The uranium (Ⅵ) adsorption material with stable property was prepared by β - cyclodextrin grafted to silica gel using (3 - aminopropyl) trimethoxysilane as coupling agent, and then ethyl chloroacetate was linked to the polymer of β - cyelodextrin bonded silica gel. FTIR was used to analyze the materials and X - ray photoelectron spectroscopy (XPS) was employed to confirm the reliability of the synthesized materials. Langmuir isotherm and the Lagergren firstorder rate equation were suitable to describe the adsorption process. The result...