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.
Original language | English |
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Pages (from-to) | 120-125 |
Number of pages | 6 |
Journal | Solid State Sciences |
Volume | 84 |
DOIs | |
State | Published - 1 Oct 2018 |
Keywords
- Ascorbic acid
- Eco-friendly
- Graphene oxide
- Photochemistry
- Reduction