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Porous N-doped Zinc Oxide Nanostructure by novel paper mediated template method and its photocatalytic study for dye degradation under natural sunlight

Abstract

N-doped zinc Oxide (N-ZnO) nanostructure was prepared using novel paper mediated combustion method. The precursor were impregnated in the filter papers and thermally processed to obtain porous N-ZnO nanostructure. The XRD of as synthesized N-ZnO confirms the formation of wurtzite phase and broad diffraction peaks confirms the nanocrystalline nature of product. The TEM and SEM images show the spherical shaped 20-30 nm N-ZnO nanoparticles. The UV-Visible absorbance spectra of product show the red shift in the spectra with increasing doping concentration of nitrogen in the ZnO. This red shift was due to incorporation of nitrogen in the ZnO lattice. Photoluminescence spectra indicate the strong emission peak at 391nm corresponds to the band gap emission. Considering the band gap of as synthesized N-ZnO is well within the visible region, the photocatalytic activity for degradation of methylene blue (MB) and rhodamine (RhB) dye was performed under direct sun light using as synthesized N-ZnO. The N-ZnO prepared with higher amount of urea (1:8) shows highest photocatalytic activity as compared to the other synthesized N-ZnO samples towards degradation of MB and RhB. i.e. complete degradation of MB in 30 min and RhB in 45 min. The facile synthesis approach can be utilised to prepare other N doped oxides.

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Publication details

The article was accepted on 03 Nov 2017 and first published on 06 Nov 2017


Article type: Research Article
DOI: 10.1039/C7QM00490G
Citation: Mater. Chem. Front., 2017, Accepted Manuscript
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    Porous N-doped Zinc Oxide Nanostructure by novel paper mediated template method and its photocatalytic study for dye degradation under natural sunlight

    G. B. Kale, S. S. Arbuj, U. V. Kawade, S. B. Rane, J. D. Ambekar and B. B. Kale, Mater. Chem. Front., 2017, Accepted Manuscript , DOI: 10.1039/C7QM00490G

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