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一、前言 放射性核素在各种屏障材料上吸附分配比的测定及吸附机理的研究,是当前环境放射化学中的重要研究课题之一。放射性核素在硅酸盐矿物上的吸附机理,通常看作是阳离子交换反应。根据离子交换平衡理论,在水相pH值恒定及含有大量钠离子的条件下,放射性核
I. Introduction Radionuclides in a variety of barrier material adsorption ratio determination and adsorption mechanism of research, is currently one of the important research topics in environmental radiochemistry. The adsorption mechanism of radionuclides on silicate minerals is usually regarded as a cation exchange reaction. According to the theory of ion exchange equilibrium, under the condition of a constant pH in the aqueous phase and a large amount of sodium ions, the radionuclide