Abstract: Tetracycline (TC) is a broad-spectrum antibiotic with large production and application at present. Its chemical properties are relatively stable and difficult to metabolize, so it is easy to accumulate in soil and water. The abuse of antibiotics not only increases the drug resistance of bacteria, but also produces resistance genes and induces the production of super-bacteria. Therefore, the harmless treatment of wastewater containing TC is urgent. Adsorption method has the advantages of easy operation, high removal rate, economy, and environmental protection. It is widely considered as an efficient method to remove antibiotics. The adsorption materials used to remove tetracycline from wastewater are different and various. This work mainly summarizes three kinds of common adsorbents: carbon materials, metal organic framework materials, and mineral materials. The adsorption capacity of the above materials for TC is listed, and the effects of pH value, temperature, ionic strength and other factors on the adsorption process of TC are analyzed. On this basis, the fitting of different adsorption kinetics and thermodynamic models when these three kinds of materials adsorb TC is analyzed. It is found that the adsorption kinetics of most materials meets with the quasi-second-order kinetic model, and the adsorption thermodynamics of the Freundlich thermodynamic model are better to describe the adsorption process. In addition, the mechanism involved in the removal of TC is also described. Finally, the advantages and disadvantages of these three kinds of materials in the study of TC adsorption are compared, and the future research focus is prospected, which provides a reference for accelerating the preparation of more economical, efficient and renewable TC removal adsorption materials.

Key words: tetracycline, antibiotic, wastewater, pollution, adsorption, adsorption mechanism

摘要： 四环素(TC)是目前生产和使用量比较大的一种广谱抗生素，其化学性质较稳定且难以代谢而容易富集于土壤和水体中。抗生素的滥用不仅使细菌耐药性增加，而且会产生抗性基因并诱导产生超级细菌，因此对含TC废水的无害化处理刻不容缓。吸附法具有易操作、去除率高、经济、环保等优点，被广泛认为是一种高效去除抗生素方法。吸附法去除废水中四环素所用的吸附材料类型不同、种类繁多，本工作总结了炭质材料、金属有机框架材料和矿物材料这三类常用吸附剂，列举了上述材料对TC的吸附容量，分析了pH值、温度、离子强度和其他因素对TC吸附过程的影响。在此基础上，分析这三类材料吸附TC时不同吸附动力学和热力学模型的拟合情况，发现大多数材料的吸附动力学采用准二级动力学模型而吸附热力学采用Freundlich热力学模型能更好地描述其吸附过程。阐述了去除TC过程中所涉及的机理。对这三类材料吸附TC研究中存在的优势与不足进行比较，展望了今后的研究重点，为加快制备更经济、高效、可再生的TC吸附材料提供参考。

关键词: 四环素, 抗生素, 废水, 污染, 吸附, 吸附机理