fulltext.study @t Gmail

Synthesis, characterisation and photocatalytic activity of N-doped TiO2–Nb2O5 mixed oxides

Paper ID Volume ID Publish Year Pages File Format Full-Text
53754 46982 2015 10 PDF Available
Title
Synthesis, characterisation and photocatalytic activity of N-doped TiO2–Nb2O5 mixed oxides
Abstract

•Nitrogen-doped TiO2/Nb2O5 photocatalysts were synthesised and characterised.•Nitrogen doping reduced the band gap energy by 12%.•Benzene, toluene and xylene solutions were 65% degraded with N-doped TiO2/Nb2O5 in 150 min.

Nitrogen-doped TiO2 and TiO2–Nb2O5 catalysts were prepared by sol–gel technique using titanium isopropoxide (TIP) and potassium niobate. The obtained samples were subsequently calcined at 380 and 500 °C. Undoped TiO2 and TiO2–Nb2O5 samples were also prepared by way of comparison. The photocatalytic activities of the synthesised catalysts were evaluated on the photodegradation of benzene, toluene and xylenes (BTX) solution under UVA and visible light. The level of nitrogen incorporated on N-doped TiO2–Nb2O5 catalyst was found to be 0.49 at%. Concentrations of BTX were analysed by gas chromatography applying the headspace technique. The N-doped TiO2–Nb2O5 catalyst calcined at 500 °C led to reductions of benzene, toluene and xylenes greater than 65 wt% after 150 min of irradiation. The photocatalytic reactions followed the first order kinetics.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (116 K)Download as PowerPoint slide

Keywords
Nitrogen doped catalysts; TiO2; Nb2O5; Photocatalysis; BTX; Visible light
First Page Preview
Synthesis, characterisation and photocatalytic activity of N-doped TiO2–Nb2O5 mixed oxides
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 254, 1 October 2015, Pages 119–128
Authors
, , , ,
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