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Photocatalytic Deposition of Nickel Nanoparticles on Titanium Dioxide

Published online by Cambridge University Press:  01 February 2011

Julia L. Rodríguez ,
Francisco Pola ,
Miguel A. Valenzuela  and
Tatiana Poznyak
Julia L. Rodríguez
Affiliation:
Lab. Catálisis y Materiales, ESIQIE – Instituto Politécnico Nacional. Zacatenco, 07738 México, D.F. México. Emails: mavalenz@ipn.mx, tpoznyak@ipn.mx Lab. Ing. Química Ambiental, ESIQIE – Instituto Politécnico Nacional, Zacatenco, 07738 México, D.F. México Centro de Investigación en Materiales Avanzados, Miguel de Cervantes 120, 31109, Chihuahua, Chih., México
Francisco Pola
Affiliation:
Centro de Investigación en Materiales Avanzados, Miguel de Cervantes 120, 31109, Chihuahua, Chih., México
Miguel A. Valenzuela
Affiliation:
Lab. Catálisis y Materiales, ESIQIE – Instituto Politécnico Nacional. Zacatenco, 07738 México, D.F. México. Emails: mavalenz@ipn.mx, tpoznyak@ipn.mx
Tatiana Poznyak
Affiliation:
Lab. Catálisis y Materiales, ESIQIE – Instituto Politécnico Nacional. Zacatenco, 07738 México, D.F. México. Emails: mavalenz@ipn.mx, tpoznyak@ipn.mx
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Abstract

Metallic nanoparticles may be tailored to obtain specific size and morphology. In this work we present the synthesis of Ni/TiO2 catalysts by a photodeposition method. Our investigation included the photochemical and photocatalytic reduction of the nickel organometallic precursor (Ni (II) acetylacetonate) over titania (Degussa P-25) support. The photo-reduction kinetics was followed by UV-Vis and the catalysts were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). According to the results, the photochemical reduction of the Ni precursor was only 30% at λ= 254 nm, whereas, the photocatalytic route was approximately 90 % (λ= 365 nm) yielding Ni nanoparticles with diameter ranging from 10 to 40 nm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1279: New Catalytic Materials , 2010 , 53
Copyright
Copyright © Materials Research Society 2010

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