Herein, hierarchically porous ZIF-8 (HZIF-8) adsorbents were prepared successfully with the assistance of sodium dodecyl sulfonate (SDS) through a facile one-pot self-assembly method at room temperature, and their adsorption of tetracycline hydrochloride (TCH) was studied in water by bath adsorption experiments. The structural characteristics of the adsorbents were confirmed by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), and N₂ adsorption/desorption measurements. The research results indicated that the final hierarchically porous ZIF-8 with a large Brunauer–Emmett–Teller (BET) specific surface area (1423.78 m² g⁻¹) had a higher TCH adsorption capacity (574.71 mg g⁻¹) than microporous ZIF-8 by improving the mass transfer rate. The adsorption isotherm was expressed well by the Freundlich isotherm model and the kinetic data fit the pseudo-second-order kinetic model better. Mechanistic studies implied that coordinate bonds, π–π interactions and electrostatic interactions played vital roles in the TCH adsorption process based on the effect of pH, zeta potential of adsorbents, and X-ray photoelectron spectroscopy (XPS). Moreover, the addition of SDS altered the ZIF-8 porosity and exposed more active sites of adsorbents. As synthesized, the hierarchically porous ZIF-8 displayed excellent regenerability and could be expected to expand the application range regarding the removal of antibiotics from aqueous solution.

在此，在室温下，通过简便的一锅自组装方法，在十二烷基磺酸钠（SDS）的帮助下成功制备了分级多孔 ZIF-8（HZIF-8）吸附剂，并对其对盐酸四环素（TCH）的吸附进行了研究。通过浴吸附实验在水中进行研究。通过X射线衍射(XRD)、扫描电子显微镜(SEM)、傅里叶变换红外(FT-IR)和N ₂吸附/解吸测量证实了吸附剂的结构特征。研究结果表明，最终的分级多孔 ZIF-8 具有较大的 Brunauer-Emmett-Teller (BET) 比表面积（1423.78 m ²  g ^-1）具有更高的 TCH 吸附容量（574.71 mg g ^-1) 比微孔 ZIF-8 通过提高传质速率。Freundlich等温线模型很好地表达了吸附等温线，动力学数据更符合拟二级动力学模型。机理研究表明，基于 pH 值、吸附剂 zeta 电位和 X 射线光电子能谱 (XPS) 的影响，配位键、π-π 相互作用和静电相互作用在 TCH 吸附过程中起着至关重要的作用。此外，添加 SDS 改变了 ZIF-8 孔隙率并暴露了更多的吸附剂活性位点。合成后，分级多孔 ZIF-8 显示出优异的再生性，有望扩大从水溶液中去除抗生素的应用范围。