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Preparation of tetrapod‐like ZnO/TiO 2 core‐shell nanostructures as photocatalytic powder
Author(s) -
Sartori A.,
Visentin F.,
El Habra N.,
De Zorzi C.,
Natali M.,
Garoli D.,
Gerbasi R.,
Casarin M.,
Rossetto G.
Publication year - 2011
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201000594
Subject(s) - photocatalysis , anatase , zinc , scanning electron microscope , materials science , chemical engineering , nanostructure , oxide , nanotechnology , catalysis , chemistry , composite material , metallurgy , organic chemistry , engineering
The coupling of zinc oxide tetrapods (t‐ZnO) with anatase TiO 2 in the form of CVD coatings on ZnO nanotetrapods was investigated. t‐ZnO/TiO 2 core‐shell structures, consisting of uniformly and completely TiO 2 covered ZnO nanotetrapods, were characterized by scanning electron microscopy, X‐ray diffraction and UV‐Vis spectra. Photocatalytic activity, determined by degradation of a sodium methyl red solution, was found to be comparable to pure t‐ZnO, while improved separation easiness was verified that makes the presented powders promising for wastewater treatment. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)