Journal of Nanomedicine & Nanotechnology

John Ferguson, LanXu, Fouzia Begum, MandaVenkataRamana, and Hemali Rathnayake

3^rd International Conference on Nanotek & Expo

December 02-04, 2013 Hampton Inn Tropicana, Las Vegas, NV, USA

Jos? de Jes?s Ibarra-S?nchez, Guadalupe de la Rosa ?lvarez, Rosalba Fuentes-Ram?rez, Susana Figueroa-Gerstenmaier, Adolfo Melit?n Esp?ndola Gonz?lez, Jos? Antonio Reyes-Aguilera, Ram?n Casta?eda Priego and Jos? Jorge Delgado Garc

Posters: J Nanomed Nanotechnol

Abstract:

In this work, we present the green synthesis of TiO2 ; focusing on several effects that impact the particle size distribution: an initial concentration of precursor (titanium isopropoxide), the ratio of hydrolysis, and different pH values. Nanoparticles were synthesized from a hydrolysis reaction using 2-propanol as a solvent; starting from titanium isopropoxide and sugars and carboxylic acids as additives extracted from alfalfa. The extraction of these additives was obtained by dissolving powdered alfalfa in 2-propanol. This substrate has been harvested in the southern region of the city of Leon, Guanajuato in Mexico. Figure 1 shows the onset wavelength of the optical absorption for the uncapped TiO 2 that appears at 290 nm in UV?Vis spectroscopy which is blue shifted compared to the bulk anatase TiO 2 ; indicating the formation of nanoparticles solution. Moreover, the spectrum gives an indication about nanoparticle polydispersity: systems with low polydispersity present a well-defined peak, as shown in this figure

Biography :

Jose de Jesus Ibarra-Sanchez has completed his Master?s in Chemical Engineering from the University of Guanajuato, Mexico. Since 2011, he is a Ph.D. Student at the same university. He has published two papers