Journal
INORGANIC CHEMISTRY
Volume 45, Issue 6, Pages 2382-2384Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic051949v
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Nanoporous tin(II/IV) phosphate materials, with spherical morphology, have been synthesized using cetyltrimethylammonium chloride [CH3(CH2)(15)N(CH3)(3)Cl] as the surfactant. The structure of the material is stable at 500 degrees C; however, partial oxidation of the material occurs with redox conversion of Sn2+ to Sn4+, resulting in a mixed Sn-II/Sn-IV material. Preliminary batch contact studies were conducted to assess the effectiveness of nanoporous tin phosphate, NP-SnPO, in sequestering redox-sensitive metals and radionuclides, technetium(VII), neptunium(V), thorium(IV), and a toxic metal, chromium(VI), from aqueous matrixes. Results indicate that tin(II) phosphate removed > 95% of all contaminants investigated from solution.
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