The amidoxime -modified X-type zeolite (AO-XZ) was successfully prepared by using X-type zeolite(XZ) as a carrier, iminodiacetonitrile (IDAN) as a nitrile-based precursor, and loading the amidoxime group onto the XZ. Mesoporous structure of XZ was unchanged after modification and the mechanism of adsorption is ion exchange. The adsorption behavior followed the pseudo-secondary kinetics, indicating that chemical adsorption is dominant. The Langmuir model had a good fitting effect (R²≈0.9931), indicating that the adsorption process is dominated by single-layer uniform adsorption, and the maximum adsorption capacity of AO-XZ towards Cs⁺ by Langmuir fitting was 222.2 mg/g. The process of Cs⁺ adsorption by AO-XZ has high adsorption rate (>90%) under neutral conditions and common ion competition. Besides, in the dynamic experiment, the adsorption reached the point of failure after 14 hours. The above results indicate that AO-XZ has good potential for removing Cs⁺ from radioactive wastewater in future practical applications.

通过使用X型沸石（XZ）作为载体，亚氨基二乙腈（IDAN）作为腈基前体，并将mid胺肟基团装载到XZ上，成功制备了胺肟修饰的X型沸石（AO-XZ）。改性后XZ的介孔结构保持不变，吸附机理为离子交换。吸附行为遵循拟二次动力学，表明化学吸附占主导地位。Langmuir模型具有良好的拟合效果（R ² ≈0.9931），这表明吸附过程是由单层均匀的吸附为主，和AO-XZ朝向Cs的最大吸附量⁺由朗缪尔拟合222.2毫克/克。Cs ⁺的过程在中性条件下和常见的离子竞争下，AO-XZ的吸附率很高（> 90％）。此外，在动态实验中，吸附在14小时后达到破坏点。上述结果表明，AO-XZ在未来的实际应用中具有从放射性废水中去除Cs ^+的良好潜力。