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- Title
A UV-light induced photochemical method for graphene oxide reduction.
- Authors
Xue, Bing; Zou, Yingquan; Yang, Yuchun
- Abstract
Chemical reduction of graphene oxide (GO) has been considered as a promising route towards the large scale production of graphene. Herein, a rapid, efficient photochemical method for preparing reduced graphene oxide (RGO) by ultraviolet (UV) irradiation of a mixture solution containing a photoinitiator and Monoethanolamine (MEA) compound in ethanol has been developed. In this route, phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (GR-XBPO) was used as the reductant and MEA as the oxygen inhibition agent. After UV irradiation, oxygen-containing groups (OCGs) on GO plane and edges are being largely removed due to the reduction of GO by free radicals generated by photoinitiator decomposition. X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, and ultraviolet and visible spectrophotometer showed that GR-XBPO can efficiently reduce GO at room temperature. It is also found that the electrical conductivity of RGO fabricated by this rapid route (~10 min) is more competitive compared to other reported works. Moreover the corresponding reduction mechanism was being discussed. This work puts forward a novel method for preparing graphene, and has great potential in scaling up graphene production and developing graphene materials.
- Subjects
GRAPHENE oxide; GRAPHENE; IRRADIATION; X-ray photoelectron spectroscopy; RAMAN spectroscopy
- Publication
Journal of Materials Science, 2017, Vol 52, Issue 21, p12742
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-017-1266-4