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中文摘要：
以PAN基碳纤维（CF）为基体,钛酸丁酯为前驱体,通过溶胶凝胶浸渍涂覆法将TiO2负载于经过表面修饰的CF上,制备CF负载的TiO2光催化薄膜。采用扫描电子显微镜（SEM）和X射线衍射仪（XRD）表征了制备材料的形态结构,通过超声振荡清洗测试了CF对TiO2的负载牢度,以质量浓度为80mg/L的酸性橙Ⅱ溶液为目标降解物,测试了材料在紫外线光照下的催化性能。结果表明：溶胶浓度影响制备材料的形态结构、CF对TiO2的负载率及负载牢度;溶胶浓度和退火温度对制备材料的催化活性有明显的影响。Ti浓度为0.5mol/L的溶胶制备的TiO2/CF负载牢度好,负载率高,催化活性好。
英文摘要：
Photocatalysed titanium dioxide（TiO2） thin film was prepared and deposited on polyacrylonitile based carbon fiber（PAN-CF） substrates with tetrabutyl titanate as precursor through a facile sol-gel dip coating technique.Scanning electron microscopy（SEM） and X-ray diffraction（XRD） were utilized to investigate the morphologies and structures of the photocatalysed TiO2/CF film.The load fastness of TiO2 on CF was evaluated by ultrasonic vibration method and the photocatalytic properties of TiO2 /CF film were investigated by degrading acid orange Ⅱ（80mg/L） under UV irradiation.The results suggest that the concentration of the sol have significant effects on the morphologies and structures of TiO2/CF film,the load rate of TiO2 and load fastness.It is also shown that the catalytic activity of TiO2/CF film was remarkably influenced by the concentrations of the sol and annealing temperature.As the results indicated,the TiO2/CF prepared from the Ti sol with concentration of 0.5mol/L displayed better load fastness,higher load rate and excellent catalytic performance.
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