Synthesis of Highly Ordered Macroporous Titania Using TiCl4 Hydrolysis

2017 International Conference on Material Engineering and Manufacturing

Wang, Chong^1 ; Yang, Cancan^1 ; Yu, Mei^1 ; Yu, Zhe^1

Biomedical Microdevices Research Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen

518055, China^1

关键词: Calcination temperature;    Filling time;    High quality;    Highly ordered structure;    Hydrochloric acid solution;    Ordered macroporous;    Organic impurities;    Titanium tetrachlorides;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/265/1/012032/pdf
DOI  :  10.1088/1757-899X/265/1/012032

来源: IOP

【 摘 要 】

The high quality ordered macroporous titania has been successfully synthesized with the hydrolysis of titanium tetrachloride (TiCl4) by heating the hydrochloric acid solution of TiCl4 which filled in polystyrene templates. In this method, there is no need of filling the interspaces of polystyrene template repeatedly and no introduction of organic impurities either. The best conditions of synthesizing ordered macroporous titania are found that the pH value is 2.0∼2.5, the filling time is 3h and the calcination temperature for the filled templates is 500°C. The macroporous titania synthesized show highly ordered structure and obvious photonic bandgap.