Green sonochemical synthesis of few-layer graphene in instant coffee

Green sonochemical synthesis of few-layer graphene in instant coffee

In this work, we reported for the first time the use of bath sonication of graphite in instant coffee to produce few-layered graphene flakes. The sonication of graphene in instant coffee allows facile production of graphene flakes in a green medium and avoids the application of commonly used organic...

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Main Authors: Abu Hannifa, Abdullah, Zulhelmi, Ismail, Anis Sakinah, Zainal Abidin, Kamal, Yusoh
Format: Article
Language:English
Published: Elsevier 2019
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/25100/
http://umpir.ump.edu.my/id/eprint/25100/
http://umpir.ump.edu.my/id/eprint/25100/
http://umpir.ump.edu.my/id/eprint/25100/1/Green%20sonochemical%20synthesis%20of%20few.pdf
id ump-25100
recordtype eprints
spelling ump-251002019-06-18T01:16:12Z http://umpir.ump.edu.my/id/eprint/25100/ Green sonochemical synthesis of few-layer graphene in instant coffee Abu Hannifa, Abdullah Zulhelmi, Ismail Anis Sakinah, Zainal Abidin Kamal, Yusoh TP Chemical technology In this work, we reported for the first time the use of bath sonication of graphite in instant coffee to produce few-layered graphene flakes. The sonication of graphene in instant coffee allows facile production of graphene flakes in a green medium and avoids the application of commonly used organic exfoliating solvents such as Dimethylformamide or N, N methyl pyrrolidone. We verified the presence of graphene flakes in the resulting supernatant using local maximum UV spectrum (269 nm) and performed thickness and length measurements of said graphene flakes by atomic force microscopy and transmission electron microscopy. The defect and purity of exfoliated graphene flakes were investigated using Raman spectroscopy (ID/IG = 0.85) and X-ray photon spectroscopy (C/O = 2.6) meanwhile Fourier transform infrared spectroscopy was used to identify the functional group attached to graphene. The production of graphene flakes in coffee was shown to have a time exponent factor of 1.07, which impressively is higher than the time exponent factor for typical sonication in a solvent and surfactant. Elsevier 2019 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25100/1/Green%20sonochemical%20synthesis%20of%20few.pdf Abu Hannifa, Abdullah and Zulhelmi, Ismail and Anis Sakinah, Zainal Abidin and Kamal, Yusoh (2019) Green sonochemical synthesis of few-layer graphene in instant coffee. Materials Chemistry and Physics, 222. pp. 11-19. ISSN 0254-0584 https://doi.org/10.1016/j.matchemphys.2018.09.085 https://doi.org/10.1016/j.matchemphys.2018.09.085
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
spellingShingle TP Chemical technology
Abu Hannifa, Abdullah
Zulhelmi, Ismail
Anis Sakinah, Zainal Abidin
Kamal, Yusoh
Green sonochemical synthesis of few-layer graphene in instant coffee
description In this work, we reported for the first time the use of bath sonication of graphite in instant coffee to produce few-layered graphene flakes. The sonication of graphene in instant coffee allows facile production of graphene flakes in a green medium and avoids the application of commonly used organic exfoliating solvents such as Dimethylformamide or N, N methyl pyrrolidone. We verified the presence of graphene flakes in the resulting supernatant using local maximum UV spectrum (269 nm) and performed thickness and length measurements of said graphene flakes by atomic force microscopy and transmission electron microscopy. The defect and purity of exfoliated graphene flakes were investigated using Raman spectroscopy (ID/IG = 0.85) and X-ray photon spectroscopy (C/O = 2.6) meanwhile Fourier transform infrared spectroscopy was used to identify the functional group attached to graphene. The production of graphene flakes in coffee was shown to have a time exponent factor of 1.07, which impressively is higher than the time exponent factor for typical sonication in a solvent and surfactant.
format Article
author Abu Hannifa, Abdullah
Zulhelmi, Ismail
Anis Sakinah, Zainal Abidin
Kamal, Yusoh
author_facet Abu Hannifa, Abdullah
Zulhelmi, Ismail
Anis Sakinah, Zainal Abidin
Kamal, Yusoh
author_sort Abu Hannifa, Abdullah
title Green sonochemical synthesis of few-layer graphene in instant coffee
title_short Green sonochemical synthesis of few-layer graphene in instant coffee
title_full Green sonochemical synthesis of few-layer graphene in instant coffee
title_fullStr Green sonochemical synthesis of few-layer graphene in instant coffee
title_full_unstemmed Green sonochemical synthesis of few-layer graphene in instant coffee
title_sort green sonochemical synthesis of few-layer graphene in instant coffee
publisher Elsevier
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/25100/
http://umpir.ump.edu.my/id/eprint/25100/
http://umpir.ump.edu.my/id/eprint/25100/
http://umpir.ump.edu.my/id/eprint/25100/1/Green%20sonochemical%20synthesis%20of%20few.pdf
first_indexed 2023-09-18T22:38:22Z
last_indexed 2023-09-18T22:38:22Z
_version_ 1777416748159467520

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