiO2-P, a silica-based adsorbent, was prepared and used to separate Y(III) from a mixed solution of Sr(II) and Y(III). The adsorption behavior of the adsorbent was investigated using batch tests. The adsorbent exhibited high adsorption performance for Y(III) in low nitric acid concentrations and weak adsorption performance for Y(III) at higher concentrations. In contrast, Sr(II) was not adsorbed in either acid concentration range. The same tendency was observed under hydrochloric acid conditions. Y(III) separation from a mixed solution of Sr(II) and Y(III) was verified by a column test. Overall, the (HDEHP + Hexa)/SiO2-P adsorbent can separate Y(III) from Sr(II).
- Published
- 2021