Integration of an aminopyridine derived cobalt based homogenous cocatalyst with a composite photocatalyst to promote H2 evolution from water†
Abstract
Inexpensive cocatalysts are promising materials to improve the performance of photocatalytic systems. However, a cocatalyst can be anchored onto a photosensitizer in certain amount and further loading can hinder the visible light by blocking the active sites of the photosensitizer. Herein, we introduce the utilization of a cobalt based homogenous cocatalyst with composite photocatalyst CdS/Ni3C. The homogenous cocatalyst did not occupy the physical space on the photosensitizer and the performance of CdS/Ni3C was significantly enhanced from 263 μmol h−1 to 750 μmol h−1. The present study showed that homogenous cocatalysts paved a way to further capture the electrons from photoexcited composite photocatalysts and have great potential to enhance the photocatalytic performance for low cost H2 evolution under visible light.
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