Using the waste basalt powder, ferric chloride (FeCl₃·6H₂O), ferrous sulfate (FeSO₄·7H₂O), 3-aminotrimethoxysilane (3-TMSPT) and Chitosan (CTS) as raw materials, through hydrothermal synthesis, in-situ synthesis, cross-linking and grafting methods, the amino-modified chitosan/magnetic zeolite composite (NH₂-CTS/MZ) was prepared. The samples were characterized by SEM, XRD, VSM, BET, FTIR and XPS. The removal ability and adsorption mechanism of U(VI) in an aqueous solution by NH₂-CTS/MZ were systematically studied. The results showed that under the conditions of 308 K and pH = 5, NH₂-CTS/MZ reached adsorption equilibrium within 180 min, and the equilibrium adsorption capacity was 749.5 mg·g⁻¹. The adsorption isotherm conforms to the Langmuir isotherm model (R² = 0.998), and the adsorption kinetics conforms to the quasi-secondary kinetic model (R² = 0.987). The adsorption behaviour is a spontaneous endothermic process. This study shows that NH₂-CTS/MZ has a good application prospect in the removal of uranyl ions.

以废玄武岩粉、氯化铁（FeCl ₃ ·6H ₂ O）、硫酸亚铁（FeSO ₄ ·7H ₂ O）、3-氨基三甲氧基硅烷（3-TMSPT）和壳聚糖（CTS）为原料，通过水热合成，采用-原位合成、交联和接枝方法，制备了氨基改性壳聚糖/磁性沸石复合材料（NH ₂ -CTS/MZ）。通过SEM、XRD、VSM、BET、FTIR和XPS对样品进行表征。系统研究了NH ₂ -CTS/MZ对水溶液中U(VI)的去除能力和吸附机理。结果表明，在 308 K 和 pH = 5 的条件下，NH ₂-CTS/MZ在180 min内达到吸附平衡，平衡吸附量为749.5 mg·g ^-1。吸附等温线符合Langmuir等温线模型（R ²  = 0.998），吸附动力学符合准二级动力学模型（R ²  = 0.987）。吸附行为是一个自发的吸热过程。本研究表明NH ₂ -CTS/MZ在去除铀酰离子方面具有良好的应用前景。