The TiO_2 nano thin film prepared by spin coating process is white, while the TiO_2 nano thin film made by dip coating process is colorless and transparent.

• 以TICl_4为通过旋转.；涂覆法制备的纳米TiO_2薄膜；表观为白色不透明膜；而以C_(16)H_(36)O_4Ti为前驱体选用浸渍-提拉法制备的薄膜为无色透明膜。