Micro-mesoporous iron oxides with record efficiency for the decomposition of hydrogen peroxide: Morphology driven catalysis for the degradation of organic contaminants

K. J. Datta, M. B. Gawande, K. K R Datta, V. Ranc, J. Pechousek, M. Krizek, J. Tucek, R. Kale, P. Pospisil, R. S. Varma, Teddy Asefa, G. Zoppellaro, R. Zboril

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

A template-free solid-state synthesis of a morphologically controlled and highly organized iron(iii)oxide micro-mesoporous Fenton catalyst has been engineered through a simple two-step synthetic procedure. The 3D nanoassembly of hematite nanoparticles (5-7 nm) organized into a rod/flower-like morphology shows the highest rate constant reported to date for the decomposition of H2O2 (1.43 × 10-1 min-1) with superior efficiency for the degradation of aromatic (phenol, benzene, ethylbenzene) and chlorinated (trichloroethylene) pollutants in contaminated water. The morphological arrangement of nanoparticles is therefore considered one of the key variables that drive catalysis.

Original languageEnglish
Pages (from-to)596-604
Number of pages9
JournalJournal of Materials Chemistry A
Volume4
Issue number2
DOIs
Publication statusPublished - 2015

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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    Datta, K. J., Gawande, M. B., Datta, K. K. R., Ranc, V., Pechousek, J., Krizek, M., Tucek, J., Kale, R., Pospisil, P., Varma, R. S., Asefa, T., Zoppellaro, G., & Zboril, R. (2015). Micro-mesoporous iron oxides with record efficiency for the decomposition of hydrogen peroxide: Morphology driven catalysis for the degradation of organic contaminants. Journal of Materials Chemistry A, 4(2), 596-604. https://doi.org/10.1039/c5ta08386a