In this era of increasing global demand for energy and to reduce the impact of energy production on climate change, Artificial photosynthesis is one of the most promising techniques Converting solar energy into fuel via photo-assisted water splitting to generate H2 or drive CO2 photo reduction. Amongst the Several reported methods of artificial photosynthesis photo catalysts based artificial photosynthetic route is one of the most useful methods, but this method faces several challenges like minimal selectivity of the products, conversion efficiency, and stability of the photo catalysts for conventional setups. In this study, we account for a novel strategy for NADH regeneration and selective solar fuel production via an artificial Z-scheme mechanism by mimicking the natural photosynthesis occurring in green plants. As a means to achieve this goal, we have developed a general approach towards the synthesis of chemically converted graphene (CCG) based-light harvesting chromophores. The use of this covalently bonded light-harvesting photo-catalyst resulted in the successful transfer of photo generated electrons to a higher energy level in the form of the letter ‘Z’. The proposed CCG-based light-harvesting chromophore photo catalyst would produce a higher amount of NADH, NADPH, and solar fuel from CO2 under visible light. The system exhibited excellent NADH regeneration up to 87.87% and L-glutamate 94.30% production under visible light irradiation. The current research endeavour highlights the development and application of a self-assembled photo catalyst for the selective production of L-glutamate from α-ketoglutarate.

Synthesis of solar chemicals with photocatalytic/biocatalytic conversion of CO2

ACS Spring 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.