Abd El-Monaem Eman M, Eltaweil Abdelazeem S, Elshishini Hala M, Hosny Mohamed, Abou Alsoaud Mohamed M, Attia Nour F, El-Subruiti Gehan M, Omer Ahmed M
Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, 163, Horrya Avenue, Alexandria, Egypt.
Arab J Chem. 2022 May;15(5):103743. doi: 10.1016/j.arabjc.2022.103743. Epub 2022 Jan 29.
During COVID-19 crisis, water pollution caused by pharmaceutical residuals have enormously aggravated since millions of patients worldwide are consuming tons of drugs daily. Antibiotics are the preponderance pharmaceutical pollutants in water bodies that surely cause a real threat to human life and ecosystems. The excellent characteristics of chitosan such as nontoxicity, easy functionality, biodegradability, availability in nature and the abundant hydroxyl and amine groups onto its backbone make it a promising adsorbent. Herein, we aimed to provide a comprehensive overview of recent published research papers regarding the removal of antibiotics by chitosan composite-based adsorbents. The structure, ionic form, optimum removal pH and λ of the most common antibiotics including Tetracycline, Ciprofloxacin, Amoxicillin, Levofloxacin, Ceftriaxone, Erythromycin, Norfloxacin, Ofloxacin, Doxycycline, Cefotaxime and Sulfamethoxazole were summarized. The development of chitosan composite-based adsorbents in order to enhance their adsorption capacity, reusability and validity were presented. Moreover, the adsorption mechanisms of these antibiotics were explored to provide more information about adsorbate-adsorbent interactions. Besides the dominant factors on the adsorption process including pH, dosage, coexisting ions, etc. were discussed. Moreover, conclusions and future recommendations are provided to inspire for further researches.
在新冠疫情危机期间，由于全球数百万患者每天消耗大量药物，药物残留导致的水污染大幅加剧。抗生素是水体中主要的药物污染物，无疑对人类生命和生态系统构成了真正威胁。壳聚糖具有无毒、易于功能化、可生物降解、在自然界中易于获取以及主链上有丰富的羟基和胺基等优异特性，使其成为一种很有前景的吸附剂。在此，我们旨在全面概述近期发表的有关基于壳聚糖复合材料的吸附剂去除抗生素的研究论文。总结了四环素、环丙沙星、阿莫西林、左氧氟沙星、头孢曲松、红霉素、诺氟沙星、氧氟沙星、多西环素、头孢噻肟和磺胺甲恶唑等最常见抗生素的结构、离子形式、最佳去除pH值和λ值。介绍了为提高基于壳聚糖复合材料的吸附剂的吸附能力、可重复使用性和有效性所做的进展。此外，还探讨了这些抗生素的吸附机制，以提供更多关于吸附质 - 吸附剂相互作用的信息。此外，还讨论了吸附过程中的主要影响因素，包括pH值、用量、共存离子等。此外，还给出了结论和未来建议，以启发进一步的研究。
