Hydrothermal preparation of ZnO:CNT and TiO2:CNT composites and their photocatalytic applications

Byrappa, K. and Dayananda, A. S. and Sajan, C. P. and Basavalingu, B. and Shayan, M. B. and Soga, K. and Yoshimura, M. (2008) Hydrothermal preparation of ZnO:CNT and TiO2:CNT composites and their photocatalytic applications. Journal of Materials Science, 43 (7). pp. 2348-2355. ISSN 1573-4803

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Abstract

ZnO:CNT and TiO2:CNT composites were fabricated under mild hydrothermal conditions (T = 150–240 °C) with an autogenous pressure. The as prepared composites were characterized using X-ray diffraction, Scanning electron microscopy and FTIR spectroscopy. Photocatalytic applications of the composites were investigated using indigo caramine dye. The effect of the catalyst content, pH of the medium, source and intensity of illumination on the photodegradation of the indigo caramine dye was studied and the efficiency of the composites were investigated based on different parameters like percent transmittance (%T), percent decomposition, and chemical oxygen demand of the dye solution to obtain optimum treatment conditions. The results obtained exhibit higher photocatalytic activity when compared to the reagent grade ZnO, TiO2 and hydrothermally prepared ZnO:AC and TiO2:AC composites.

Item Type:	Article
Subjects:	F Earth Science > Geology
Divisions:	Department of > Earth Science
Depositing User:	Manjula P Library Assistant
Date Deposited:	23 Aug 2019 10:33
Last Modified:	23 Aug 2019 10:33
URI:	http://eprints.uni-mysore.ac.in/id/eprint/6981

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