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在单原子Co-TiO₂中进行光交换调节的界面电子转移,用于在基于酸盐的AOP中增强污染物矿化

Feng Ye¹, Jing-Ru Wang², Ying Ding¹

¹Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.

Environmental science & technology

|August 13, 2025

概括

这项研究开发了一种光交换策略,用于控制用于降解持久有机污染物的催化剂中的电子转移. 这种方法在先进的氧化过程中显著提高了污染物去除效率.

科学领域:

环境化学环境化学
催化剂是一种催化剂.
材料科学材料科学材料科学

背景情况:

持续有机污染物 (POP) 的有效降解对于环境修复至关重要.
基于硫酸盐的先进氧化过程 (AOP) 是有效的,但需要优化催化剂性能.
在异质催化剂中精确控制接口电子转移,是提高POP降解的关键.

研究的目的:

引入光交换策略,以在现场调节单原子Co-TiO2催化剂中的电子转移.
在过氧硫酸盐 (PMS) 激活过程中优化反应性氧化物种的产生.
提高持久性有机污染物的矿化效率.

主要方法:

使用单原子Co-TiO2催化剂的光交换策略的开发.
在现场调节界面电子转移和反应性氧化物种的产生.
理论计算以了解PMS激活和高价值Co-oxo物种形成的机制.
应用暗光间隔系统用于污染物降解.

主要成果:

光交换策略有效调节了电子转移,在非激进和激进路径之间转移.
理论计算证实了高价值Co-oxo物种形成的热力学优势.
暗光间隔系统显著提高了双甲矿化效率,达到62.62%,相比之下,暗光间隔系统的矿化效率为29.50%,持续光线间隔系统的矿化效率为47.81%.
该战略在处理实际焦化废水方面表现出有效性.

结论:

拟议的光调制PMS激活策略为先进的污染物降解提供了一种新的方法.
光开关提供了一个动态控制机制,用于优化AOPs中的催化活性.
这项研究为可持续的废水处理和环境修复提供了一个有希望的解决方案.

关键词:

增强了矿物化的提升.硫酸盐激活激活的方法照片交换机可以切换照片.一个原子催化剂

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