Series of grafting functionalization on silica microspheres were achieved to mono and bi-functionalized polymers for uranium recovery. Bi-functionalization sorbent is the most effective through improving the sorption capacity and other physico-chemical properties. Completed sorption time reached within 25 min for PAO-MAc/SiO₂ at pH 4 with loading capacity 0.98 mmol U g⁻¹, while the PFORE and Langmuir fitting the kinetics and isotherm plateaus respectively with completely desorption through 15 min using 0.5 M HCl. The sorbent shows high stability in sorption and desorption through minimum 5 cycles. The synthesized PAO-MAc/SiO₂ was successfully applied for uranium recovery from raffinate solution produced in the uranium mining site.

在用于铀回收的单和双官能化聚合物上实现了二氧化硅微球上的一系列接枝官能化。双功能化吸附剂通过提高吸附能力和其他物理化学性质是最有效的。PAO-MAc/SiO ₂在 pH 4 下完成吸附时间达到 25 分钟，负载量为 0.98 mmol U g ^-1，而 PFORE 和 Langmuir 分别拟合动力学和等温线平台，使用 0.5 M HCl 完全解吸 15 分钟。该吸附剂在至少 5 次循环后显示出高吸附和解吸稳定性。合成的PAO-MAc/SiO ₂成功地用于从铀矿场产生的萃余液中回收铀。