Heterogeneous activation of peroxymonosulfate by different ferromanganese oxides for tetracycline degradation: Structure dependence and catalytic mechanism

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

	Heterogeneous activation of peroxymonosulfate by different ferromanganese oxides for tetracycline degradation: Structure dependence and catalytic mechanism
	He, Jie; Yang, Qinxue; Yang, Xiaofang; Yan, Ying; Sun, Chuang; Wu, Hanjun; Wang, Dongsheng
刊名	CHEMICAL ENGINEERING JOURNAL
	2018-09-15
卷号	348 页码:263-270
关键词	Peroxymonosulfate Ferromanganese oxides Crystal structure Sulfate radicals
ISSN号	1385-8947
文献子类	Article
英文摘要	In this work, ferromanganese oxides (FMOs) synthesized with different Fe and Mn ratio using sol-gel method showed good activity in the activation of peroxymonosulfate (PMS) for tetracycline degradation. The structure and surface characterizations of the FMOs were measured using XRD, BET and XPS. The variation of the catalytic performance of FMOs in the degradation of TC was investigated with varied initial conditions. The FMO-46 structured as FeMnO3 with cubic structure could activate PMS efficiently due to the large surface area and surface Mn(III) sites. While the high catalytic activity of FMO-73 was attributed to the high percentage content of surface Fe(II) and Mn(II). The more vicinities of Fe and Mn exist on the surface of FMOs result in a better catalytic activity towards PMS and degradation of TC. The catalytic mechanism was elucidated by detecting the reactive oxidation species generated using ESR measurement and radical scavengers. It was found that Mnoxides with Fe-regulated-surface active sites were expected to enhance the catalytic activity in the generation of SO4 center dot(-). The experimental results demonstrated that SO4 center dot(-) had a higher contribution to degrade tetracycline in PMS/FMO system than center dot OH. This study proves that surface regulated FMOs can efficiently activate PMS to degrade refractory organic pollutants as an environmentally friendly catalyst.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41149]
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	He, Jie,Yang, Qinxue,Yang, Xiaofang,et al. Heterogeneous activation of peroxymonosulfate by different ferromanganese oxides for tetracycline degradation: Structure dependence and catalytic mechanism[J]. CHEMICAL ENGINEERING JOURNAL,2018,348:263-270.
APA	He, Jie.,Yang, Qinxue.,Yang, Xiaofang.,Yan, Ying.,Sun, Chuang.,...&Wang, Dongsheng.(2018).Heterogeneous activation of peroxymonosulfate by different ferromanganese oxides for tetracycline degradation: Structure dependence and catalytic mechanism.CHEMICAL ENGINEERING JOURNAL,348,263-270.
MLA	He, Jie,et al."Heterogeneous activation of peroxymonosulfate by different ferromanganese oxides for tetracycline degradation: Structure dependence and catalytic mechanism".CHEMICAL ENGINEERING JOURNAL 348(2018):263-270.