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Abstract A photochemical strategy for eco-friendly reduction of graphene oxide (GO) was developed by using l -ascorbic acid (L-AA) as a photosensitive reducing agent. L-AA was excited and oxidized with… Click to show full abstract
Abstract A photochemical strategy for eco-friendly reduction of graphene oxide (GO) was developed by using l -ascorbic acid (L-AA) as a photosensitive reducing agent. L-AA was excited and oxidized with deprotonation by UV irradiation (254 nm) and the proton coupled electron transfer induces chemical reduction of GO. This photochemical process is quite eco-friendly and scalable, and the reduction kinetics and degree of GO were highly enhanced. To understand the improved reduction power by UV light, the redox properties of L-AA in the ground and excited states were characterized by using quantum chemical simulations. Based on the results, we clearly demonstrated the mechanism how UV irradiation considerably enhances the reducing power of L-AA for the reduction of GO.
Journal Title: Solid State Sciences
Year Published: 2018
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