earticle

영어

Nature utilizes solar energy for the synthesis of various organic chemicals, which remains as a target model for the development of artificial photosynthesis systems. Natural photosynthesis through the Z scheme of two photosystems, testifies an elegant example of how a fine nexus between photocatalysis and biocatalysis could be designed in a heterogeneous phase. Devising an artificial analogue in the heterogeneous phase has been a long-standing challenge in chemistry. The present work attempts the construction of such a photobioreactor device using a semiconductor photocatalyst through the integral coupling of photocatalysis and biocatalysis cycles. It unites these two catalytic functionalities in a novel photobiocatalytic system for the ultimate goal of utilizing solar energy in the visible region for photobiosynthesis of fine chemicals. Herein we report the new visible light photocatalyst W2Fe4Ta2O17 and its redox enzyme coupled application to a photobioreactor. A new potentially promising visiblelight driven photobioreactor synthesizes fine chemical by generating NADH in a non-enzymatic light-driven process and coupling it to the enzymatic dark reaction catalysis.