1. Preparation of Htpop material containing active -N-H and its adsorption of U(VI) in aqueous solution.
- Author
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Xu, Yufen and Wang, Yanfei
- Subjects
- *
AQUEOUS solutions , *IMINO group , *LANGMUIR isotherms , *PHOSPHORYL group , *ADSORPTION (Chemistry) , *PHOSPHATE removal (Water purification) , *METAL ions - Abstract
Bis(diphenyl phosphate) imine(Htpop) was synthesized as an adsorbent for the effective removal of U(VI) from aqueous solutions using triphenyl phosphate(TPP) as the starting material. Htpop possesses notable polarity, characterized by the presence of -P O(phosphoryl) and -N-H(imino) functional groups, along with other bulky substituents. It has the capability to form chelates with metal ions, thus enabling the removal of radionuclide U(VI) from aqueous solution. The overall adsorption experiment shows that both phosphoryl and imino groups interact with uranyl ions, and the removal rate reaches 99.53 % at pH 6.0. The adsorption process conforms to the Pseudo-second-order kinetic model and Langmuir isotherm model. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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