纳米Sc^(3+)/TiO_2光催化性能研究

Study on the photocatalytic property of Sc^(3+) doped TiO_2 powders

稀土钪改性TiO_2光催化性能研究较少,基于此,采用溶胶-凝胶法制备了不同搀杂量的光催化剂,通过XRD和亚甲基蓝的脱色实验,探讨了空气流速、催化剂用量和搀杂量对亚甲基蓝的脱色效果。结果表明:搀杂Sc^(3+)质量分数为0.75%,空气流速达到1.1L/min,催化剂用量为1.2g/L时,催化性能达到最佳。

There are few papers about paper,TiO2 photocatalyst was made the photoeatalytic property of Sc^3＋ doped TiO2 powders. In this by sol-gel method under the different conditions. The calcined temperature,the velocity of air, the amount of catalyst and the doped Sc^3＋ were investigated through XDR and MB degradation experiments. The results indicated that the better degradation effect was reached when 1.2 g/L TiO2 dopes with 0. 75%（mol/L） Sc^3＋ was used under 500 ℃ and 1.3 L/min of air speed.