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TiO 2 doped with nitrogen: Synthesis and characterization

TitoloTiO 2 doped with nitrogen: Synthesis and characterization
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2008
AutoriAbazović, N.D., Montone Amelia, Mirenghi L., Janković I.A., and Čomor M.I.
RivistaJournal of Nanoscience and Nanotechnology
Volume8
Paginazione613-618
ISSN15334880
Parole chiaveDoping (additives), Hydrolysis, Nitrogen, Optical spectrums, Synthesis (chemical), Titanium compounds, Titanium dioxide, Titanium hydroxide, X ray photoelectron spectroscopy
Abstract

In this study, nitrogen-doped titanium dioxide (TiO 2) powders were synthesized in two ways: by heating of titanium hydroxide with urea and by direct hydrolysis of titanium tetraisopropoxide (TTIP) with ammonium hydroxide. The samples were characterized by structural (XRD), analytical (XPS), optical (UV/Vis absorption/reflection and Raman spectroscopy) and morphological (SEM, TEM) techniques. The characterization suggested that the doped materials have anatase crystalline form without any detectable peaks that correspond to dopants. The absorption threshold of titanium dioxide was moved in the visible range of optical spectrum from 3.2 eV to 2.20 eV. Particle sizes of synthesized powders were obtained from XRD measurements and from TEM data ranging from 6-20 nm. XPS and Raman spectroscopy were used for detection of nitrogen in doped samples. Copyright © 2008 American Scientific Publishers All rights reserved.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-42549165682&doi=10.1166%2fjnn.2008.A226&partnerID=40&md5=767a2f6719de2fa00f06722f111f535c
DOI10.1166/jnn.2008.A226
Citation KeyAbazović2008613