Investigating photocatalytic activity of titania coated fresh water diatom frustules by the degradation of polluting dye

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ID: 13805
2017
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Abstract
Silica frustules of diatoms contain nanoscale pores arranged in periodic order. In this report we have synthesized TiO2 nanoparticles coated diatom frustules followed by annealing at 500ºC. The as synthesized DT500 catalyst is characterized by X-ray diffraction (XRD), Scanning electron microscope (SEM) and EDX. UV-visible spectroscopy is performed to analyze the band gap (BG) energy of the material which is found to lie in the visible light range. The photocatalytic properties of the catalysts are investigated via typical polluting dye as a model organic compound under visible light irradiation. The as synthesized DT500 catalyst contains anatase phase of titania exhibited more light absorption in the visible region and found to have higher photocatalytic efficiency due to morphology of frustules and TiO2 coating.
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Authors Lakhi Chetia;Debabrat Kalita;Gazi A. Ahmed;
Journal adbu journal of engineering technology
Year 2017
DOI
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URL
http://journals.dbuniversity.ac.in/ojs/index.php/AJET/article/download/409/pdf_81
Keywords Keywords not found

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