Poly(cyclotriphosphazene-co-phloroglucinol)PCPP as a solid phase extractant for preconcentrative separation of uranium(VI) from aqueous solution
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Abstract
Poly(cyclotriphosphazene-co-phloroglucinol) (PCPP) microspheres, a new solid phase extraction for extracting uranium(VI), synthesized via one-pot precipitation copolymerization. The PCPP microspheres were characterized by FT-IR, SEM/EDS, zeta potential and N2 adsorption/desorption isotherms. Through the extraction experiment to evaluate the extraction behavior of the PCPP microspheres for uranium(VI). The extractant can achieve the optimal effect under the conditions of contact time with 60 min, pH = 3.5, initial concentration 100 mg L−1 and extractant dosage 0.70 g L−1. The extraction behavior obeyed with the pseudo second-order model and Langmuir isotherm model.
Keywords
Polyphosphazenes PCPP microspheres Uranium(VI) Solid phase extractantNotes
Acknowledgements
We gratefully acknowledge the anonymous reviewers for their constructive comments which have improved the quality of this paper. We also acknowledge the research fund of Hunan Provincial Education Department (No. 15C1169) and the Graduate Science Fund of university of south China.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
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