NDLI: Catalytic wet peroxide oxidation of phenol solution over Fe

Content Provider	Springer Nature Link
Author	Son, Bui Hai Dang Mai, Vo Quang Du, Dang Xuan Phong, Nguyen Hai Cuong, Nguyen Duc Khieu, Dinh Quang
Copyright Year	2016
Abstract	Mn–Fe binary oxides incorporated into diatomite (denoted as FM-diatomite) was prepared by the redox reaction of KMnO$_{4}$ and FeSO$_{4}$ with pH ranging from 3 to 9. The catalytic activities of FM-diatomite were studied for phenol oxidation and were compared with iron oxide modified diatomite (F-diatomite) and manganese oxide modified diatomite (M-diatomite). The obtained catalysts were characterized by scanning electron microscope, powder X-ray diffraction, energy dispersive spectroscopy, transmission electron microscope, X-ray photoelectron spectroscopy, and nitrogen adsorption/desorption isotherms. The results show that Fe–Mn binary oxides were highly dispersed on the diatomite surface in which manganese oxide and iron oxide displayed multiple oxidation states including Mn$^{4+}$, Mn$^{3+}$, Fe$^{2+}$ and Fe$^{3+}$. The phenol oxidation by H$_{2}$O$_{2}$ through the use of Mn–Fe-diatomite as a catalyst was conducted. FM-diatomite exhibited as an excellent catalyst for the total oxidation of phenol and main intermediates (catechol and hydroquinone). The conversion of phenol and main intermediates by means of FM-diatomite was 100 % under 50 min while that by F-diatomite also was 100 % after 110 min but other intermediates still remained. While phenol conversion by M-diatomite was close to zero due to speedy hydroperoxide decomposition over the manganese oxide catalyst. These results show that there was a synergized effect of iron and manganese oxide present in FM-diatomite.
Starting Page	601
Ending Page	611
Page Count	11
File Format	PDF
ISSN	13802224
Journal	Journal of Porous Materials
Volume Number	24
Issue Number	3
e-ISSN	15734854
Language	English
Publisher	Springer US
Publisher Date	2016-10-06
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Diatomite Fe–Mn binary oxides Catalysis Catechol Hydroquinone Characterization and Evaluation of Materials Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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