Efficient photoinduced electron transfer from inorganic semiconductor TiO2 to bacterial hydrogenase

FEBS Letters

Krasnovsky, A.A.¹  Gogotov, I.N.¹  Nikandrov, V.V.¹  Shlyk, M.A.¹  Zorin, N.A.¹ 

[1] A.N. Bach Institute of Biochemistry, Academy of Sciences of the USSR, Leninsky Prospekt, 33, 117071 Moscow, USSR

关键词: Hydrogen photoproduction;    Titanium dioxide;    Hydrogenase;    Solar energy conversion;   

DOI  :  10.1016/0014-5793(88)81314-0

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Hydrogenase from Thiocapsa roseopersicina adsorbed on TiO₂ particles, using electrons photogenerated in the conduction band of the semiconductor, in the presence of an organic electron donor, carries out hydrogen production with the rate comparable to that obtained with reduced methyl viologen as the substrate. Under conditions of the efficient hydrogenase adsorption on TiO₂ (1.6 mM CaCl₂, 0.05 M Tris buffer, pH 7.2) the quantum efficiency of hydrogen photoproduction is up to 10%. Coupling of inorganic semiconductors with bacterial hydrogenase may be regarded as a way to the development of artificial photocatalytic systems of light energy conversion.

【 授权许可】

Unknown