中文摘要：

采用静电纺丝的方法，通过调节前驱体液中SnCl2·2H2O的质量分数，制备了直径为90～180nm的SnO2纳米线，经TiCl4溶液水解处理制备得到了SnO2／TiO2薄膜电极。使用SEM和EDS对薄膜电极进行表征，通过线性扫描伏安法和光电催化测试，分析研究了SnO2／TiO2纳米复合薄膜电极的光电化学性质。结果表明，当SnCl2·2H2O质量分数为3％时，SnO2／TiO2复合薄膜电极的光电流密度达到最大；随后将其与TiO2、SnO2薄膜电极相比，SnO2／TiO2复合薄膜电极产生的光电流明显增大；复合薄膜电极对罗丹明B（RhB）的光电催化降解率在90min后可达到95％，而TiO2仅为56％、SnO2为58％。．

英文摘要：

Tin dioxide （SnO2） nanowires with diameters of 90 -180 nm have been obtained using an electrostatic spinning technique by controlling the concentration of SnCl2·2H2O in the precursor solution. SnO2/TiO2 composite film electrodes were prepared after hydrolysis of TiC14 solution. The resulting film electrodes were characterized by SEM and EDS. The photoelectroehemical properties of the SnO2/TiO2 composite film electrodes were studied using electrochemical techniques including linear sweep voltammetry and photoelectrocatalysis. The photoelectric properties of the SnO2/TiO2 composite film electrodes were optimized when using a SnCl2 -2H2O concentration of 3% in the precursor solution. The photocurrent of the SnO2/TiO2 composite film electrode was significantly higher than those of pure TiO2 or SnO2 film electrodes. The photocatalytic degradation ratio of rhodamine B （RhB） with the composite film electrode was 95% after 90 min of irradiation, higher than the corresponding values for pure TiO2 （56%） and SnO2（58% ）.