Synthesis of Organically Templated Nanoporous Tin(II/IV) Phosphate for Radionuclide and Metal Sequestration
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- 作者：Dawn M. Wellman ; Shas V. Mattigod ; Kent E. Parker ; Steve M. Heald ; Chongmin Wang ; and Glen E. Fryxell
- 刊名：Inorganic Chemistry
- 出版年：2006
- 出版时间：March 20, 2006
- 年：2006
- 卷：45
- 期：6
- 页码：2382 - 2384
- 全文大小：106K
- 年卷期：v.45,no.6(March 20, 2006)
- ISSN：1520-510X
文摘
Nanoporous tin(II/IV) phosphate materials, with spherical morphology, have been synthesized using cetyltrimethylammonium chloride[CH3(CH2)15N(CH3)3Cl] as the surfactant. The structure of thematerial is stable at 500 
C; however, partial oxidation of thematerial occurs with redox conversion of Sn2+ to Sn4+, resulting ina mixed SnII/SnIV material. Preliminary batch contact studies wereconducted 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 fromsolution.
C; however, partial oxidation of thematerial occurs with redox conversion of Sn2+ to Sn4+, resulting ina mixed SnII/SnIV material. Preliminary batch contact studies wereconducted 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 fromsolution.