Nb and N co-doped TiO2 for a high-performance deNO x photocatalyst under visible LED light irradiation

Nb and N co-doped TiO2 for a high-performance deNO x photocatalyst under visible LED light... By a facile and rapid microwave-assisted hydrothermal reaction at 190 °C for 30 min, niobium and nitrogen co-doping TiO2 nanoparticles were prepared. The obtained samples were characterized by XRD, UV–Vis spectroscopy, EDX analysis, and BET measurements. To evaluate the photocatalytic activity, destruction of NO x gas under the irradiation of several LED lamps with various wavelengths were carried out. Although co-doping of Nb with N into TiO2 resulted in the decrement of the specific surface area, it was useful to improve the photocatalytic activity for the oxidative destruction of NO, probably due to the effective reduction of the anion vacancy in the lattice which acts as the recombination center of the photo-induced electrons and holes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Nb and N co-doped TiO2 for a high-performance deNO x photocatalyst under visible LED light irradiation

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Publisher
Springer Netherlands
Copyright
Copyright © 2012 by Springer Science+Business Media B.V.
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-012-0615-9
Publisher site
See Article on Publisher Site

Abstract

By a facile and rapid microwave-assisted hydrothermal reaction at 190 °C for 30 min, niobium and nitrogen co-doping TiO2 nanoparticles were prepared. The obtained samples were characterized by XRD, UV–Vis spectroscopy, EDX analysis, and BET measurements. To evaluate the photocatalytic activity, destruction of NO x gas under the irradiation of several LED lamps with various wavelengths were carried out. Although co-doping of Nb with N into TiO2 resulted in the decrement of the specific surface area, it was useful to improve the photocatalytic activity for the oxidative destruction of NO, probably due to the effective reduction of the anion vacancy in the lattice which acts as the recombination center of the photo-induced electrons and holes.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 15, 2012

References

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