A novel method for fabricating magnetic hyper-cross-linked polymers (MHCPs) with high Brunauer–Emmett–Teller (BET) specific surface area, large pore volume, and good magnetic properties was developed. The synthesis process of MHCPs included two steps: the preparation of HCPs by external cross-linker and the in situ oxidation of the iron source in the structure of HCPs. On the basis of the systematic investigation of the influences of oxidation time and amount of hydrogen peroxide added, a series of MHCPs with different specific surface area, pore volume, and magnetic responsiveness was controllably prepared with the highest BET specific surface area and maximum saturation magnetization of 729.93 m²/g and 12.4 emu/g, respectively. Furthermore, the adsorption performance of MHCPs with antibiotics was studied by using chloramphenicol (CAP) and tetracycline hydrochloride (TC) as model adsorbates. The kinetics isotherms of CAP and TC followed a pseudo-second-order model, and the adsorption isotherms of them were proved to fit the Langmuir adsorption model. The maximum adsorption capacity of CAP and TC at the temperature of 20 °C could reach 114.94 and 212.77 mg/g, respectively. The above results showed that the MHCPs would be one of the most promising candidates for application in the adsorption of antibiotics.

中文翻译：

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磁性超交联聚合物的制备，用于有效去除水中的抗生素

开发了一种新的磁性超交联聚合物（MHCP）的制造方法，该聚合物具有较高的Brunauer-Emmett-Teller（BET）比表面积，大孔容和良好的磁性。MHCPs的合成过程包括两个步骤：通过外部交联剂制备HCPs和在HCPs结构中原位氧化铁源。在对氧化时间和过氧化氢添加量的影响进行系统研究的基础上，可控制地制备了具有不同比表面积，孔容和磁响应度的一系列MHCP，具有最高的BET比表面积和最大的饱和磁化强度。的729.93 m ²/ g和12.4 emu / g。此外，以氯霉素（CAP）和盐酸四环素（TC）为模型吸附物，研究了MHCPs对抗生素的吸附性能。CAP和TC的动力学等温线遵循伪二级模型，并且证明它们的吸附等温线符合Langmuir吸附模型。CAP和TC在20°C时的最大吸附容量分别可以达到114.94和212.77 mg / g。以上结果表明，MHCPs将是最有前途的候选物之一，可用于吸附抗生素。