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Mild ultrasound-assisted synthesis of TiO2 supported on magnetic nanocomposites for selective photo-oxidation of benzyl alcohol

Paper ID Volume ID Publish Year Pages File Format Full-Text
45138 46401 2016 6 PDF Available
Title
Mild ultrasound-assisted synthesis of TiO2 supported on magnetic nanocomposites for selective photo-oxidation of benzyl alcohol
Abstract

•Simple synthesis of hybrid photocatalysts containing magnetic nanocomposites and titania.•Selective and stable composite photocatalyst for liquid phase photocatalytic oxidation of benzyl alcohol.•Sonication-based preparation of modern selective composite photocatalyst with magnetic properties for simple recovery.•Advantages of combining magnetic filtration and photocatalysis for green chemistry synthesis.

A simple and effective ultrasound-assisted wet impregnation method was developed for the preparation of magnetically separable TiO2/maghemite-silica photo-active nanocomposites. The resulting nanomaterials were characterized by several techniques and subsequently tested for their photocatalytic activities in the liquid phase selective oxidation of benzyl alcohol. An unprecedented selectivity in organic media (90% in acetonitrile) towards benzaldehyde was achieved at a benzyl alcohol conversion of ca. 50%, being remarkably superior in terms of activity to any other supported transition metal catalysts reported to date as well as commercial titania Evonik P-25 photocatalyst.

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Keywords
Selective photo-oxidation; Ultrasound-assisted impregnation; TiO2; Aromatic alcohols; Magnetic photocatalysts
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Mild ultrasound-assisted synthesis of TiO2 supported on magnetic nanocomposites for selective photo-oxidation of benzyl alcohol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 183, April 2016, Pages 107–112
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