Improving PMS oxidation of organic pollutants by single cobalt atom catalyst through hybrid radical and non-radical pathways

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Improving PMS oxidation of organic pollutants by single cobalt atom catalyst through hybrid radical and non-radical pathways
	Xu, Haodan; Jiang, Ning; Wang, Da; Wang, Lihong; Song, Yifan; Chen, Zhiqiang; Ma, Jun; Zhang, Tao
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2020-04
卷号	263 页码:1-3
关键词	Single-atom catalyst Peroxymonosulfate Hybrid oxidation Non-radical oxidation
ISSN号	0926-3373
英文摘要	Highly efficient single-atom catalysts attracted much research interest recently. Here we investigated the mechanism and application potential of a single cobalt atom catalyst (Co-N-C) in improving peroxymonosulfate (PMS) oxidation of several organic pollutants. With low cobalt content (0.45 at%), the Co-N-C was more active than Co3O4 for catalytic oxidation, and the PMS/Co-N-C oxidation achieved high pollutant removal rates over 60 h' continuous flow reaction. Degradation of the selected pollutants followed distinct radical and non-radical pathways. Radical reaction dominated for the degradation of benzotriazole and diatrizoate ; in comparision, non-radical oxidation was also significant during the degradation of 5-benzoyl-4-hydroxy-2-ethoxybenzenesulfonic acid and 2,4-dichlorophenol (2,4-DCP). The PMS/Co-N-C utilized more PMS oxidation capacity than PMS/Co2+ (100% vs. 86%) for the degradation of 2,4-DCP. The non-radical oxidation cannot be ascribed to singlet oxygen which has been frequently reported. The hybrid reaction pathways will make this PMS/Co-N-C oxidation process promising in removing complex water pollutants.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44947]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Xu, Haodan,Jiang, Ning,Wang, Da,et al. Improving PMS oxidation of organic pollutants by single cobalt atom catalyst through hybrid radical and non-radical pathways[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2020,263:1-3.
APA	Xu, Haodan.,Jiang, Ning.,Wang, Da.,Wang, Lihong.,Song, Yifan.,...&Zhang, Tao.(2020).Improving PMS oxidation of organic pollutants by single cobalt atom catalyst through hybrid radical and non-radical pathways.APPLIED CATALYSIS B-ENVIRONMENTAL,263,1-3.
MLA	Xu, Haodan,et al."Improving PMS oxidation of organic pollutants by single cobalt atom catalyst through hybrid radical and non-radical pathways".APPLIED CATALYSIS B-ENVIRONMENTAL 263(2020):1-3.