RCEES OpenIR  > 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
Yang, Qinxue; Yang, Xiaofang; Yan, Ying; Sun, Chuang; Wu, Hanjun; He, Jie; Wang, Dongsheng
2018-09-15
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume348Pages:263-270
AbstractIn 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.
Department环境水质学国家重点实验室
KeywordPeroxymonosulfate Ferromanganese oxides Crystal structure Sulfate radicals
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/41149
Collection环境水质学国家重点实验室
Recommended Citation
GB/T 7714
Yang, Qinxue,Yang, Xiaofang,Yan, Ying,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 Yang, Qinxue.,Yang, Xiaofang.,Yan, Ying.,Sun, Chuang.,Wu, Hanjun.,...&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 Yang, Qinxue,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.
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