通过易斯酸位点对化物进行高效的激活,以化物为硫胺降解的化物
Qiangling Liu1, Xu Han1, Haoyu Wang1
1State Key Laboratory of Green and Efficient Development of Phosphorus Resources, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, People's Republic of China.
Journal of hazardous materials
|December 12, 2025
概括
铁二硫化物 (FeS2) 激活化物 (ClO2-) 以有效地降解硫胺抗生素 (SAs). 这种新的先进氧化技术利用单片氧用于非激进降解途径.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 硫胺抗生素 (SAs) 是水中的持久污染物.
- 先进的氧化过程 (AOP) 对于去除耐火有机污染物至关重要.
- 化物 (ClO2-) 激活为AOPs提供了一个有前途的途径.
研究的目的:
- 合成铁二硫化物 (FeS2) 用于激活化物 (ClO2-).
- 用FeS2/ClO2-系统研究硫胺抗生素 (SAs) 的降解.
- 为了阐明降解机制,并确定关键的反应性物种.
主要方法:
- 热水合成FeS2. 2的热水合成.
- 用FeS2和ClO2-进行降解实验.
- 用X射线光电子光谱 (XPS) 和胺红外光谱 (Py-IR) 进行表面分析.
- 反应性物种分析和火实验.
主要成果:
- FeS2/ClO2-系统在30分钟内实现了SM2,SMX和STZ95%以上的降解.
- 在FeS2表面上的Fe(III) 种类充当易斯酸位,激活ClO2-.
- 表面Fe(II) 激活O2产生超氧化物 (•O2-).
- 单片氧 (1O2) 被确定为SM2降解的主导物种.
结论:
- FeS2有效地激活ClO2,通过非激进途径有效降解SA.
- 涉及Fe (III) 和Fe (II) 位点的双重激活机制至关重要.
- 这项研究提出了一种新且有效的抗生素去除AOP.
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