Chemical exfoliation and microwave absorption of reduced graphene oxide synthesized from old coconut shells

Affandi Faisal Kurniawan, Khoirotun Nadiyyah, Mohammad Syaiful Anwar, R. Andika Ajiesastra, Mashuri, Triwikantoro, Darminto*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

In this study, chemical exfoliation with the addition of hydrochloric acid (HCl) solution of old coconut shell reduced graphene oxide (rGO) was carried out. The purpose of this study was to confirm the formation of the rGO phase and to investigate the effect of heating temperature variations and chemical exfoliation processes with the addition of HCl solution on the reflection loss value of old coconut shell rGO. The heating temperature variation is at 400°C and 700°C. Three variations of 1: 1, 1: 5, and 1:10 mole ratios are used in the mixing process of HCl with rGO. Based on the results of XRD testing, the old coconut shell charcoal has formed an rGO phase. Furthermore, VNA testing shows that the biggest reflection loss value is -8.42 dB at a frequency of 10.52 GHz achieved by the sample with the lowest electrical conductivity.

Original languageEnglish
Article number012003
JournalJournal of Physics: Conference Series
Volume1951
Issue number1
DOIs
Publication statusPublished - 12 Jul 2021
Event1st International Symposium on Physics and Applications, ISPA 2020 - Surabaya, Virtual, Indonesia
Duration: 17 Dec 202018 Dec 2020

Fingerprint

Dive into the research topics of 'Chemical exfoliation and microwave absorption of reduced graphene oxide synthesized from old coconut shells'. Together they form a unique fingerprint.

Cite this