| AVS 57th International Symposium & Exhibition | |
| Nanometer-scale Science and Technology | Tuesday Sessions |
| Session NS-TuP |
| Session: | Nanometer-Scale Science and Technology Poster Session |
| Presenter: | M.A. Santana-Aranda, Universidad de Guadalajara, Mexico |
| Authors: | D. González-Sánchez, Universidad de Guadalajara, Mexico J.L. González-Solís, Universidad de Guadalajara, Mexico G. Toríz, Universidad de Guadalajara, Mexico C.R. Michel-Uribe, Universidad de Guadalajara, Mexico G. Gómez-Rosas, Universidad de Guadalajara, Mexico A. Pérez-Centeno, Universidad de Guadalajara, Mexico M.A. Santana-Aranda, Universidad de Guadalajara, Mexico |
| Correspondent: | Click to Email |
Iron doped titanium dioxide nanoparticles were synthesized using the sol-gel method. Solution was prepared in propanol, diluting Tween 80 surfactant (as pore directing agent), acetic acid and finally titanium tetrapropoxide (TTP); constantly stirred with a motor driven Teflon® palette. Doping iron was introduced by dissolving iron (III) chloride in propanol and adding to the solution; in the required amount to obtain 0.25; 0.5; 0.75; 1.0; 1.25 and 1.57 mol% iron with respect to titanium. Employed proportions of Tween80/PrOH/acetic acid/TTP were defined mostly following the values reported by Dionysiou´s group on pure TiO2 [1]. We obtained nanoparticles with sizes around 9 nm; being larger for lower iron content and smaller for higher iron content, as observed by electron microscopy and calculated from the full width at half maximum (FWHM) of X ray diffraction peaks, using Scherrer’s formula. Raman spectroscopy and X ray diffraction measurements showed the presence of additional features, possibly related to a foreign phase into an almost pure anatase powder, increasing along with iron content.
[1] H. Choi, E. Stathatos, D.D. Dionysiou, Thin Solid Films 510 (2006) 107.
Aknowledgements: Authors want to thank the technical assistance of Gabriel Ramos Romo and Dr. Israel Ceja Andrade; as well as the financial support from UdeG (under program pro-SNI) and PROMEP (under project 103.5/07/2636).