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

doi:10.1002/slct.201601399

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

Institute of Chemistry

Research output: Contribution to journal › Article › peer-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- BiOCl_0.8Br_0.2/Al₂O₃) using ethanol as reducing agent. Those films were applied as reusable catalysts for the reduction of highly toxic Cr^VI ions into Cr^III by formic acid at room temperature. Different amounts of bismuth oxyhalides were loaded with alumina to generate Pt NPs and found 2 mol% BiOCl_0.8Br_0.2 loaded film showed optimum activity towards Pt generation and highest catalytic conversion of Cr^VI with the rate constant 0.177 min⁻¹ which is very high considering any thin film as catalyst.

Original language	English
Pages (from-to)	620-623
Number of pages	4
Journal	ChemistrySelect
Volume	2
Issue number	2
DOIs	https://doi.org/10.1002/slct.201601399
State	Published - 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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10.1002/slct.201601399

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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.",

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AU - Sasson, Yoel

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AB - 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.

KW - Pt NPs generation

KW - bismuth oxyhalide

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

Abstract

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Keywords

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