Synergistically enhancing Fenton-like degradation of organics by in situ transformation from Fe3O4 microspheres to mesoporous Fe, N-dual doped carbon

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Synergistically enhancing Fenton-like degradation of organics by in situ transformation from Fe3O4 microspheres to mesoporous Fe, N-dual doped carbon
	Feng, Hongru; Song, Shuang; Zhang, Xiaole; He, Zhiqiao; Hua, Jianan; Li, Shuqi; Zeng, Tao
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018-12-15
卷号	645 页码:550-559
关键词	Fe/N-codoped carbon Fenton-like Peroxymonosulfate Graphitic N and Fe-N sites Organics degradation
ISSN号	0048-9697
文献子类	Article
英文摘要	Nanocarbon materials are emerging as alternative activators of peroxymonosulfate (PMS) for organics decomposition. However, the relatively low activity and complex syntheses hindered their practical application and innovation with respect to rational design of carbocatalysts is highly desired. Herein, an in situ replication and transformation strategy was employed to facilely convert porous Fe3O4 microspheres into novel Fe/N codoped large-pore mesoporous carbon spheres (M Fe/NC) as Fenton-like catalysts for PMS activation. Benefiting from the abundance of active sites induced by dual heteroatom doping, the enhanced active site exposure due to the unique mesoporous structure, and the high stability of carbon component, the derived M Fe/NC was superior to the pristine Fe3O4 for PMS activation to degrade various organics and was efficient over a wide pH range (2-9). Compared with the proposed mechanisms of previous reports, both radical (surface-bound SO4 center dot(-) and center dot OH) and nonradical (O-1(2) and direct oxidation) pathways are involved in the MFe/NC/PMS system. Furthermore, experimental observations in combination with DFT calculations reveal that graphitic N and Fe-N-4 sites serve as dual reaction centers in the catalysis. This research opened an avenue for development of novel multi-doped carbocatalysts used to activate PMS for sustainable remediation. (C) 2018 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41055]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Feng, Hongru,Song, Shuang,Zhang, Xiaole,et al. Synergistically enhancing Fenton-like degradation of organics by in situ transformation from Fe3O4 microspheres to mesoporous Fe, N-dual doped carbon[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,645:550-559.
APA	Feng, Hongru.,Song, Shuang.,Zhang, Xiaole.,He, Zhiqiao.,Hua, Jianan.,...&Zeng, Tao.(2018).Synergistically enhancing Fenton-like degradation of organics by in situ transformation from Fe3O4 microspheres to mesoporous Fe, N-dual doped carbon.SCIENCE OF THE TOTAL ENVIRONMENT,645,550-559.
MLA	Feng, Hongru,et al."Synergistically enhancing Fenton-like degradation of organics by in situ transformation from Fe3O4 microspheres to mesoporous Fe, N-dual doped carbon".SCIENCE OF THE TOTAL ENVIRONMENT 645(2018):550-559.