2007
DOI: 10.1021/cm702286e
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Abstract: Anatase nanoparticles were obtained through a modified sol–gel route from titanium isopropoxide modified with acetic acid in order to control hydrolysis and condensation reactions. The modification of Ti(O i Pr)4 with acetic acid reduces the availability of groups that hydrolyze and condense easily through the formation of a stable complex whose structure was determined to be Ti(OCOCH3)(O i Pr)2 by means of FTIR and 13C NMR. The presence of this complex was confirmed with FTIR in the early stages of the proces… Show more

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Cited by 146 publications
(100 citation statements)
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“…Similar finding was recorded by Fatma et al [12] and Adamczyk and Dlugon [13]. Moreover, the bands at 1050, 1089, and 1138 cm -1 were ascribed to stretching of Ti-O-C while lower mode of amorphous TiO 2 appeared at 932 cm -1 [14][15].…”
Section: Fourier Transform Infrared Spectroscopy Analysis Of Tio 2 Posupporting
confidence: 86%
“…Similar finding was recorded by Fatma et al [12] and Adamczyk and Dlugon [13]. Moreover, the bands at 1050, 1089, and 1138 cm -1 were ascribed to stretching of Ti-O-C while lower mode of amorphous TiO 2 appeared at 932 cm -1 [14][15].…”
Section: Fourier Transform Infrared Spectroscopy Analysis Of Tio 2 Posupporting
confidence: 86%
“…As shown in the spectrum (Fig. 3c), the bands at This excludes partially the presence of acetate ligands or hydrolyzed species, such as Ti(OC 3 H 7 ) x (OOCCH 3 ) y OH and Ti(OC 3 H 7 ) x OH y in the mixture [20]. The formation of -OH groups (bands at 3400 cm −1 and 1633 cm −1 ) in Ti[(OH) y (OOCCH 3 ) x ] species is then favored with high hydrolysis rates for a medium amount of water.…”
Section: Effect Of Acetic Acid and In Situ Water On Acetate Coordinatmentioning
confidence: 82%
“…Here, it can be observed that the diffraction patterns of the synthesized samples compared to the diffraction pattern of TiO 2 P25 present only the anatase phase (reflection 101), this pattern was identified by the crystallographic card number 96-900-8215, whereas P25 TiO 2 presents both the anatase and rutile phases. The resulted pure anatase phase of the synthesized samples is attributed to the acetic acid employed during the synthesis, since this produces different complexes with titanium tetraisopropoxide, which provide a control of the condensation speed, thus inducing nucleation in the anatase phase as reported by Parra, R., et al [16].…”
Section: X-ray Diffraction (Xrd)mentioning
confidence: 57%