核化学与放射化学2012，Vol.34Issue(3)：129-141,13.
放射性核素在氧化物、磷酸盐和黏土矿物表面吸附:热力学和微观结构认识
Adsorption of Radionuclides on Oxides, Phosphates and Clay Minerals: Studying on Thermodynamic and Micro-Speciation
摘要
Abstract
In this paper, the sorption of radionuclides on oxides, phosphates and clay minerals has been reviewed to clarify the different steps necessary to obtain reliable sorption data and tried to describe the usefulness of structural investigation at molecular level. The presentation mainly includes the following sections- (1) physicochemical characterization of sorbent's structure and morphology) (2) the surface charge density of sorbent in aqueous solution; (3) the equilibrium constants of protonation and deprotonation on the sorbent's surface; (4) the influences of pH, ionic strength and organic matters on the sorption behaviors of radionuclides; (5) the speciation and structure of radionuclides at solid-water interfaces (6) surface eomplexation model and its application in evaluating the sorption mechanism of radionuclides; (7) the proofs from advanced spectroscopy technologies in this field.关键词
放射性核素/表面吸附/热力学/吸附种态Key words
radionuclides/adsorption/thermodynamic/sorption speciation分类
化学化工引用本文复制引用
范桥辉,牛智伟,许君政,郭治军,吴王锁..放射性核素在氧化物、磷酸盐和黏土矿物表面吸附:热力学和微观结构认识[J].核化学与放射化学,2012,34(3):129-141,13.基金项目
国防科工局高放废物处置专项基金资助项目 （）
国家自然科学基金资助项目(20871062,J1030932) （20871062,J1030932）
教育部博士研究生学术新人奖、兰州大学中央高校基本科研业务费专项资金资助项目(lzujbky-2010-215) （lzujbky-2010-215）
国家同步辐射实验室教育部创新计划资助项目(20090137S) （20090137S）
