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Enhanced N-doping efficiency and photocatalytic H2 evolution rate of InNbO4 by mechanochemical activation

Published online by Cambridge University Press:  31 January 2011

Jun Lv ,
Tetsuya Kako ,
Zhigang Zou  and
Jinhua Ye
Jun Lv
Affiliation:
Eco-materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid State Microstructures, Nanjing 210093, China; Photocatalytic Materials Center (PMC), National Institute for Materials Science (NIMS), 1-2-1 Sengen,Tsukuba, Ibaraki 305-0047, Japan; and Department of Materials Science andTechnology, Nanjing University, Nanjing 210093, China
Tetsuya Kako
Affiliation:
Photocatalytic Materials Center (PMC), National Institute for Materials Science(NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Zhigang Zou
Affiliation:
Eco-materials and Renewable Energy Research Center (ERERC), National Laboratoryof Solid State Microstructures, Nanjing 210093, China; and Department of Physics,Nanjing University, Nanjing 210093, China
Jinhua Ye*
Affiliation:
Eco-materials and Renewable Energy Research Center (ERERC), National Laboratoryof Solid State Microstructures, Nanjing 210093, China; and Photocatalytic MaterialsCenter (PMC), National Institute for Materials Science (NIMS), 1-2-1 Sengen,Tsukuba, Ibaraki 305-0047, Japan
*
a)Address all correspondence to this author. e-mail: Jinhua.YE@nims.go.jp
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Abstract

In this work, mechanochemical activation was found to be an effective method to improve nitrogen (N)-doping efficiency and the photocatalytic H2 evolution rate of InNbO4. The effects of mechanochemical treating time on phase formation, surface area, crystallite size, optical property, N-doping efficiency, and photocatalytic activity of InNbO4 were investigated experimentally. The results indicated the decreasing of crystallite size was an important factor for the improvement of N-doping efficiency and photocatalytic activity.

Keywords

AbsorptionElectronic structureGrain size
Type
Articles
Information
Journal of Materials Research , Volume 25 , Issue 1: Photocatalysis for Energy and Environmental Sustainability , January 2010 , pp. 159 - 166
Copyright
Copyright © Materials Research Society 2010

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