以联吡啶钌络合物Ru(bipy)_3~(2+)为光敏剂,甲基紫精MV~(2+)为电子交换的中继物,EDTA为电子给体,氯铂酸钾为催化剂,探讨了该体系在可见光照射下,光还原水产氢的结果。提出了用明胶作为铂催化剂的稳定剂,可以提高放氢的速度和保护催化剂不受破坏。讨论了该体系光助催化分解水产氢的可能的机理。 Ru (bipy) _3 ~ (2+) bipyridyl was used as photosensitizer, MV ~ (2+) of methyl viologen was electron exchange relay, EDTA was electron donor, potassium chloroplatinate was The results show that the system can produce hydrogen by photoreduction of water under visible light irradiation. The use of gelatin as a stabilizer for platinum catalysts has been proposed to increase the rate of hydrogen evolution and to protect the catalyst from damage. The possible mechanism of photocatalytic decomposition of aquatic hydrogen by this system is discussed.