Photocatalytic Degradation of Methylene Blue Using Visible Light Active N-Doped ZnO

Hanggara Sudrajat; Sandhya Babel

doi:10.4028/www.scientific.net/AMR.1101.299

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1101Photocatalytic Degradation of Methylene Blue Using...

Photocatalytic Degradation of Methylene Blue Using Visible Light Active N-Doped ZnO

Abstract:

A visible light active nitrogen-doped ZnO (N-ZnO) was synthesized using a solvent-free mechanochemical method and applied to degrade methylene blue (MB) dye in aqueous suspension. Results showed that nitrogen doping improved the photocatalytic activity of pristine ZnO by extending its spectral response to visible region. Using 2 g/L of N-ZnO, 98% MB with the initial concentration of 10 mg/L could be degraded within 2 h at pH 7 under 11.3 klux of visible light irradiation. After 6^th run, it still exhibited appreciable photocatalytic activity with 94% MB degradation, indicating its high reusability though a simple pretreatment was performed.

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Material Science and Engineering Technology III

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Periodical:

Advanced Materials Research (Volume 1101)

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299-302

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1101.299

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Online since:

April 2015

Authors:

Hanggara Sudrajat, Sandhya Babel

Keywords:

Mechanochemical Method, Methylene Blue, N-Doped ZnO, Photocatalytic Degradation, Visible Light Active Photocatalyst

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