Synthesis of TiO2, anatase phase by the sol-gel method: study of the effect of the presence of AcacH in the system
Keywords:
titanium dioxide, anatase, sol-gel, AcacH, characterizationAbstract
Titanium dioxide TiO2 is a sensitive n-semiconductor to the light that absorbs electromagnetic radiation in the UV region, is anfoteric and chemically stable. TiO2, is the most employed photocatalyst and at the moment is used in the process of water purification to degrade organic molecules. In this work, the Sol-Gel method was used to synthesize titanium dioxide, process that yielded amorphous and polycrystalline materials in a simple way. The effect of the presence of acetilacetone as complexing agent and of the thermal treatments on the characteristics of the final product was studied, paying particular attention to the crystalline phase anatase. The ceramic powders obtained were characterized by: infrared spectroscopy (FTIR), ray-X diffraction (RDX) and transmition electrony microscopy (TEM). The results indicate that using AcacH nanoparticles (< 20 nm) of TiO2 anatase phase, well crystallized at 450 º C can be obtained.
Downloads
References
U. Müller. Inorganic Structural Chemistry. 2a ed. Ed. John Wiley & Sons. Ltda. England. 2007. pp. 57.
E. Bevilacqua. “Health and Safety Manager Tioxide Europe SAS”. Huntsman European Environment. Vol 1. 2004. pp. 1-26.
N. Arconada, Y. Castro, A. Durán. “Síntesis ypropiedades fotocatalíticas de recubrimientos porosos de TiO2-anatasa producidos por sol-gel”. X Congreso Nacional de Materiales. Donostia. San Sebastián (España). 2008. pp. 1-7.
N. Serpone. “Solar Cells”. Solar Energy Mater. Vol. 38. 1995. pp. 369-379.
K. Akurati. “Synthesis, characterization and sintering of nanocrystalline titania powders produced by chemical vapour synthesis”. Journal of Physics D: Applied Physics. Vol. 39. 2006. pp. 2248-2254.
A. J. Moulson J. M. Herbert. Electroceramics. Materials, properties, applications. Ed. Chapman & Hall. 1990. pp. 48-79.
H. R. Clauser. The Encyclopedia of Engineering Materials and Processes. Editorial Labor S. A. Barcelona. 1990. pp. 806-807.
H. Monreal, V. A. Martínez. “Obtención de nanocilindros de TiO2 por ADN mediante Sol-Gel”.
Revista del centro de investigación, Universidad La Salle. México. Vol. 6. 2006. pp. 21-26.
A. Fernández, A. Guzmán. Obtención de recubrimientos con propiedades ópticas utilizando el
método Sol-Gel, trabajo de grado programa Ingeniería Física. Universidad del Cauca. 2007. pp. 19.
C. J. Brinker, G. W. Scherer. Sol-gel Science: the physics and chemistry of sol-gel processing. Ed.
Academic Press Inc. 1991. pp. 30-34.
F. Babonneau, L. Bois, J. Livage, S, Dire. “Estructural investigation of sol-gel derived hybrid siloxane-oxide materials using silicon-29 MAS-NMR spectroscopy”. Mater. Res. Soc. Symp. Proc. Vol. 286. 1993. pp. 289-294.
L. Tellez. “Seguimiento por espectroscopía infrarroja (FT-IR) de la copolimerización de TEOS (tetraetilortosilicato) y PDMS (polidimetilsiloxano) en presencia de TBT (tetrabutiltitanio)”. Bol. Soc. Esp. Cerám. y Vidrio. Vol. 43. 2004. pp. 883-890.
A. Guzmán, A. Fernández, J. Rodríguez. “Estudio de las reacciones de hidrólisis y condensación del titanio en presencia de acetilacetona”. Rev. Acad. Colomb. Cienc. Vol. 31. 2007. pp. 529-536.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2018 Revista Facultad de Ingeniería
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Revista Facultad de Ingeniería, Universidad de Antioquia is licensed under the Creative Commons Attribution BY-NC-SA 4.0 license. https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en
You are free to:
Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material
Under the following terms:
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
NonCommercial — You may not use the material for commercial purposes.
ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
The material published in the journal can be distributed, copied and exhibited by third parties if the respective credits are given to the journal. No commercial benefit can be obtained and derivative works must be under the same license terms as the original work.
Twitter