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Heterogeneous activation of Oxone by substituted magnetites Fe3-xMxO4 (Cr, Mn, Co, Ni) for degradation of Acid Orange II at neutral pH
Wei, GL; Liang, XL; He, ZS; Liao, YS; Xie, ZY; Liu, P; Ji, SC; He, HP; Li, DQ; Zhang, J; Zhang J(张静)
2015
Source PublicationJOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
ISSN1381-1169
EISSN1873-314X
Volume398Pages:86-94
SubtypeArticle
AbstractIn this study, the effect of incorporation of transition metals (i.e., Co, Mn, Cr, and Ni) into the magnetite on the reactivity towards Oxone activation was investigated at neutral pH. The magnetite samples were characterized by XRD and EXAFS. Co, Cr, and Ni were in the valences of +2, +3, and +2, respectively, while Mn was in the valences of +2 and +3. These cations occupied the octahedral sites of magnetite, but the distribution of Mn and Ni on the octahedral sites of magnetite surface increased with an increase of substitution extent. The activity of magnetites in Oxone activation was investigated through Acid Orange II (AOII) degradation at an initial pH of 7.0 with or without phosphate-buffered solution. In neutral medium, the AOII degradation by Mn, Cr, and Ni substituting magnetites followed pseudo-first-order kinetics. The incorporation of Co, Mn, and Ni improved the catalytic activity of magnetite in the order Mn
KeywordSubstituted magnetite Heterogeneous degradation Oxone EXAFS Sulfate radicals
Subject AreaChemistry
DOI10.1016/j.molcata.2014.11.024
Indexed BySCI ; EI
Language英语
WOS Research AreaChemistry, Physical
WOS SubjectChemistry
WOS IDWOS:000352115600012
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Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228358
Collection中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Wei, GL,Liang, XL,He, ZS,et al. Heterogeneous activation of Oxone by substituted magnetites Fe3-xMxO4 (Cr, Mn, Co, Ni) for degradation of Acid Orange II at neutral pH[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2015,398:86-94.
APA Wei, GL.,Liang, XL.,He, ZS.,Liao, YS.,Xie, ZY.,...&张静.(2015).Heterogeneous activation of Oxone by substituted magnetites Fe3-xMxO4 (Cr, Mn, Co, Ni) for degradation of Acid Orange II at neutral pH.JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,398,86-94.
MLA Wei, GL,et al."Heterogeneous activation of Oxone by substituted magnetites Fe3-xMxO4 (Cr, Mn, Co, Ni) for degradation of Acid Orange II at neutral pH".JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL 398(2015):86-94.
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