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

Publication Type : Journal Article

Thematic Areas : Nanosciences and Molecular Medicine

Publisher : International Journal of Hydrogen Energy

Source : International Journal of Hydrogen Energy, Volume 37, Number 10, p.8897-8904 (2012)

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Keywords : Aromatic compounds, Composite nanofibers, Electrospinning, Electrospinning method, Electrospun nanostructures, First-order rate constants, Grain (agricultural product), Hybrid nanostructures, Hydrogen, Hydrogen production, Methylene Blue, N-Doping, Nanostructure morphologies, Nanostructures, Nitrogen-doped, Organic polymers, Photocatalysis, Photocatalytic water splitting, Post annealing, Rate constants, Rice grains, Sol-gels, Surface area, TiO, Titanium dioxide, Visible light, Water molecule, Water splitting

Campus : Kochi

School : Center for Nanosciences

Center : Nanosciences

Department : Nanosciences and Molecular Medicine

Year : 2012

Abstract : 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 μmol/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.

Cite this Research Publication : V. J. Babu, Kumar, M. K., A. S. Nair, Kheng, T. L., Allakhverdiev, S. I., and Ramakrishna, S., “Visible light photocatalytic water splitting for hydrogen production from N-TiO 2 rice grain shaped electrospun nanostructures”, International Journal of Hydrogen Energy, vol. 37, pp. 8897-8904, 2012.

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