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Mo- and N-doped BiNbO4 for photocatalysis applications

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5 Author(s)
Nisar, J. ; Condense Matter Theory Group, Department of Physics and Astronomy, Box 516, Uppsala University, S-751 20 Uppsala, Sweden ; Wang, B.C. ; Pathak, B. ; Kang, T.W.
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The electronic structure of pure BiNbO4 has been calculated and their electronic band positions have been aligned with respect to the water oxidation/reduction potential. The effect of cationic (Mo), anionic (N), and co-doping (Mo-N) on BiNbO4 has been studied and discussed with respect to the standard redox potential levels. Our results show that co-doping of Mo and N in BiNbO4 reduces the band gap up to 31.8%, thus making it a potential candidate for the photocatalysis of water for hydrogen production. The relative stability between the mono- and co-doped BiNbO4 materials show that co-doped material is more stable and feasible in comparison to the mono-doped materials.

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Applied Physics Letters  (Volume:99 ,  Issue: 5 )