分离铯的吸附剂焦磷酸氧锆的合成与表征

Synthesis and Characterization of Zirconyl Pyrophosphate as an Adsorbent for Cesium Separation

摘要: 合成了分离铯的吸附剂焦磷酸氧锆，比较了不同条件下制备的焦磷酸氧锆对铯的吸附性能，并对吸附性能好的焦磷酸氧锆进行了分析与表征。结果表明，在不同条件下制备的焦磷酸氧锆对放射性铯的吸附率相差不大。焦磷酸氧锆化学式为［3ZrO•2HP₂O₇］_n•8.6nH₂O, 为无定型物质，具有良好的热稳定性, 最可几孔径约为1.5 nm，比表面积为180.7m²/g。

Abstract: Zirconyl pyrophosphate was synthesized as an adsorbent for cesium separation in this work. The adsorption properties of zirconyl pyrophosphate prepared under different conditions were investigated. However, the results show little difference. The product with the best adsorption property was analyzed and characterized. Zirconyl pyrophosphate with a chemical formula of ［3ZrO•2HP₂O₇］_n•8.6nH₂O. It has good thermal stability and is an amorphous and porous compound with the pore size of about 1.5 nm. The specific area is 180.7m²/g.