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Cobalt-iron Oxide, Alloy and Nitride: Synthesis, Characterization and Application in Catalytic Peroxymonosulfate Activation for Orange II Degradation
Zhu, Kaixin1,2; Jin, Changzi1; Klencsar, Zoltan3; Ganeshraja, Ayyakannu Sundaram1; Wang, Junhu1
关键词Co-fe Catalysts Advanced Oxidation Processes Peroxymonosulfate Activation Sulfate Radical
刊名CATALYSTS
2017-05-01
DOI10.3390/catal7050138
7
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]ENHANCED HETEROGENEOUS ACTIVATION ; DRIVEN PHOTOCATALYTIC ACTIVITY ; AQUEOUS-ORGANIC POLLUTANTS ; OXYGEN REDUCTION REACTION ; VISIBLE-LIGHT ; FE-CO/SBA-15 CATALYST ; MAGNETIC-PROPERTIES ; FINE NANOPARTICLES ; ADVANCED OXIDATION ; DOPED GRAPHENE
英文摘要In meeting the need for environmental remediation in wastewater treatment and the development of popular sulfate-radical-based advanced oxidation processes (SR-AOPs), a series of Co/Fe-based catalysts with confirmed phase structure were prepared through extended soft chemical solution processes followed by atmosphere-dependent calcination. Powder X-ray diffraction (XRD),scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and Fe-57 Mossbauer spectroscopy were employed to characterize the composition, morphology, crystal structure and chemical state of the prepared catalysts. It was shown that calcination in air, nitrogen and ammonia atmospheres generated Co-Fe catalysts with cobalt ferrite (CoFe2O4), Co-Fe alloy and Co-Fe nitride as dominant phases, respectively. The prepared Co/Fe-based catalysts were demonstrated to be highly efficient in activating peroxymonosulfate (PMS) for organic Orange II degradation. The activation efficiency of the different catalysts was found to increase in the order CoFe2O4 < Co-Fe nitride < Co-Fe alloy. Sulfate radical was found to be the primary active intermediate species contributing to the dye degradation for all the participating catalysts. Furthermore, a possible reaction mechanism was proposed for each of the studied catalysts. This study achieves progress in efficient cobalt-iron catalysts using in the field of SR-AOPs, with potential applications in environment remediation.
语种英语
WOS记录号WOS:000404099100013
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152074
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Hungarian Acad Sci, Energy Res Ctr, Inst Energy Secur & Environm Safety, Nucl Anal & Radiog Dept, Konkoly Thege Miklos Ut 29-33, H-1121 Budapest, Hungary
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Zhu, Kaixin,Jin, Changzi,Klencsar, Zoltan,et al. Cobalt-iron Oxide, Alloy and Nitride: Synthesis, Characterization and Application in Catalytic Peroxymonosulfate Activation for Orange II Degradation[J]. CATALYSTS,2017,7.
APA Zhu, Kaixin,Jin, Changzi,Klencsar, Zoltan,Ganeshraja, Ayyakannu Sundaram,&Wang, Junhu.(2017).Cobalt-iron Oxide, Alloy and Nitride: Synthesis, Characterization and Application in Catalytic Peroxymonosulfate Activation for Orange II Degradation.CATALYSTS,7.
MLA Zhu, Kaixin,et al."Cobalt-iron Oxide, Alloy and Nitride: Synthesis, Characterization and Application in Catalytic Peroxymonosulfate Activation for Orange II Degradation".CATALYSTS 7(2017).
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