Hydrogen Production from Water Splitting by Use of Encapsulated Photocatalysts with Polymer

研究了一种新型的液态水光催化分解制氢方法，采用包覆聚合法和其他方法在半导体微粉如硫化镉、氧化铜、氧化镓等表面包覆了聚合物。实验结果表明，聚甲基丙烯酸甲酯、聚丙烯酸丁酯和胶体滴定聚合物等聚合方法制备的半导体粒子具有无光腐蚀、带隙窄、无毒、对可见光敏感、能量效率高等优点，是一种性能优良的新型光催化裂解制氢催化剂。

The popose of this investigation is to a novel method for production of hydrogen by photocatalytic decomposition of liquid water.The semiconductor fine powders such as cadmium sulfide, copper (I) oxide, Gallium (III) oxide and others were thinly coated with polymer by means of capsulated polymerization method and other method. These modified semiconductor particles were suspended into water and irradiated using 500W xenon lamp.From experimental results, the encapsulated semiconductor particles with polymer such as polymethyl methacrylate, polybutyl acrylate and colloid titration polymer by polymerization method and other method had no photocorrosion, narrower band gap, no poison, making them sensitize to the visible ray and high energy efficiency, and were found out to be new excellent photocatalysts for production of hydrogen by water splitting.