Institute of Environmental Science, School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
Molecules. 2023 Jul 5;28(13):5214. doi: 10.3390/molecules28135214.
As typical environmental endocrine disruptors and nonsteroidal anti-inflammatory drugs, bisphenol A and ibuprofen in water supplies can cause great harm to the ecological environment and human health. In this study, magnetic covalent organic framework composites FeO@COF-300 were synthesized by the hydrothermal method and used to remove bisphenol A and ibuprofen from water. FeO@COF-300 could be rapidly separated from the matrix by external magnetic fields, and could selectively adsorb bisphenol A and ibuprofen in the presence of coexisting compounds such as phenol, Congo red, and amino black 10B. The removal efficiency of ibuprofen was 96.12-98.52% at pH in the range of 2-4 and that of bisphenol A was 92.18-95.62% at pH in the range of 2-10. The adsorption of bisphenol A and ibuprofen followed a pseudo-second-order kinetic and Langmuir model, and was a spontaneous endothermic process with the maximum adsorption amounts of 173.31 and 303.03 mg∙g, respectively. The material presented favorable stability and reusability, and the removal efficiency of bisphenol A and ibuprofen after 5 cycles was still over 92.15% and 89.29%, respectively. Therefore, the prepared composite FeO@COF-300 exhibited good performance in the adsorption of bisphenol A and ibuprofen in water.
作为典型的环境内分泌干扰物和非甾体类抗炎药，水中的双酚 A 和布洛芬会对生态环境和人类健康造成极大危害。本研究通过水热法合成了磁性共价有机框架复合材料 FeO@COF-300，用于从水中去除双酚 A 和布洛芬。FeO@COF-300 可以通过外部磁场快速从基体中分离出来，并可以在共存化合物如苯酚、刚果红和氨基黑 10B 存在的情况下选择性地吸附双酚 A 和布洛芬。在 pH 值为 2-4 的范围内，布洛芬的去除效率为 96.12-98.52%，在 pH 值为 2-10 的范围内，双酚 A 的去除效率为 92.18-95.62%。双酚 A 和布洛芬的吸附符合准二级动力学和朗缪尔模型，是一个自发的吸热过程，最大吸附量分别为 173.31 和 303.03mg∙g。该材料具有良好的稳定性和可重复使用性，经过 5 次循环后，双酚 A 和布洛芬的去除效率仍分别超过 92.15%和 89.29%。因此，所制备的复合材料 FeO@COF-300 在水中吸附双酚 A 和布洛芬方面表现出良好的性能。
