通过ZIF-67从水溶液中有效地去除甲氨酸化物和多西氨酸化物
Ke Li1, Miaomiao Chen1, Lei Chen1
1Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun, 130118, China.
Heliyon
|September 16, 2024
概括
泽奥利特伊米达酸框架-67 (ZIF-67) 纳米颗粒有效地从水中去除甲素和多西环素抗生素. 这种可重复使用的吸附剂显示出高容量和稳定性,为净化水提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学 化学 化学
背景情况:
- 水中的抗生素污染对环境和健康构成重大风险.
- 迫切需要有效和具有成本效益的方法来从水溶液中去除抗生素.
研究的目的:
- 合成和表征ZIF-67纳米颗粒,用于从水中去除甲化 (CTC) 和甲化 (DOX).
- 研究ZIF-67对这些抗生素的吸附性能和机制.
主要方法:
- 在室温下合成ZIF-67纳米粒子.
- 进行了吸附实验,以研究pH值,剂量,温度,接触时间,初始度和共存离子的影响.
- 描述技术包括SEM,TEM,FT-IR,BET,XPS,TGA和泽塔潜力分析.
主要成果:
- 在303K时,ZIF-67对CTC (1411.68 mg/g) 和DOX (1073.28 mg/g) 具有很高的吸附能力.
- 吸附遵循伪二阶动力学和Sips模型.
- 在短时间内,在广泛的pH范围内,实现了高清除率 (>97%).
- ZIF-67表现出极好的稳定性和可重复使用性.
结论:
- ZIF-67是一种高效且稳定的吸附剂,用于从水中去除CTC和DOX.
- 吸附机制涉及孔隙填充,静电相互作用和π-π相互作用.
- 大面积和高效性能使ZIF-67成为抗生素废水处理的有希望的材料.
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