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

作　　者：宋凤丽 丛海峰[2] 李辉波[2] 苏哲[2] 赵善桂 阙骥 林灿生[2] 王孝荣[2] 叶国安[2] 刘志明 

机构地区：[1]环境保护部核与辐射安全中心核燃料与放射性废物部,北京100082 [2]中国原子能科学研究院放射化学研究所,北京102413 [3]中核核电运行管理有限公司,浙江海盐314300

出　　处：《核化学与放射化学》2013年第6期334-338,共5页Journal of Nuclear and Radiochemistry

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1.5nm,比表面积为180.7m2/g。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 180.7 m2/g.

关 键 词：焦磷酸氧锆 吸附 铯 

分 类 号：TL241.15[核科学技术—核燃料循环与材料]