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Recycling Molybdenum Oxides from Waste Molybdenum Disilicides: Oxidation Experimental Study and Photocatalytic Properties
Oxidation Experimental Study and Photocatalytic Properties.
Oxidation Experimental Study and Photocatalytic Properties.
Oxidation Experimental Study and Photocatalytic Properties.
Oxidation Experimental Study and Photocatalytic Properties.
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2019 (English)In: Oxidation of Metals, ISSN 0030-770X, E-ISSN 1573-4889, Vol. 92, no 1-2, p. 1-12Article in journal (Refereed) Published
Abstract [en]

To recycle elemental molybdenum from waste molybdenum disilicide (MoSi2) heating elements, the MoSi2 was first disintegrated to MoO3 and SiO2 powders in air at a pest oxidation temperature of 500 °C. X-ray diffraction (XRD) patterns confirmed the completion of the pest oxidation reaction. The mixture of MoO3 and SiO2 powders were heated to 950 °C in a tube furnace to evaporate MoO3, and the XRD patterns of the residue showed that only SiO2 was left in the crucible, confirming that the MoO3 was removed through thermal evaporation. The collected MoO3 crystals had a striped morphology. Photocatalytic performance of MoO3 showed superior activity in comparison with commercial MoO3 and P25 for the degradation of methylene blue under visible light irradiation. The photocatalytic degradation activity of MoO3 synthesized by thermal evaporation at 950 °C was 99.25% in 60 min.

Place, publisher, year, edition, pages
Springer, 2019. Vol. 92, no 1-2, p. 1-12
Keywords [en]
Oxidation Waste MoSi2 Recycling MoO3 Thermal evaporation Photocatalytic properties
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-73853DOI: 10.1007/s11085-019-09909-xISI: 000473237400001Scopus ID: 2-s2.0-85064549207OAI: oai:DiVA.org:ltu-73853DiVA, id: diva2:1313790
Note

Validerad;2019;Nivå 2;2019-07-12 (johcin)

Available from: 2019-05-06 Created: 2019-05-06 Last updated: 2019-08-15Bibliographically approved

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Akhtar, Farid

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