A solid porous adsorbent with amino and carboxyl is developed successfully via one-pot Friedel-Crafts alkylation reaction. The resulting materials are highly chemically stable and the surface area can be changed by different ratios of initial aromatic monomers. The critical factors effect adsorption performances such as temperature, contact time, ionic strength and pH are studied by using batch adsorption experiments. The adsorption process is fast and can be well simulated with the pseudo-second-order model, yielding a rate constant of 1.31 × 10⁻³ min⁻¹. The sorption isotherms are correlated with the Langmuir isotherms, according to which the highest adsorption amount (46.74 mg g⁻¹) is measured at pH 8 under 308 K. According to FT-IR and XPS analysis, uranium is chelated by amino and carboxyl groups, indicating that the addition of tryptophan significantly increases the adsorption capacity. These results provide a new design strategy for the development of novel adsorbents for the recovery of uranium (VI).

通过一锅法式（Friedel-Crafts）烷基化反应成功开发了具有氨基和羧基的固体多孔吸附剂。所得材料具有高度化学稳定性，并且可以通过不同比例的初始芳族单体来改变表面积。通过分批吸附实验研究了影响吸附性能的关键因素，如温度，接触时间，离子强度和pH。吸附过程很快，可以用伪二级模型很好地模拟，产生的速率常数为1.31×10 ^-3 min ^-1。吸附等温线与Langmuir等温线相关，据此，最高吸附量（46.74 mg g ^-1）是在308 K的pH值为8的条件下测量的。根据FT-IR和XPS分析，铀被氨基和羧基螯合，表明色氨酸的添加显着提高了吸附能力。这些结果为开发用于铀（VI）回收的新型吸附剂提供了新的设计策略。