Excellent performance of mesoporous Co3O4/MnO2 nanoparticles in heterogeneous activation of peroxymonosulfate for phenol degradation in aqueous solutions

Liang, Hanwen; Sun, Hongqi; Patel, A.; Shukla, P.; Zhu, Z.; Wang, Shaobin

doi:10.1016/j.apcatb.2012.09.001

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Authors

Liang, Hanwen

Sun, Hongqi

Patel, A.

Shukla, P.

Zhu, Z.

Wang, Shaobin

Date

2012

Type

Journal Article

Metadata

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Citation

Liang, H. and Sun, H. and Patel, A. and Shukla, P. and Zhu, Z. and Wang, S. 2012. Excellent performance of mesoporous Co3O4/MnO2 nanoparticles in heterogeneous activation of peroxymonosulfate for phenol degradation in aqueous solutions. Applied Catalysis B: Environmental. 127: pp. 330-335.

Source Title

Applied Catalysis B: Environmental

DOI

10.1016/j.apcatb.2012.09.001

ISSN

09263373

School

Department of Chemical Engineering

URI

http://hdl.handle.net/20.500.11937/6087

Collection

Curtin Research Publications

Abstract

Mesoporous α-MnO2 and its supported Co3O4 nanoparticles were synthesized, characterized and tested in heterogeneous activation of peroxymonosulfate (PMS) for phenol degradation in aqueous solution. α-MnO2 supported Co3O4 presented as nanorod particles and showed H2 redox reduction at low temperature. Bulk α-MnO2 and Co3O4 could activate peroxymonosulfate to generate sulfate radicals for phenol degradation but at low activity. Co3O4/MnO2 nanoparticles exhibited much high activity in peroxymonosulfate activation for phenol degradation with 100% conversion in 20 min and 3 wt% is the optimum Co loading. Phenol degradation followed a first order kinetics. Stability tests also showed that Co3O4/MnO2 presented stable performance in phenol degradation in several runs.