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具有低生物毒性的单原子Mo-Co催化剂,用于可持续降解具有高电离潜力的有机污染物

Zhuan Chen¹, Faliang An², Yayun Zhang³

¹Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.

Proceedings of the National Academy of Sciences of the United States of America

|July 10, 2023

概括

一种新型的双金属-单原子催化剂 (SAC) 通过激活过氧硫酸盐 (PMS) 有效地降解有机污染物. 这种环保的催化剂表现出卓越的性能和低毒性,用于可持续的水处理.

科学领域:

环境催化剂环境催化剂
材料科学材料科学材料科学
水处理处理水的方法

背景情况:

单原子催化剂 (SAC) 在环境催化中提供高效率.
开发有效的催化剂来降解持久性有机污染物仍然是一个挑战.

研究的目的:

为了研究双金属-单原子催化剂 (Co-Mo SAC) 的过氧硫酸盐 (PMS) 激活.
评估其在降解高电离潜在有机污染物的性能.

主要方法:

综合和描述Co-Mo SAC. 的情况.
密度函数理论 (DFT) 计算以了解催化机制.
使用Co-Mo SAC/PMS系统对的试验性降解.

主要成果:

在Co-Mo SAC中的Mo位点促进了电子转移,显著增强了PMS激活.
与CoCl2-PMS相比,醇降解率提高了19.4倍.
证明了优异的催化稳定性和在10天内降解600mg/L的效率,即使在恶劣的条件下.

结论:

双金属Co-Mo SAC对有机污染物的可持续降解非常有效.
催化剂具有微不足道的毒性,使其适用于环保水处理.
这项工作为设计用于环境修复和其他应用的先进SAC提供了洞察力.

关键词:

电子转移是电子的转移.环境整治环境整治合金可催化剂的可催化作用一个原子催化剂

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