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Enhancement of TiO2 Photocatalytic Activity by N- Doping Using the Gas Phase Impregnation Method

Published online by Cambridge University Press:  31 January 2011

Chennan Li ,
Sesha Srinivasan ,
Nikolai Kislov ,
Mark Schmidt ,
Lee Stefanakos  and
Yogi Goswami
Chennan Li
Affiliation:
chennanli@gmail.com, University of South Florida, Clean Energy Research Center, Tampa, Florida, United States
Sesha Srinivasan
Affiliation:
sesha.srinivasan@gmail.com, Tuskegee University, Physics Department, Tuskegee, Alabama, United States
Nikolai Kislov
Affiliation:
nanocvd@verizon.net, NanoCVD Inc, Tampa, Florida, United States
Mark Schmidt
Affiliation:
mhschmid@eng.usf.edu, University of South Florida, Clean Energy Research Center, Tampa, Florida, United States
Lee Stefanakos
Affiliation:
stefanak@eng.usf.edu, University of South Florida, Clean Energy Research Center, Tampa, Florida, United States
Yogi Goswami
Affiliation:
goswami@eng.usf.edu, University of South Florida, Clean Energy Research Center, Tampa, Florida, United States
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Abstract

This paper investigated an inexpensive way to improve the overall photocatalytic activity of TiO2 by N- doping using anhydrous ammonia as the nitrogen source. Doping amount could be further optimized by controlling the reaction time. Experiments showed that photocatalytic effect has one threshold concentration. Lower or higher reaction will decrease the photocatalytic efficiency. Experiments showed that the suitable reaction temperature should be lower than 650oC.

Keywords

catalyticnanostructureoptical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1217: Symposium Y – Catalytic Materials for Energy, Green Processes and Nanotechnology , 2009 , 1217-Y03-35
Copyright
Copyright © Materials Research Society 2010

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