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Colloidal CdS—Pt photocatalyst stabilized by pendant viologen polymer for photoinduced electron transfer and hydrogen evolution

1992; Elsevier BV; Volume: 64; Issue: 3 Linguagem: Inglês

10.1016/1010-6030(92)85011-i

1873-2666

Yoshio Nosaka, K. Yamaguchi, Atsushi Kuwabara, Hajime Miyama, Ryo Baba, Akira Fujishima,

Chalcogenide Semiconductor Thin Films

Colloidal CdS was stabilized using a functionalized polymer for electron mediation. The kinectics of electron transfer from colloidal CdS to the electron mediator were studied using laser flash photolysis. In the presence of colloidal platinum, the photoinduced electrons were relayed to the platinum and hydrogen was evolved using a sacrificial electron donor. The efficiency of hydrogen evolution significantly increased when the pendant viologen polymer was used as stabilizing agent.