Preparation of new visible-light sensitive photocatalyst activated with different hole-electron charge separations

制备了新型的TiO_2/WO_3和Pt纳米粒子/WO_3薄膜可见光敏感光催化电池。细胞被激活两个不同的空穴-电子电荷分离。本研究还利用α-Fe_2O_3代替WO_3制备了另一种电池，因为铁是一种廉价且大量存在于地下的材料。α-Fe_2O_3型电池的甲醇分解速率略低于WO_3型电池。这主要是由于不同的分解机理，因为在两种情况下的中间产物不同。

We prepared new visible-light sensitive photocatalytic cells composed of both TiO_2/WO_3 and Pt nano-particles/WO_3 films. The cells were activated two different hole-electron charge separations. In this study, we also prepared another cell usedα-Fe_2O_3 instead of WO_3 because Fe is very cheap and lies under the ground in large quantities. Theα-Fe_2O_3 type cells is little inferior to the WO_3 type ones in the rate of the methanol decomposition. This is mainly due to the different decomposition mechanism because the intermediate products are different at both cases.