The result of UV-vis shows that the absorbed valve values of TiO 2(C-Q),TiO 2(S-Q) and TiO 2 (S-dar) are 350nm,360nm and 380nm respectively,and the widths of forbidden band are 3.5,3.44 and 3.2eV respectively.

• 紫外可见吸收光谱表明TiO2 (C -Q) ；TiO2 (S -Q)和TiO2 (S -dar) 3种样品吸收阈值分别为 35 0 ；36 0和 380nm .；对应的禁带宽度分别为 3