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Electrospun continuous nanofibers based on a TiO2-ZnO-graphene composite

Publication Type : Journal Article

Thematic Areas : Nanosciences and Molecular Medicine

Publisher : RSC Advances

Source : RSC Advances, Volume 3, Number 47, p.25312-25316 (2013)

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Keywords : Anti-bacterial studies, Bacterial strains, Biomedical applications, Composite nanofibers, Conductance values, Continuous fibers, Dye sensitized solar cell, Graphene, Medical applications, Morphology, Nanofibers, Solar cells, Spectroscopic and microscopic techniques, Titanium dioxide, Zinc oxide

Campus : Kochi

School : Center for Nanosciences

Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences

Department : Nanosciences and Molecular Medicine

Year : 2013

Abstract : The present study provides the first reports on the electrospinning of TiO2-ZnO-graphene composite nanofibers for photovoltaic and biomedical applications. These nanofibers were characterized by spectroscopic and microscopic techniques to evaluate the morphologies and phases. The fiber diameter was found to be ∼210 nm. The graphene content was maintained in the range of 0.2-0.7 weight percent. It was observed that when the graphene content was increased beyond 0.7 weight percent, the continuous fiber morphology was lost. Raman spectroscopy was used to confirm the presence of graphene. Conductivity studies showed a ∼9 times increase in conductance values for the TiO2-ZnO-graphene system as compared to TiO2-ZnO nanofibers. Employing these TiO2-ZnO-graphene fiber composites as photoanodes in dye sensitized solar cells, an efficiency of 3.7% was attained. Antibacterial studies performed on two bacterial strains, namely E.coli and S. aureus, have shown that these composite fibers can be used effectively for antibacterial wound dressing applications. This journal is © The Royal Society of Chemistry.

Cite this Research Publication : A. A. Madhavan, Mohandas, A., Licciulli, A., Sanosh, K. P., Praveen, P., Dr. Jayakumar Rangasamy, Nair, S. V., A. S. Nair, and Balakrishnan, A., “Electrospun continuous nanofibers based on a TiO2-ZnO-graphene composite”, RSC Advances, vol. 3, pp. 25312-25316, 2013.

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