精确净化水的单原子/集群协同作用:在过氧硫酸盐激活中解锁了近100%的电子转移通路
Jian Chen1, Xin Liu1, Aji JiKe1
1College of Chemistry and Chemical Engineering, Precise Synthesis and Function Development Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, PR China.
Journal of hazardous materials
|January 14, 2026
概括
一个新的CoN3/CoNP催化剂通过电子转移通路 (ETP) 通过多氧硫酸盐 (PMS) 有效地降解. 这种先进的氧化过程提供了快速的污染物去除和高矿化率与最小的催化剂使用.
科学领域:
- 环境化学环境化学
- 催化科学 催化科学
- 材料科学 材料科学 材料科学
背景情况:
- 精确控制催化剂电子和电子转移路径 (ETP) 主导的氧化协调结构是具有挑战性的.
- 芬顿式催化剂对于污染物降解至关重要,但往往缺乏效率和选择性.
研究的目的:
- 构建一个CoN3/CoNP混合催化剂,以有效激活过氧硫酸盐 (PMS).
- 研究由电子转移过程 (ETP) 主导的PMS激活机制.
- 为了实现高矿化度的的快速和完全降解.
主要方法:
- 一个CoN3/CoNP混合催化剂的合成.
- 氧硫酸盐 (PMS) 激活用于降解.
- 机制研究包括电子转移通路 (ETP) 分析.
- 密度函数理论 (DFT) 的计算.
主要成果:
- 在20mg/L的催化剂剂量下,CoN3/CoNP/PMS在3分钟内迅速降解了20mg/L的.
- 通过ETP驱动的聚合和基化实现了72.4%的矿化率.
- 证明了一种内球ETP,对富含电子的有机物具有高选择性,并且具有广泛的pH稳定性.
- DFT计算证实了Co纳米集群中增强的电子密度和d频段中心上升,促进了PMS吸附和电子转移.
结论:
- CoN3/CoNP混合催化剂通过主导的内部球ETP有效地激活PMS.
- 这种方法为污染物降解和排毒提供了一种高效和选择性的方法.
- 该研究提出了一种新的策略,用于设计用于环境修复的协同作用的单原子/集群催化剂.
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