Low-temperature synthesis of Bi4Ti3O12 nanocrystals by hydrothermal method
The Bi4Ti3O12 nanocrystals were synthesized by a hydrothermal method, and NaOH was used as a pH-adjusting agent. The effect of reaction temperature on formation and morphologies of Bi4Ti3O12 nanocrystals was investigated. The single-phase Bi4Ti3O12 nanocrystals were prepared at 140–220 °C. As the Bi4Ti3O12 nanocrystals were synthesized at 140 °C, it consisted of the fine grains with 10–30 nm grain size. With increasing the reaction temperature, the flake-like Bi4Ti3O12 grains were formed and grew up. At high reaction temperatures (200–220 °C), they mainly consisted of the flake-like grains.
This work was financially supported by 111 project of China (No. B13035) and the Fundamental Research Funds for the Central Universities (WUT: 2016III020).
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