通过响应表面方法利用过氧化纳米颗粒在水系统中优化多西环素的降解
Nurul Nazihah Amerhaider Nuar1, Siti Nurul Ain Md Jamil1,2, Thomas Shean Yaw Choong3,4
1Department of Chemistry, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang, Selangor 43400, Malaysia.
ACS omega
|March 24, 2025
概括
这项研究开发了一种新的方法,使用涂的过氧化纳米颗粒 (DEX@nCPs(DEX)) 与铁和酸一起从水中去除多西环素 (DOX),实现90%的降解.
科学领域:
- 环境化学环境化学
- 纳米技术纳米技术
- 水处理 处理水的方法
背景情况:
- 抗生素残留物,如多西环素 (DOX),对环境和公共健康构成重大风险.
- 从水系统中有效地去除制药污染物对于可持续的水资源管理至关重要.
研究的目的:
- 开发和优化一种异质的芬顿式工艺,以提高多西环林降解的速度.
- 研究氧化纳米颗粒 (DEX@nCPs(DEX),Fe(II) 和酸 (OA) 在DOX去除中的协同效应.
主要方法:
- 使用X射线光电子谱学 (XPS) 合成和描述DEX@nCPs(DEX).
- 使用中心复合设计 (RSM-CCD) 的响应表面方法来优化反应条件.
- 通过拾取物和光发光分析识别反应性物种.
主要成果:
- 在最佳条件下 (2 g/L DEX@nCPs(DEX,pH 5,420分钟) 实现了90%的DOX去除,比单独的DEX@nCPs(DEX) /Fe(II) 提高了20%.
- 降解跟随第一阶动力学 (k1 = 0.0047分−1),具有很高的模型预测准确性 (R2 = 0.996).
- 基基 (•OH) 被确定为主要的活性物种,负责80%以上的降解.
结论:
- 德克斯@nCPs (DEX) /Fe (II) /OA系统是一种高效的异质芬顿式法,用于去除多克西环素.
- 这种方法为减轻水中的制药污染提供了一个有希望的解决方案.
- 该研究通过创新的水处理技术,有助于推进可持续的环境管理实践.
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