Volume 22, Issue 4 p. 1244-1247
Communication

Dual Effect of Manganese Oxide Micromotors: Catalytic Degradation and Adsorptive Bubble Separation of Organic Pollutants

Owies M. Wani

Owies M. Wani

Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland

These authors contributed equally to this work.

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Muhammad Safdar

Muhammad Safdar

Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland

These authors contributed equally to this work.

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Dr. Niko Kinnunen

Dr. Niko Kinnunen

Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland

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Prof. Janne Jänis

Corresponding Author

Prof. Janne Jänis

Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland

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First published: 25 November 2015
Citations: 70

Graphical Abstract

Manganese oxide (MnO2) based micromotors were employed for water remediation. The dual effect of MnO2 microparticles led to a greater than 90 % of decolorization of non-biodegradable organic dyes in just 1 h, without the need for external agitation or bubble generation. These findings suggest high potential of MnO2 micromotors for decontamination of organic pollutants from wastewaters or natural water reserves.

Abstract

Manganese oxide (MnO2) based micromotors exhibiting a dual effect, that is, catalytic degradation and adsorptive bubble separation, were employed for water remediation. The dual effect of MnO2 microparticles led to a greater than 90 % of decolorization of non-biodegradable organic dyes in just 1 h, without the need for external agitation or bubble generation. These findings suggest high potential of MnO2 micromotors for decontamination of organic pollutants from wastewaters or natural water reserves.