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Facile synthesis of N-doped TiO2 nanoparticles by a modified polymeric precursor method and its photocatalytic properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
46904 46453 2011 8 PDF Available
Title
Facile synthesis of N-doped TiO2 nanoparticles by a modified polymeric precursor method and its photocatalytic properties
Abstract

In recent years, significant effort has been focused on the production of visible-light activated photocatalysts such as N-doped TiO2 for advanced oxidation processes. Thus, this paper describes a facile and simple route to produce N-doped TiO2 nanoparticles by a modified polymeric precursor method using urea. In addition, the paper describes the characterization and photocatalytic activity evaluation of N-doped TiO2 nanoparticles. The predominance of the anatase phase and the modification of band-gap energies in N-TiO2 indicate that the doping process is effective; Raman spectroscopy shows bands related to TiOxN1−x. The presence of N in higher amounts in the doped nanoparticles confirms the doping process which was also confirmed by X-ray photonelectron spectroscopy (XPS). Unmodified TiO2 nanoparticles indicate higher UV-C photocatalytic activity, and the N-doped TiO2 nanoparticles show better visible photocatalytic activity, suggesting a useful way to operate those catalysts under visible light and/or sunlight.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A facile and simple route to produce N-doped TiO2 nanoparticles using urea was described. ► Characterization results indicated that the doping process was effective. ► Unmodified TiO2 nanoparticles indicated higher UV-C photocatalytic activity than doped ones. ► The N-doped TiO2 nanoparticles showed better visible photocatalytic activity than in UV light.

Keywords
Nanoparticle; TiO2; Photocatalysis
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Facile synthesis of N-doped TiO2 nanoparticles by a modified polymeric precursor method and its photocatalytic properties
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 106, Issues 3–4, 11 August 2011, Pages 287–294
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us