The synthesis and structural characterisation (Fourier transform infrared, FTIR spectrometry, scanning electron microscopy, SEM and energy-dispersive X-ray, EDX) of amino-modified silicates (unloaded L1, and aspirin-loaded, L2) are reported. The optimal conditions for the extraction of aspirin from water by the modified silicate material were determined as a function of the mass of the extracting agent and the pH of the aqueous solution. The optimum mass was found to be 0.08–0.10 g with 99.9% removal of aspirin. Maximum extraction of aspirin by the material was observed at pH 4. The kinetics, the removal capacity of the material, as well as its recycling, were investigated. The results indicate that (i) the process is fast and (ii) the removal capacity for the drug is greater than that of previously reported materials and (iii)the modified silicate can be easily recycled. These data along with the low cost involved in the production of the material led to the conclusion that the modified silicate has the required potential for industrial use. Molecular simulation calculations suggest that one unit of aspirin interacts with one unit of the modified silicate L1 through hydrogen bond formation between the amine functional group of the silicate and the oxygen donor atoms of aspirin. Final conclusions are given.

报告了氨基改性硅酸盐（未加载的 L1 和加载阿司匹林的 L2）的合成和结构表征（傅里叶变换红外光谱、FTIR 光谱、扫描电子显微镜、SEM 和能量色散 X 射线、EDX）。通过改性硅酸盐材料从水中提取阿司匹林的最佳条件被确定为提取剂质量和水溶液pH值的函数。发现最佳质量为 0.08–0.10 g，阿司匹林去除率为 99.9%。在 pH 值为 4 时观察到材料对阿司匹林的最大提取。研究了动力学、材料的去除能力及其回收。结果表明 (i) 过程速度快，(ii) 药物去除能力大于先前报道的材料，(iii) 改性硅酸盐可以轻松回收。这些数据以及该材料生产所涉及的低成本得出的结论是，改性硅酸盐具有工业应用所需的潜力。分子模拟计算表明，一个单位的阿司匹林与一个单位的改性硅酸盐 L1 通过硅酸盐的胺官能团和阿司匹林的氧供体原子之间形成氢键而相互作用。给出最终结论。分子模拟计算表明，一个单位的阿司匹林与一个单位的改性硅酸盐 L1 通过硅酸盐的胺官能团和阿司匹林的氧供体原子之间形成氢键而相互作用。给出最终结论。分子模拟计算表明，一个单位的阿司匹林与一个单位的改性硅酸盐 L1 通过硅酸盐的胺官能团和阿司匹林的氧供体原子之间形成氢键而相互作用。给出最终结论。