The synthesis of rutile nano-structured TiO_2 composite under low temperature

摘要

In this paper, in order to improve the photocatalytic application of TiO_2, the low-density material such as Ps and TiCl_4 is proposed to be the raw carrier, and the nana-structured TiO_2 composite is obtained by combining the sol-gel technology and layer-by-layer self-assembly methods; The pure rutile nano-structured TiO_2 whose diameter is about 0.25mm are prepared under different conditions at low temperature. By being calcined under 450 °C the hollow sphere TiO_2 is prepared and its composition, size, structure analysis and characterization are studied by using X ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and thermal gravimetric analysis (DSC-TG) respectively.