采用磁控溅射离子镀设备制备了(TiO2-ZnO)/TiO2梯度复合薄膜,通过TEM、AFM、Raman、XPS分析了复合薄膜的结构、形貌和表面羟基含量,以甲基橙作为有机降解物,研究了( TiO2 -ZnO )/TiO2梯度复合薄膜与普通TiO2-ZnO复合薄膜和TiO2薄膜在光催化性能和光致亲水性能上的差异.结果表明:(TiO2 -ZnO )/TiO2梯度复合薄膜具有以主体为TiO2 -ZnO层、顶层为TiO2的梯度结构,且薄膜表面致密、粒径均匀(10～14nm),光催化性和亲水性均优于普通TiO2 -ZnO复合薄膜和TiO2薄膜,且其光波响应范围红移至450nm、表面羟基含量高达12.53％,同时梯度复合薄膜的抗光腐蚀性能良好,4h以后其润湿角仍保持不变.
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