累托石-TiO_2薄膜的制备及其降解染料废水

Preparation of Rectorite-TiO_2 Thin Film and Its Application in the Degradation of Dye Waste Water

以累托石和钛酸丁酯为主要原料制备出累托石-TiO2薄膜,将其负载在玻璃表面上,研究了其在紫外光和太阳光下催化降解甲基橙的性能.实验结果表明:在相同的制备条件下,累托石-TiO2薄膜的光催化活性高于TiO2薄膜的光催化活性;制备累托石-TiO2薄膜时,薄膜的层数影响其催化活性;以累托石-TiO2薄膜为催化剂,在太阳光下降解甲基橙7 h,甲基橙脱色率为52.9%.

The rectorite-TiO2 thin film photocatalyst was prepared by rectorite and tetrabutyl titanate and immobilized on glass. The photocatalytic activities of rectorite-TiO2 thin film using for degradation of methyl orange under ultraviolet and solar light irradiation were investigated. The results indicated that the catalytic activities of rectorite-TiO2 thin film was better than that of TiO2 thin film under the same conditions of preparation. The catalytic activity was affected by the number of the layers of rectorite-TiO2 when preparing rectorite-TiO2 thin films. The decolorization rate of methyl orange can reach 52.9% by rectoriteTiO2 thin films under solar light irradiation for 7 hours.