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| Synthesis and Adsorptive Removal for Uranium (VI) Ions of Titanate Nanotubes |
| CHANG Yang， ZHANG Linxi， LUO Mingbiao， LIAO Zhenwei， CHEN Zhongsheng |
| Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000 |
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Cite this article:
CHANG Yang ZHANG Linxi LUO Mingbiao LIAO Zhenwei CHEN Zhongsheng. Synthesis and Adsorptive Removal for Uranium (VI) Ions of Titanate Nanotubes. Chin J Mater Res, 2010, 24(4): 424-428.
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Abstract Titanate nanotubes have been synthesized by a hydrothermal method using tetrabutyl as titanium source. The prepared sodium titanate nanotubes were applied in the adsorption of uranium ions. The determination of the structure of the materials by TEM and XRD showed that titanate nanotubes compose of Na2Ti3O7 and H3Ti3O7 with external diameter of 8 nm, tube length up to 2 μm. The investigation of adsorption of uranium ions demonstrated that adsorption capacity growed gradually with the increase of temperature and shock time, and achieved maximum adsorption capacity at pH 5.5. The adsorption isotherm accorded with Langmuir and Freundlich matrix. Thermodynamic studies showed that the adsorption is endothermic spontaneous process. The recovery studies showed that the recovery graduately decrease with the increasing of uranium content. N2 adsorption/desorption tests found that the surface area of titanate nanotubes adsorbed uranium ions were smaller than previous.
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Received: 01 April 2010
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| Fund: Supported by National Defense Pre-Research Foundation of China No.A3420060146, National Natural Science Foundation of Jiangxi Province of China No.2007GZH216 and Youth Science Foundation of Educational Office of Jiangxi Province No.GJJ09527 and the Innovation Fund Project for Graduate Student of East China Institute of Technology No.DYCA10013. |
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