【摘要】 采用溶胶-凝胶法,以硝酸铁Fe(NO3)3·9H2O和钛酸丁酯Ti(OBu)4为原料制备出均匀透明的TiO2-Fe2O3复合异质结构光催化薄膜,并将其分别在450℃、520℃5、40℃温度下进行了热处理。利用原子力显微镜(AFM)、紫外可见分光光度计对试样进行了表征。以甲基橙为光催化光降解对象,对材料光催化降解性能的影响,特别是在可见光区的光催化降解性能进行了讨论。结果表明,TiO2-Fe2O3复合异质结构光催化薄膜的光催化活性比单纯的TiO2结构薄膜有了明显的提高,且向可见光波段偏移,甲基橙的降解效果可以达到20%。更多还原

【Abstract】 Nano-TiO₂-Fe₂O₃ composite photocatalysis thin film was prepared by Sol-Gel method with Fe（NO₃）₃·9H₂O and Ti（OBu）₄ as raw materials.The film was treated under 450?℃,520?℃,540?℃ respectively and tested with Atom Force Microscope（AFM） and spectrophotometer.The photocatalysis property of thin film in sun’s rays especially in visible light was also discussed.The result shows that the photocatalysis of thin film was improved greatly and had excursion to visible light.The degradability rate of methyl-orange was 20%.更多还原