alexa Comparative examination of titaniananocrystals synthesized by peroxo titanic acid approach from different precursors.
Materials Science

Materials Science

Research & Reviews: Journal of Material Sciences

Author(s): YongJun Liu, Mami Aizawa, ZhengMing Wang, Hiroaki Hatori, Naofumi Uekawa

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Titanium dioxide nanocrystalline particles were synthesized by peroxo titanium acid (PTA) approach from titanium alkoxide and inorganic salt precursors, and their structural and surface properties, porosities, and photocatalytic activities were comparatively examined by XRD, TG/DTA, DRIFT, UV–vis, low temperature N2 adsorption, and methyl orange (MO) degradation. It was found that nanoparticles with single anatase phase can be obtained from alkoxide precursor even near room temperature if synthesis conditions are appropriately controlled. PTA-derived anatase nanoparticles from titanium alkoxide precursor have smaller crystalline sizes and better porosities, and contain less amount of peroxo group and no organic impurities as compared to those from TiCl4 precursor. The advantages in structural property, porosity, and surface properties (few deficiencies) lead to a much better photocatalytic activity for TiO2 nanoparticles from titanium alkoxide precursor in comparison with those from TiCl4 precursor.

This article was published in J Colloid Interface Sci and referenced in Research & Reviews: Journal of Material Sciences

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