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A magnetically recoverable scavenger for palladium based on thiol-modified magnetite nanoparticles

Paper ID Volume ID Publish Year Pages File Format Full-Text
43457 45970 2007 6 PDF Available
Title
A magnetically recoverable scavenger for palladium based on thiol-modified magnetite nanoparticles
Abstract

Modification of magnetite nanoparticles surfaces with thiol groups leads to a magnetically recoverable scavenger for metals. The magnetic solid removed Pd2+ ions from aqueous and non-aqueous solutions, and it was easily recovered with a magnet with no need of additional separation procedures. Scavenging efficiency of >99% was demonstrated. The magnetically recovered solid containing palladium-catalyzed the conversion of cyclohexene to cyclohexane for at least five successive reactions with TON ∼800 each. Magnetic separation capabilities greatly facilitate the recovery of the metal scavenger and catalyst.

Graphical abstractWe here demonstrate the use of magnetic nanoparticles with appropriated chemical surface modification for recovering valuables, such as metals, by magnetic separation techniques. We prepared a magnetically recoverable scavenger for palladium that could be easily separated from solution as an alternative for solvent-consuming extraction and filtration procedures. Also, the recovered palladium-loaded magnetic solid showed catalytic activity in hydrogenation of olefins.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Magnetic nanoparticles; Functionalization; Scavenger; Metals; Palladium; Hydrogenation
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A magnetically recoverable scavenger for palladium based on thiol-modified magnetite nanoparticles
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 330, 10 October 2007, Pages 139–144
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us