【摘要】 利用水热法制备了几种过渡金属离子 (Zn2 +、Co2 +、Cu2 +)掺杂的TiO2 复合纳米粒子 (表示为M3d-TiO2 ) ,测定了M3d-TiO2 纳米结构多孔膜电极和用CdS敏化各掺杂电极的光电流作用谱和光电流 -电势曲线。实验结果表明 ,在所研究的M3d-TiO2 电极中 ,只有Zn2 +-TiO2 电极的光电流大于未掺杂的TiO2 纳米结构多孔膜电极。用CdS敏化各掺杂电极 ,避免了电子损失 ,大大提高了光电转换效率 ,讨论了敏化电极的光电转换机理更多还原

【Abstract】 The 3d transition metal (Co,Cu,Zn) doped TiO 2 (abb.M 3d -TiO 2)and CdS Comples for TiO 2 nanoporous film was investigated with photoelectrochemical techniques.The results show that the Conversion efficiency of light to electricity was greatly improved.of all the M 3d -TiO 2 investigated in this paper,however,the photocurrent intensity of Zn 2+ -TiO 2 nanostructured film electrode was higher than that of undoped TiO 2 electrode.It was explained that in the case of this type of photosensitization,the back electron transfer from the TiO 2 conduction band to the solution was refrained,thus the losses of electrons were avoided.更多还原