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在现场利用共存的金属离子来制造单原子催化剂,以促进像芬顿这样的活动

Jiaxing Yu¹, Shaohan Wang¹, Huajie Zhong²

¹MOE Key Laboratory of Bioinorganic and Synthetic Chemistry/KLGHEI of Environment and Energy Chemistry, School of Chemistry, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou, Guangdong, 510275, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|December 8, 2025

概括

本研究介绍了废水处理的新策略,使用无金属催化剂捕获铜离子并创建单原子催化剂. 这种方法有效地降解有机污染物,并同时去除重金属.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
催化剂是一种催化剂.

背景情况:

工业废水经常含有重金属和有机污染物,需要单独的处理方法.
重金属可以作为芬顿式催化剂中的活性位点,但它们在有机污染物降解的现场利用尚未得到充分探索.

研究的目的:

开发一种在现场利用工业废水中共存的重金属 (Cu2+) 的方法,以加强有机污染物的降解.
设计一个没有金属的催化剂,并设有固定点,以有效地捕获重金属和制造单原子催化剂.

主要方法:

使用无金属的TQBQ-共价有机框架 (COF) 与预先设计的金属-2N位.
在现场捕获Cu2+离子,在一分钟内制造单原子催化剂 (SAC).
研究了在模拟和真实废水中有机污染物的降解和重金属的去除.

主要成果:

在现场制造的Cu-SAC显著提高了可见光吸收和电荷分离,提高了类似芬顿的催化性能240倍.
单点氧 (1O2) 和光生成孔 (h+) 被确定为主要的活性物种.
在具有高污染物度的实际工业废水中实现了有机污染物和重金属的有效协同去除.

结论:

采用TQBQ-COF策略,可以有效地在现场从共存的重金属制造SAC,用于废水处理.
这种方法提供了一个"用废物处理废物"的解决方案,在降解有机污染物和同时去除重金属方面表现出高效率.
为异质水处理技术的催化剂设计提供了新的见解.

关键词:

协价有机框架协价有机框架芬类似的反应.在现场合成.一个原子催化剂.清除污染水的方法

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