Abstract
Highly crystalline and highly specific surface area TiO2 nanocrystals were successfully prepared using a non-hydrolytic sol–gel method that involves the titanium tetrachloride (TiCl4) as the metal oxide precursor with n-butanol as the oxygen donor at a low temperature without subsequent thermal procedure. The prepared TiO2 samples were about 10 nm in diameter on the basis of characterisations with X-ray diffraction, transmission electron microscopy and high-resolution transmission electron microscopy. Evaluation of the photocatalytic activity of the synthesised TiO2 was performed based on decomposition of organic dye rhodamine B under artificial solar light. It turned out that the as-synthesised TiO2 exhibits higher photocatalytic activities in degradation rhodamine B than the famous commercial photocatalyst P25. This is mainly attributed to the synthesis of anatase TiO2 having a good water dispersion and high specific surface area, which can be widely used in various fields.
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