Photocatalytic deposition of nickel nanoparticles on titanium dioxide

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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.

Original languageEnglish
Title of host publicationNew Catalytic Materials
PublisherMaterials Research Society
Pages19-25
Number of pages7
ISBN (Print)9781605112565
DOIs
StatePublished - 2010
Externally publishedYes

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1279
ISSN (Print)0272-9172

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