Visible light photocatalytic water splitting for hydrogen production from N-TiO 2 rice grain shaped electrospun nanostructures

  • Babu V
  • Kumar M
  • Nair A
 et al. 
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We report on the visible light-driven hydrogen production from splitting of water molecules by nitrogen-doped TiO 2 (N-TiO 2) with a rice grain-like nanostructure morphology. The N-TiO 2 nanostructures are prepared using sol-gel and electrospinning methods followed by post-annealing of the composite nanofibers. The nanostructures are characterized by microscopy and spectroscopy. First order rate constants for the visible light-assisted photocatalysis in the degradation of methylene blue (MB) dye are found to be 0.2 ?? 10 -3 and 1.8 ?? 10 -3 min -1 for TiO 2 and N-TiO 2 (5 wt% of nitrogen), respectively. The N-TiO 2 utilized in water splitting experiments and evaluated hydrogen (H 2) of 28 and 2 ??mol/h for N-TiO 2 and TiO 2, respectively. The improvement may be attributed due to the N-doping and higher surface area as ???70 m 2/g. ?? 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Electrospinning
  • H 2 production
  • Hybrid nanostructures
  • Photocatalysis

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  • Veluru Jagadeesh Babu

  • Manippady K. Kumar

  • Appukuttan Sreekumaran Nair

  • Tan Lee Kheng

  • Suleyman I. Allakhverdiev

  • Seeram Ramakrishna

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