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Detailed Program
Paper Number : NA-P03
Time Frame : 12:00~13:30
Presentation Date : Friday, 28, November
Session Name : Nano-particles & Nano-structured Materials
Session Chair 1# : -
Session Chair 2# : -
Effect of time on the growth of flowerlike rutile nanostructures and their application for degradation of organic dyes
Mr. Rehan Danish
Changwon National University
Since the discovery of photocatalytic water splitting by Honda and Fujishima there has been many efforts to utilize this property of TiO2 nanostructures for other applications. One of the major applications of the TiO2 nanostructures is their ability to degrade the organic pollutants in the presence of UV light. Several research groups have been working to find a more efficient nanostructure which takes less time and is much economical to synthesize. Aspect ratio of a nanostructure plays a vital role in enhancing the photocatalytic degrading efficiency of a nanostructure. As the aspect ratio of the nanostructure increases the possibility of the charge carrier combination decreases and hence the efficiency increases. In this study we demonstrate an easy and scalable technique to synthesize high aspect ratio nanostructures and we analyze the effect of varying time on the properties of the nanostructures. The obtained nanostructures were characterized using X- ray diffraction spectrometry for the structural properties and the morphological evolution was analyzed using FESEM. The optical properties were analyzed using UV-Visible spectrometry and the photocatalytic efficiency was analyzed by degradation of Methylene Blue under the presence of UV light. The 96% degradation of MB took place in ~ 3 hrs that is much better than earlier reports making the obtained nanostructures much efficient for the degradation of organic pollutants.
Acknowledgements : Acknowledgement: (No.2011-0030058)(2012H1B8A2026212)