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题名: Excellent photo-Fenton catalysts of Fe-Co Prussian blue analogues and their reaction mechanism study
作者: Li, Xuning1, 2, 3;  Liu, Jiayi1, 2, 3;  Rykov, Alexandre I.1, 2;  Han, Hongxian4, 5;  Jin, Changzi1, 2;  Liu, Xin1, 2;  Wang, Junhu1, 2
关键词: Fe-Co Prussian blue ;  Mossbauer spectroscopy ;  Heterogeneous Fenton mechanism ;  Water coordinated iron ;  Singlet oxygen
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
发表日期: 2015-12-01
DOI: 10.1016/j.apcatb.2015.05.033
卷: 179, 页:196-205
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Environmental ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Two kinds of Fe-Co Prussian blue analogues (Fe-Co PBAs) with different iron valence state, Fe-3[Co(CN)(6)](2)center dot 12H(2)O and Fe[Co(CN)(6)]center dot 2H(2)O, were developed as the photo-Fenton catalysts for in-depth investigation of the heterogeneous Fenton reaction mechanism. These two catalysts showed exceptionally high efficiencies for the degradation of Rhodamine B. The efficient redox cycling of iron species in the Fe-Co PBAs photo-Fenton process was deeply explored by Mossbauer spectroscopy. The excellent photo-Fenton activities of these Fe-Co PBAs were ascribed to the existence of highly dispersed water coordinated iron sites and abundant vacancies in the metal-organic-frameworks. Singlet oxygen was identified by radical scavenger experiments and electron paramagnetic resonance spectroscopy, which plays a key role in the photo-Fenton process. Based on these comprehensive experimental results, a novel radical reaction mechanism was proposed. This work not only opens up a new avenue for the application of Fe-Co PBAs, but also gives a deeper insight into the mechanisms of heterogeneous Fenton reactions. (C) 2015 Elsevier B.V. All rights reserved.
关键词[WOS]: ADVANCED OXIDATION PROCESSES ;  ORGANIC POLLUTANTS ;  RHODAMINE-B ;  WASTE-WATER ;  MOSSBAUER-SPECTROSCOPY ;  HETEROGENEOUS CATALYST ;  HYDROGEN-PEROXIDE ;  METHYLENE-BLUE ;  VISIBLE-LIGHT ;  IRON-OXIDES
语种: 英语
WOS记录号: WOS:000359873800023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146483
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Catalysts & New Mat Aerosp, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Solar Energy, Dalian 116023, Peoples R China
5.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Li, Xuning,Liu, Jiayi,Rykov, Alexandre I.,et al. Excellent photo-Fenton catalysts of Fe-Co Prussian blue analogues and their reaction mechanism study[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2015,179:196-205.
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