Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy

Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy

In this work, an application of UV spectroscopy for facile prediction of liquid –exfoliated graphene size is discussed. Dynamic light scattering method was used to estimate the graphene flake size (<d> whilst UV spectroscopy measurement was carried out for extinction coefficient value (ε) dete...

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Bibliographic Details
Main Authors: Zulhelmi, Ismail, Kamal, Yusoh
Format: Conference or Workshop Item
Language:English
Published: AIP Publishing LLC 2016
Subjects:
TP Chemical technology
TS Manufactures
Online Access:http://umpir.ump.edu.my/id/eprint/13864/
http://umpir.ump.edu.my/id/eprint/13864/
http://umpir.ump.edu.my/id/eprint/13864/
http://umpir.ump.edu.my/id/eprint/13864/1/Facile%20method%20for%20liquid-exfoliated%20graphene%20size%20prediction%20by%20UV-visible%20spectroscopy.pdf
id ump-13864
recordtype eprints
spelling ump-138642018-12-31T08:40:56Z http://umpir.ump.edu.my/id/eprint/13864/ Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy Zulhelmi, Ismail Kamal, Yusoh TP Chemical technology TS Manufactures In this work, an application of UV spectroscopy for facile prediction of liquid –exfoliated graphene size is discussed. Dynamic light scattering method was used to estimate the graphene flake size (<d> whilst UV spectroscopy measurement was carried out for extinction coefficient value (ε) determination. It was found that the value of (ε) decreased gradually as the graphene size was further reduced after intense sonication time (7h). This observation showed the influence of sonication time on electronic structure of graphene. A mathematical equation was derived from log-log graph for correlation between (<d>) and (ε) value. Both values can be expressed in a single equation as (<d> = (3.4 × 10−2) ε1.2). AIP Publishing LLC 2016-07 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/13864/1/Facile%20method%20for%20liquid-exfoliated%20graphene%20size%20prediction%20by%20UV-visible%20spectroscopy.pdf Zulhelmi, Ismail and Kamal, Yusoh (2016) Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy. In: AIP Conference Proceedings: 2nd International Conference on Functional Materials and Metallurgy (ICoFM 2016), 28 May 2016 , Penang, Malaysia. pp. 1-5., 1756 (070002). ISSN 0094-243X ISBN 978-0-7354-1414-3 http://dx.doi.org/10.1063/1.4958778 DOI: 10.1063/1.4958778
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
TS Manufactures
spellingShingle TP Chemical technology
TS Manufactures
Zulhelmi, Ismail
Kamal, Yusoh
Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy
description In this work, an application of UV spectroscopy for facile prediction of liquid –exfoliated graphene size is discussed. Dynamic light scattering method was used to estimate the graphene flake size (<d> whilst UV spectroscopy measurement was carried out for extinction coefficient value (ε) determination. It was found that the value of (ε) decreased gradually as the graphene size was further reduced after intense sonication time (7h). This observation showed the influence of sonication time on electronic structure of graphene. A mathematical equation was derived from log-log graph for correlation between (<d>) and (ε) value. Both values can be expressed in a single equation as (<d> = (3.4 × 10−2) ε1.2).
format Conference or Workshop Item
author Zulhelmi, Ismail
Kamal, Yusoh
author_facet Zulhelmi, Ismail
Kamal, Yusoh
author_sort Zulhelmi, Ismail
title Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy
title_short Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy
title_full Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy
title_fullStr Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy
title_full_unstemmed Facile Method for Liquid-exfoliated Graphene Size Prediction by UV-visible Spectroscopy
title_sort facile method for liquid-exfoliated graphene size prediction by uv-visible spectroscopy
publisher AIP Publishing LLC
publishDate 2016
url http://umpir.ump.edu.my/id/eprint/13864/
http://umpir.ump.edu.my/id/eprint/13864/
http://umpir.ump.edu.my/id/eprint/13864/
http://umpir.ump.edu.my/id/eprint/13864/1/Facile%20method%20for%20liquid-exfoliated%20graphene%20size%20prediction%20by%20UV-visible%20spectroscopy.pdf
first_indexed 2023-09-18T22:16:57Z
last_indexed 2023-09-18T22:16:57Z
_version_ 1777415400876670976

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