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Fe₂O₃掺杂TiO₂薄膜对甲基紫溶液光催化降解

Effects of Fe₂O₃ Doped TiO₂ film on the Photocatalytic Degradation of Methyl Violet

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【Author】 CUI Bin *, HAN Huan-Niu, LI Shu-Ni, TANG Zong-Xun, SHI Qi-Zhen (Department of Chemistry,Northwest University,Shaanxi Key Laboratory of Physico-Inorganic Chemistry,Xian 710069)

【机构】西北大学化学系/陕西省物理无机化学重点实验室；西北大学化学系/陕西省物理无机化学重点实验室西安710069；西安710069；西安71006；

【摘要】甲基紫是一种相当稳定的有机物 ,能被 Ti O2 光催化降解 .本文采用 sol-gel工艺在玻璃表面制得了均匀透明的 Ti O2 薄膜 ,研究了热处理温度、涂覆层数、掺杂 Fe2 O3 等制备工艺 ,以及溶液 p H值和助催化剂H2 O2 等因素对 Ti O2 薄膜的光催化性能和稳定性的影响 .结果表明 ,掺 Fe2 O3 的 Ti O2 薄膜对甲基紫的降解率明显优于未掺 Fe2 O3 的 Ti O2 薄膜 .更多还原

【Abstract】 The transparent TiO 2 thin films deposited on glass substrates were prepared by a sol-gel method. The effects of heat-treatment temperature, coating thickness and Fe 2O 3-doping were studied. Methyl violet was found to be easily photodegraded using by TiO 2 film coated on glass as a photocatalyst in an aqueous solution. The Fe 2O 3-doped TiO 2 film could enhance the degradation significantly.更多还原