TY - GEN
T1 - Characterization of anatase synthesized by sonochemical means and effects of heat treatments
AU - González-Reyes, Leonardo
AU - Hernández-Pérez, I.
AU - Rosales, Héctor Dorantes
AU - Arce-Estrada, Elsa M.
AU - Hernández, Francisco C.Robles
PY - 2008
Y1 - 2008
N2 - In the present research were characterized anatase particles produced by sonochemical means. The TEM, XRD and SEM confirmed that sonochemical synthesis is an effective method to produced nanometric anatase. Relatively low temperature, 500°C, heat treatments show that anatase can be coarsened from 6.4 nm to 28.3 nm after 72 hours of heat treatment and in the absence of phase transformations. Anatase coarsens following a behavior similar to the one described by the LSW theory. The heat treated anatase particles show significant morphological changes as a function of heat treatment time and this directly affects the surface area of the anatase particles. In addition, the results of the effects of heat treatment on Photocatalytic activity are presented. The characterization of the anatase particles were carried out by means of BET, TGA, XRD, Raman, FTIR, UV-Vis and TEM.
AB - In the present research were characterized anatase particles produced by sonochemical means. The TEM, XRD and SEM confirmed that sonochemical synthesis is an effective method to produced nanometric anatase. Relatively low temperature, 500°C, heat treatments show that anatase can be coarsened from 6.4 nm to 28.3 nm after 72 hours of heat treatment and in the absence of phase transformations. Anatase coarsens following a behavior similar to the one described by the LSW theory. The heat treated anatase particles show significant morphological changes as a function of heat treatment time and this directly affects the surface area of the anatase particles. In addition, the results of the effects of heat treatment on Photocatalytic activity are presented. The characterization of the anatase particles were carried out by means of BET, TGA, XRD, Raman, FTIR, UV-Vis and TEM.
KW - Electron microscopy
KW - Functional applications
KW - Grain size
KW - Sonochemical treatment
KW - TiO
UR - http://www.scopus.com/inward/record.url?scp=53849146060&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:53849146060
SN - 9780873397162
T3 - TMS Annual Meeting
SP - 497
EP - 502
BT - TMS2008 - 137th Annual Meeting and Exhibition Supplemental Proceedings
T2 - TMS 2008 Annual Meeting Supplemental: Materials Processing and Properties
Y2 - 9 March 2008 through 13 March 2008
ER -