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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
Author(s) -
Dandapat Anirban,
Huang Youju,
Gnayem Hani,
Sasson Yoel
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201601399
Subject(s) - bismuth , catalysis , mesoporous material , formic acid , nanoparticle , nanocomposite , materials science , chromium , chemical engineering , inorganic chemistry , spinel , nuclear chemistry , nanotechnology , chemistry , organic chemistry , metallurgy , engineering
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 0.8 Br 0.2 /Al 2 O 3 ) 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 0.8 Br 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.