PAPERmaking! FROM THE PUBLISHERS OF PAPER TECHNOLOGY Volume 2, Number 1, 2016
Table 1 FT-IR data obtained from analysis of TiO 2 nanopigments samples Morphology Figure 3 is the SEM micrographs of the deposited TiO 2 sample in the form of anatase. The sample was prepared via hydrothermal method at 120°C. It is obvious that the sample has amorphous structure and it is mainly in the form of compact and nonporous structure.
Fig. 3 SEM micrographs of prepared TiO 2 nanopigment sample (anatase) via hydrothermal method at 120°C a high magnification b low magnification TEM was used to further examine the particle size, crystallinity and morphology of samples. TEM bright field micrographs of anatase, mixture of anatase and brookite and rutile are shown in Fig. 4. It is clearly seen that the TiO 2 nanopigments in anatase phase (Fig. 4a) are mostly of spherical-like morphology whereas in Fig. 4b TiO 2 nanopigments are consisting mainly of both rod and spherical-like structures. This result is in agreement with that obtained from XRD data where the sample is composed mainly of two mixed phases (anatase and brookite). The TiO 2 nanopigment in rutile phase, Fig. 4c, mostly has needle-like morphology.
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Article 3 – Titanium Coating Pigments
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