TiO2纳米管/介孔SiO2复合膜的制备及生物活性研究

摘要

TiO2 nanotubes/mesoporous S1O2 composite films were prepared by sol-gel and dip-coating methods. The surface composition, microstructure and surface morphology of the films were characterized by SAXRD, FTIR. HRTEM and FESEM, respectively. On the Ti substrates with highly ordered TiO2 nanotube arrays, the composite film, using sol-gel and dip-coating technology to coat hexagonal phase mesoporous SiO2 thin film, exhibits a very good bioactivity.%以表面构筑了TiO2纳米管阵列的金属钛为基底,采用溶胶-凝胶工艺和浸渍-提拉技术涂覆介孔SiO2 薄膜,构建了TiO2纳米管/介孔SiO2复合膜.利用SAXRD、FTIR、HRTEM和FESEM等表征样品的结构和微观形貌.研究表明,在高度有序、规整排列的TiO2纳米管阵列基底上,利用溶胶-凝胶工艺和浸渍-提拉技术涂覆有六方相介孔SiO2薄膜的复合膜具有良好的生物活性.