Study on phase, molecular bonding, and bandgap of reduced graphene oxide prepared by heating coconut shell

Ananda Yogi Nugraheni, M. Nashrullah, Fandi Angga Prasetya, Fahmi Astuti, Darminto

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

26 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationFunctional Properties of Modern Materials
Editors Risdiana, Kuwat Triyana, Kuwat Triyana, Agustinus Agung Nugroho
PublisherTrans Tech Publications Ltd
Pages285-289
Number of pages5
ISBN (Print)9783038355472
DOIs
Publication statusPublished - 2015
Event2nd International Conference on Functional Materials Science, ICFMS 2014 - Lombok, Indonesia
Duration: 12 Nov 201413 Nov 2014

Publication series

NameMaterials Science Forum
Volume827
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference2nd International Conference on Functional Materials Science, ICFMS 2014
Country/TerritoryIndonesia
CityLombok
Period12/11/1413/11/14

Keywords

  • Carbon structure
  • Energy band gap
  • Heating process
  • Molecular bonding
  • Phase
  • Reduced graphene oxide

Fingerprint

Dive into the research topics of 'Study on phase, molecular bonding, and bandgap of reduced graphene oxide prepared by heating coconut shell'. Together they form a unique fingerprint.

Cite this