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Shape-controlled activation of peroxymonosulfate by single crystal α-Mn2O3 for catalytic phenol degradation in aqueous solution

Paper ID Volume ID Publish Year Pages File Format Full-Text
45061 46395 2014 6 PDF Available
Title
Shape-controlled activation of peroxymonosulfate by single crystal α-Mn2O3 for catalytic phenol degradation in aqueous solution
Abstract

•Single Mn2O3 crystals with different shapes were synthesized.•Mn2O3 showed high effectiveness in activation of peroxymonosulfate.•Cubic Mn2O3 presented higher catalytic activity than octahedra and truncated octahedra.•Phenol degradation on Mn2O3-cubic follows first-order kinetics.

Shape selective reaction on crystallite particles is an important issue in catalytic reactions. In this investigation, Mn2O3 crystals with different shapes were prepared and tested in activation of peroxymonosulfate to produce sulfate radicals for degradation of aqueous phenol. The Mn2O3 shaped in cube, octahedra and truncated octahedra showed different activities in phenol degradation. Cubic Mn2O3 presented the highest activity among the three catalysts with an order of Mn2O3-cubic > Mn2O3-octahedra > Mn2O3-truncated, attributed to high surface area and surface atoms arrangement. In addition, kinetic studies showed that phenol degradation on Mn2O3-cubic follows first-order kinetics with activation energy of 61.2 kJ/mol.

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Keywords
Mn2O3; Shape-control; Phenol degradation; Water treatment; Sulfate radical
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Shape-controlled activation of peroxymonosulfate by single crystal α-Mn2O3 for catalytic phenol degradation in aqueous solution
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 154–155, July–August 2014, Pages 246–251
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us