Synergistic effect of UV and l-ascorbic acid on the reduction of graphene oxide: Reduction kinetics and quantum chemical simulations |
| |
| Affiliation: | 1. Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran 11001, Saudi Arabia;2. Department of Physics, Faculty of Science, King Khalid University, P.O. Box: 9004, Abha 61413, Saudi Arabia;3. Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), P.O. 87 Helwan, Cairo 11421, Egypt;4. Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Saudi Arabia;5. Department of Physics, Faculty of Science and Arts, Najran University, Saudi Arabia;1. Department of Chemistry, CMR Institute of Technology, 132 AECS Layout, IT Park Rd, Bengaluru 560037, India;2. VTU-RC Affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India;3. Department of Chemistry, Cambridge Institute of Technology, Bengaluru 560036, India;4. School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam 686560, India;5. Poornaprajna Institute of Scientific Research, Bengaluru 560080, India |
| |
| 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. |
| |
| Keywords: | Graphene oxide Reduction Eco-friendly Ascorbic acid Photochemistry |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
