Bismuth Oxyhalide Induced Growth of Pt Nanoparticles within Mesoporous Alumina Films and their Use as Reusable Catalyst for Chromium(VI) Reduction

Anirban Dandapat*, Youju Huang, Hani Gnayem, Yoel Sasson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Green and efficient immobilization of catalytically active metal nanoparticles into porous supporting materials and their successful application in environmental remediation is of important scientific interest in practice. Herein, we established a new role of bismuth oxyhalides (BiOX) to produce Pt NPs inside mesoporous alumina to develop the nanocomposite film (Pt- BiOCl0.8Br0.2/Al2O3) using ethanol as reducing agent. Those films were applied as reusable catalysts for the reduction of highly toxic CrVI ions into CrIII by formic acid at room temperature. Different amounts of bismuth oxyhalides were loaded with alumina to generate Pt NPs and found 2 mol% BiOCl0.8Br0.2 loaded film showed optimum activity towards Pt generation and highest catalytic conversion of CrVI with the rate constant 0.177 min−1 which is very high considering any thin film as catalyst.

Original languageAmerican English
Pages (from-to)620-623
Number of pages4
JournalChemistrySelect
Volume2
Issue number2
DOIs
StatePublished - 13 Jan 2017

Bibliographical note

Publisher Copyright:
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • Pt NPs generation
  • bismuth oxyhalide
  • chromium(VI) reduction
  • composite film
  • reusable catalysts

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