TY - GEN
T1 - Study on phase, molecular bonding, and bandgap of reduced graphene oxide prepared by heating coconut shell
AU - Nugraheni, Ananda Yogi
AU - Nashrullah, M.
AU - Prasetya, Fandi Angga
AU - Astuti, Fahmi
AU - Darminto,
N1 - Publisher Copyright:
© (2015) Trans Tech Publications, Switzerland.
PY - 2015
Y1 - 2015
N2 - The purpose of this work is to search reduced graphene oxide (RGO) phase by identifying the molecular bonding, energy band gap and phase of old coconut shell. The characterization was performed by using FTIR, Uv-Vis and XRD spectroscopy. The heating temperature used in this work was 400°C and 600°C. Furthermore, the type of heating atmosphere used in this research covers nitrogen, ambient air with and without rinsing step. The XRD analysis shows that the RGO phase is formed by turbostatic structure which is a pile of random arrangement of parallel layers that make up the graphite structure with cliftonite phase at temperature 400°C and 600°C. In the inert nitrogen gas treatment, there are two impurity phases such as potassium chlorate (KClO4) and sulfur (S11). The molecular bondings of C=C, C-C, C-O, C=O, C-H and O-H appeared on the FTIR spectra of the samples were indentified. Analysis by using linear regression and absorbance edge methods was conducted to result in energy gap in the range from 0.14 to 0.67 eV, indicating that the produced samples are semiconducting materials.
AB - The purpose of this work is to search reduced graphene oxide (RGO) phase by identifying the molecular bonding, energy band gap and phase of old coconut shell. The characterization was performed by using FTIR, Uv-Vis and XRD spectroscopy. The heating temperature used in this work was 400°C and 600°C. Furthermore, the type of heating atmosphere used in this research covers nitrogen, ambient air with and without rinsing step. The XRD analysis shows that the RGO phase is formed by turbostatic structure which is a pile of random arrangement of parallel layers that make up the graphite structure with cliftonite phase at temperature 400°C and 600°C. In the inert nitrogen gas treatment, there are two impurity phases such as potassium chlorate (KClO4) and sulfur (S11). The molecular bondings of C=C, C-C, C-O, C=O, C-H and O-H appeared on the FTIR spectra of the samples were indentified. Analysis by using linear regression and absorbance edge methods was conducted to result in energy gap in the range from 0.14 to 0.67 eV, indicating that the produced samples are semiconducting materials.
KW - Carbon structure
KW - Energy band gap
KW - Heating process
KW - Molecular bonding
KW - Phase
KW - Reduced graphene oxide
UR - http://www.scopus.com/inward/record.url?scp=84945205221&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.827.285
DO - 10.4028/www.scientific.net/MSF.827.285
M3 - Conference contribution
AN - SCOPUS:84945205221
SN - 9783038355472
T3 - Materials Science Forum
SP - 285
EP - 289
BT - Functional Properties of Modern Materials
A2 - Risdiana, null
A2 - Triyana, Kuwat
A2 - Triyana, Kuwat
A2 - Nugroho, Agustinus Agung
PB - Trans Tech Publications Ltd
T2 - 2nd International Conference on Functional Materials Science, ICFMS 2014
Y2 - 12 November 2014 through 13 November 2014
ER -