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Integration of [(Co(bpy) 3 ] 2+ Electron Mediator with Heterogeneous Photocatalysts for CO 2 Conversion
Author(s) -
Lin Jinliang,
Hou Yidong,
Zheng Yun,
Wang Xinchen
Publication year - 2014
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201402303
Subject(s) - photocatalysis , electron transfer , semiconductor , catalysis , bipyridine , electron , photochemistry , mediator , materials science , chemistry , physics , optoelectronics , crystallography , organic chemistry , crystal structure , medicine , quantum mechanics
Abstract An efficient chemical system for electron generation and transfer is constructed by the integration of an electron mediator ([Co(bpy) 3 ] 2+ ; bpy=2,2′‐bipyridine) with semiconductor photocatalysts. The introduction of [Co(bpy) 3 ] 2+ remarkably enhances the photocatalytic activity of pristine semiconductor photocatalysts for heterogeneous CO 2 conversion; this is attributable to the acceleration of charge separation. Of particular interest is that the excellent photocatalytic activity of heterogeneous catalysts can be developed as a universal photocatalytic CO 2 reduction system. The present findings clearly demonstrate that the integration of an electron mediator with semiconductors is a feasible process for the design and development of efficient photochemical systems for CO 2 conversion.