Formation of Zirconium Hydrophosphate Nanoparticles and Their Effect on Sorption of Uranyl Cations.

Nataliya Perlova, Yuliya Dzyazko, Olga Perlova, Alexey Palchik, Valentina Sazonova

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Article in Nanoscale research letters, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Nataliya PerlovaDepartment of Physical and Colloid Chemistry, Odessa I. I. Mechnikov National University of the MES of Ukraine, Dvoryanska str., 2, Odesa, 65082, Ukraine. n.perlova@yandex.ua.

Yuliya DzyazkoDepartment of Sorption and Membrane Materials and Processes, V.I. Vernadskii Institute of General and Inorganic Chemistry of the NAS of Ukraine, Palladin ave. 32/34, Kyiv, 03142, Ukraine.

Olga PerlovaDepartment of Physical and Colloid Chemistry, Odessa I. I. Mechnikov National University of the MES of Ukraine, Dvoryanska str., 2, Odesa, 65082, Ukraine.

Alexey PalchikDepartment of Sorption and Membrane Materials and Processes, V.I. Vernadskii Institute of General and Inorganic Chemistry of the NAS of Ukraine, Palladin ave. 32/34, Kyiv, 03142, Ukraine.

Valentina SazonovaDepartment of Physical and Colloid Chemistry, Odessa I. I. Mechnikov National University of the MES of Ukraine, Dvoryanska str., 2, Odesa, 65082, Ukraine.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Organic-inorganic ion-exchangers were obtained by incorporation of zirconium hydrophosphate into gel-like strongly acidic polymer matrix by means of precipitation from the solution of zirconium oxychloride with phosphoric acid. The approach for purposeful control of a size of the incorporated particles has been developed based on Ostwald-Freundich equation. This equation has been adapted for precipitation in ion exchange materials. Both single nanoparticles (2-20 nm) and their aggregates were found in the polymer. Regulation of salt or acid concentration allows us to decrease size of the aggregates approximately in 10 times. Smaller particles are formed in the resin, which possess lower exchange capacity. Sorption of U(VI) cations from the solution containing also hydrochloride acid was studied. Exchange capacity of the composites is ≈2 times higher in comparison with the pristine resin. The organic-inorganic sorbents show higher sorption rate despite chemical interaction of sorbed ions with functional groups of the inorganic constituent: the models of reaction of pseudo-first or pseudo-second order can be applied. In general, decreasing in size of incorporated particles provides acceleration of ion exchange. The composites can be regenerated completely, this gives a possibility of their multiple use.

Indexed as

CompositeNanoparticlesOrganic-inorganic ion-exchangerUraniumZirconium hydrophosphate

Identifiers

PMID28330187

DOI10.1186/s11671-017-1987-y

PMCPMC5360751

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