气液界面键促进了持续的过氧硫酸盐激活:纳米泡支持的局部性微环境的作用
Jingyi Zhu1, Lingjun Bu1, Shuo Zhang1
1Hunan Engineering Research Center of Water Security Technology and Application, College of Civil Engineering, Hunan University, Changsha 410082, China.
Journal of hazardous materials
|September 17, 2025
概括
纳米气泡通过创造一种性接口来促进催化氧化,从而提高过氧硫酸盐的激活率,从而促进水的净化. 这种方法具有持久的氧化能力,可显著降解微污染物和有机碳.
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:
- 气液界面催化在水资源整治方面是有前途的,但人们对其了解甚少.
- 纳米泡 (NBs) 可以在气液接口上创建有效的异质催化系统.
研究的目的:
- 用纳米泡阐明气液界面催化机制.
- 通过NBs. 调查通过过氧硫酸盐 (PMS) 增强微污染物降解.
主要方法:
- 系统的实验阐明纳米泡介导的气液界面催化.
- 微污染物的降解效率测量使用带有或没有NB的PMS.
- 理论计算以了解界面氧化物离子和PMS之间的相互作用.
主要成果:
- 在中性条件下,纳米气泡在微污染物降解效率上升了80倍.
- 在气液界面的局部氧化物丰富产生了性微环境,增强了PMS激活.
- 界面氧化物离子将PMS中的过氧键能量降低了89%,促进了反应性物种的产生.
- 支持NB的系统表现出持久的氧化能力,在60天内矿化了80-90%的总有机碳,没有补充.
结论:
- 这项研究为气液界面的催化氧化提供了基本的见解.
- 纳米气泡有效地创造了用于水处理的增强异质催化系统.
- 这些发现指导了优化先进的氧化过程,以实现高效的水资源整治.
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