2015
DOI: 10.1002/jctb.4667
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Role of Mg in mesoporous MgFe2O4 for efficient catalytic ozonation of Acid Orange II

Abstract: BACKGROUND: An ozonation catalyst needs to be recycled easily and to exhibit high activity in view of its practical application in wastewater treatment. In this study, magnetic mesoporous MgFe 2 O 4 was successfully prepared and used as a new ozonation catalyst for degradation of Acid Orange II (AOII). The role of Mg in MgFe 2 O 4 was revealed to explain the high activity by catalytic experiments and XPS analysis. RESULTS: The degradation efficiency of AOII in the MgFe 2 O 4 /O 3 process exceeds 90% over a wid… Show more

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Cited by 66 publications
(22 citation statements)
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“…Owing to the characteristics of magnetic response and easy separation from the reaction system using external magnets, many iron‐based spinel type of bimetallic oxides such as MFe 2 O 4 (M = Mn, Fe, Cu, Co, Ni, etc.) have been reported with high activity in PMS activation for the oxidation of organic pollutants . The problem of metal leaching can also be reduced by the strong metal–metal bonding interactions in the spinel structures .…”
Section: Introductionmentioning
confidence: 99%
“…Owing to the characteristics of magnetic response and easy separation from the reaction system using external magnets, many iron‐based spinel type of bimetallic oxides such as MFe 2 O 4 (M = Mn, Fe, Cu, Co, Ni, etc.) have been reported with high activity in PMS activation for the oxidation of organic pollutants . The problem of metal leaching can also be reduced by the strong metal–metal bonding interactions in the spinel structures .…”
Section: Introductionmentioning
confidence: 99%
“…All samples showed isotherms of type IV and exhibited hysteresis loops of type H3, indicating that they contained mesopores (2–50 nm) with narrow slit like shapes. The sharply increased adsorption volume at a P/P 0 of 0.95 indicated the existence of large pores . The pore size distributions in the mesoporous and macroporous regions are shown in the embedded figure.…”
Section: Resultsmentioning
confidence: 97%
“…The sharply increased adsorption volume at a P/P 0 of 0.95 indicated the existence of large pores. 35 The pore size distributions in the mesoporous and macroporous regions are shown in the embedded figure. It can be noted that the La 0.9 Ca 0.1 FeO 3 was mainly comprised of small pores (≤10 nm) while both large pores and small pores were found in the other oxides.…”
Section: Determination Of Surface Property Determination Of Surface Areamentioning
confidence: 99%
“…The high‐resolution spectrums of Fe 2p are illustrated in Figure b. The broad Fe 2p 3/2 spectrum can be deconvoluted into three peaks, corresponding to Fe 3+ sub‐peak at A‐site (710.1 eV), Fe 3+ sub‐peak at B‐site (711.7 eV) and shake‐up satellite peak at 718.9 eV, respectively ,. The high‐resolution O 1s spectrum (Figure c) are fitted into three peaks with binding energy at 529.6 eV, 530.8 eV and 532.6 eV, which can be ascribed to the typical characteristic of metal‐oxygen lattice bonds, surface‐adsorbed hydroxyl ion/water molecules and low oxygen co‐ordination, respectively ,.…”
Section: Resultsmentioning
confidence: 99%