中文摘要：

利用阳极氧化法在钛金属基体表面制备高度有序的TiO2纳米管阵列薄膜（TNA）,将其浸泡在AgNO3溶液中,通过紫外光照射,得到Ag纳米颗粒负载在TNA表面的复合结构（Ag-TNA）。采用SEM、EDS、XRD、XPS、UV-Vis光谱等手段对Ag-TNA复合结构进行分析,研究了Ag-TNA复合纳米结构的光催化性能、光电化学性能及抗菌性能。结果表明,相对于TNA,Ag-TNA复合结构表现出更为优良的光电化学活性,同时又具有优良的广谱抗菌性能。

英文摘要：

TiO2 nanotube arrays （TNA） were fabricated by anodization of Ti in fluoride containing electrolytes. Then Ag-TiO2 nanotube arrays （Ag-TNA） were prepared by loading silver nanoparticles into TiO2 nanotube via photochemical reduction of AgNO3 solution with different Ag contents. The as-prepared samples were characterized by field-emission scanning electron microscopy （FE-SEM）, energy-dispersive X-ray spectroscopy （EDS）, X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS） and UV-Vis diffuse reflectance spectroscopy （UV-Vis）. The result shows Ag-TNA have the best efficiency of photocatalytic degradation with methyl blue （MB） as probing molecule in aqueous solution and good anti-bacterial properties.