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Nanomaterials 2016, 6(5), 93; doi:10.3390/nano6050093

Mechanochemical Synthesis of TiO2 Nanocomposites as Photocatalysts for Benzyl Alcohol Photo-Oxidation

1
Department of Organic Chemistry, University of Cordoba, Edificio Marie Curie(C-3), Ctra Nnal IV-A, Km 396, Cordoba E14014, Spain
2
Institute of Physical Chemistry Polish Academy of Sciences (PAS), Kasprzaka 44/52, Warsaw 01-224, Poland
*
Author to whom correspondence should be addressed.
Academic Editors: Hermenegildo García and Sergio Navalón
Received: 3 March 2016 / Revised: 4 May 2016 / Accepted: 7 May 2016 / Published: 18 May 2016
(This article belongs to the Special Issue Nanoparticles for Catalysis)
View Full-Text   |   Download PDF [3075 KB, uploaded 18 May 2016]   |  

Abstract

TiO2 (anatase phase) has excellent photocatalytic performance and different methods have been reported to overcome its main limitation of high band gap energy. In this work, TiO2-magnetically-separable nanocomposites (MAGSNC) photocatalysts with different TiO2 loading were synthesized using a simple one-pot mechanochemical method. Photocatalysts were characterized by a number of techniques and their photocatalytic activity was tested in the selective oxidation of benzyl alcohol to benzaldehyde. Extension of light absorption into the visible region was achieved upon titania incorporation. Results indicated that the photocatalytic activity increased with TiO2 loading on the catalysts, with moderate conversion (20%) at high benzaldehyde selectivity (84%) achieved for 5% TiO2-MAGSNC. These findings pointed out a potential strategy for the valorization of lignocellulosic-based biomass under visible light irradiation using designer photocatalytic nanomaterials. View Full-Text
Keywords: TiO2; magnetically separable photocatalysts; selective photo-oxidation; mechanochemical synthesis; ball mill TiO2; magnetically separable photocatalysts; selective photo-oxidation; mechanochemical synthesis; ball mill
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MDPI and ACS Style

Ouyang, W.; Kuna, E.; Yepez, A.; Balu, A.M.; Romero, A.A.; Colmenares, J.C.; Luque, R. Mechanochemical Synthesis of TiO2 Nanocomposites as Photocatalysts for Benzyl Alcohol Photo-Oxidation. Nanomaterials 2016, 6, 93.

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