資料
酸化物半導体光触媒を用いた太陽光と水からの直接水素製造プロセス
1999 年 24 巻 1 号 p. 81-88
詳細
1999 年 24 巻 1 号 p. 81-88
Hydrogen production from water using inexhaustible solar light, which is considered to be an artificial photosynthesis reaction, is one of dream technologies for human beings. Here, recent progress in photocatalytic water splitting was introduced. First, it was shown that Na2CO3 addition method was very useful to produce H2 and O2 from water stoichiometrically using simple semiconductor photocatalysts such as Pt/TiO2. Using this method, solar hydrogen production was demonstrated for the first time. Then, a two-step water splitting system, which was similar to Z-scheme of photo-synthesis, was newly proposed in order to utilize visible light.
