Solution of reduced graphene oxide synthesized from coconut shells and its optical properties
- Department of Physics, Faculty of Mathematics and Natural Sciences,Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111 (Indonesia)
Reduced graphene oxide (r-GO)powder has been prepared from coconut shells by carbonization process at 400°C for 3, 4 and 5 hours.Theresulted sample mass was reduced to be 60% relativelycompared to the starting material. The longer heating duration has also led to the rGO with reduced crystalinity according to the X-ray diffractometry data and TEM. The rGO solution was prepared by adding powders of 5, 10 and 15 grams into 50 ml destiled water and then centrifused at 6000 rpm for 30 minutes.The resulted solutions were seen to be varied form clear transparant, light and dark yellow to black. Measurement using particle size analyser shows that the individual rGO particles tends to be agglomerating each others to form bigger size clustering, manifested by the observed bigger size particles for the increasing amount of soluted rGO powders in water.The varying UV-visible spectra of these rGO solutions together with their optical bandgaps will also be discussed in this study.
- OSTI ID:
- 22591147
- Journal Information:
- AIP Conference Proceedings, Vol. 1725, Issue 1; Conference: ICAMST 2015: 3. international conference on advanced materials science and technology, Semarang (Indonesia), 6-7 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
CARBON OXIDES
CARBONIZATION
COCONUTS
GRAPHENE
OPTICAL PROPERTIES
PARTICLE SIZE
PARTICLES
POWDERS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0400-1000 K
TRANSMISSION ELECTRON MICROSCOPY
ULTRAVIOLET SPECTRA
VISIBLE RADIATION
VISIBLE SPECTRA
WATER
X-RAY DIFFRACTION