Green reduction of graphene oxide by using phtoextracts from banana peels

Graphene is a 2-dimensional (2D) material that attracts many researches interest due to its significant properties and applications. Graphene can be synthesize from oxidation of graphite flakes and reduced by using reductant to become graphene nanosheets. Graphene oxide can be reduced chemically by...

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Main Author:	Jiah Chee, Soh
Format:	Undergraduates Project Papers
Language:	English English English
Published:	2015
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/11048/ http://umpir.ump.edu.my/id/eprint/11048/ http://umpir.ump.edu.my/id/eprint/11048/1/FKKSA%20-%20SOH%20JIAH%20CHEE%20%20%28CD8985%29.pdf http://umpir.ump.edu.my/id/eprint/11048/2/FKKSA%20-%20SOH%20JIAH%20CHEE%20%20%28CD8985%29%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/11048/3/FKKSA%20-%20SOH%20JIAH%20CHEE%20%20%28CD8985%29%20CHAP%203.pdf

id	ump-11048
recordtype	eprints
spelling	ump-110482015-11-04T00:56:32Z http://umpir.ump.edu.my/id/eprint/11048/ Green reduction of graphene oxide by using phtoextracts from banana peels Jiah Chee, Soh QD Chemistry Graphene is a 2-dimensional (2D) material that attracts many researches interest due to its significant properties and applications. Graphene can be synthesize from oxidation of graphite flakes and reduced by using reductant to become graphene nanosheets. Graphene oxide can be reduced chemically by using reducing agents such as hydrazine or dimethlyhydrazine. However, these chemicals are highly poisonous and toxic, which will bring harmful effect to human beings and environment. Therefore great care is needed when handling these materials and it requires extra routes to remove the impurities introduced by the chemical reduction of graphene oxide such as C-N. To ease the synthesis of good quality and environment friendly graphene, green reduction of graphene oxide becomes an alternative way. In this study, phytoextracts from banana peels was used as the reducing agent due to its high phenolic contents and antioxidant activity. Graphite oxide was fabricated using graphite flakes before undergoing ultrasonication for exfoliation to form the graphene oxide. The graphene oxide was reduced by using phytoextracts from banana peels at room temperature and refluxed temperature. Optimization of phytoextracts reduction was carried out by varying the phytoextracts concentration, reduction time and reduction temperature. The graphene oxide and graphene were characterized by using Ultraviolet-visible spectrophotometer (UV-Vis), Fourier Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and cyclic voltammetry analysis (CV) for the fabrication of glucose sensor. UV-Vis result for graphene oxide shows an absorption peak at range of 230 nm and red-shifted to 270 nm for phytoextract reduced graphene oxide (PRGO). Graphite oxide (GO) in FTIR study shows intense band at 1623 cm-1 (C=O stretching), 1053 cm-1 (for C-O stretching), and a broad band around 3332 cm-1 for hydroxyl group. PRGO shows the a decrease in the intensity at 3332 cm-1, but does not remove the peak at 1052 cm-1 and 1623 cm-1. PRGO also exhibits a comparable solubility as conventional reduced graphene oxide and in the application of glucose sensor; PRGO was able to detect a glucose concentration of 0.1 mM by using glassy carbon electrode (GCE) at a scan rate of 50 mVs-1. 2015 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11048/1/FKKSA%20-%20SOH%20JIAH%20CHEE%20%20%28CD8985%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/11048/2/FKKSA%20-%20SOH%20JIAH%20CHEE%20%20%28CD8985%29%20CHAP%201.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/11048/3/FKKSA%20-%20SOH%20JIAH%20CHEE%20%20%28CD8985%29%20CHAP%203.pdf Jiah Chee, Soh (2015) Green reduction of graphene oxide by using phtoextracts from banana peels. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:91267&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English
topic	QD Chemistry
spellingShingle	QD Chemistry Jiah Chee, Soh Green reduction of graphene oxide by using phtoextracts from banana peels
description	Graphene is a 2-dimensional (2D) material that attracts many researches interest due to its significant properties and applications. Graphene can be synthesize from oxidation of graphite flakes and reduced by using reductant to become graphene nanosheets. Graphene oxide can be reduced chemically by using reducing agents such as hydrazine or dimethlyhydrazine. However, these chemicals are highly poisonous and toxic, which will bring harmful effect to human beings and environment. Therefore great care is needed when handling these materials and it requires extra routes to remove the impurities introduced by the chemical reduction of graphene oxide such as C-N. To ease the synthesis of good quality and environment friendly graphene, green reduction of graphene oxide becomes an alternative way. In this study, phytoextracts from banana peels was used as the reducing agent due to its high phenolic contents and antioxidant activity. Graphite oxide was fabricated using graphite flakes before undergoing ultrasonication for exfoliation to form the graphene oxide. The graphene oxide was reduced by using phytoextracts from banana peels at room temperature and refluxed temperature. Optimization of phytoextracts reduction was carried out by varying the phytoextracts concentration, reduction time and reduction temperature. The graphene oxide and graphene were characterized by using Ultraviolet-visible spectrophotometer (UV-Vis), Fourier Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and cyclic voltammetry analysis (CV) for the fabrication of glucose sensor. UV-Vis result for graphene oxide shows an absorption peak at range of 230 nm and red-shifted to 270 nm for phytoextract reduced graphene oxide (PRGO). Graphite oxide (GO) in FTIR study shows intense band at 1623 cm-1 (C=O stretching), 1053 cm-1 (for C-O stretching), and a broad band around 3332 cm-1 for hydroxyl group. PRGO shows the a decrease in the intensity at 3332 cm-1, but does not remove the peak at 1052 cm-1 and 1623 cm-1. PRGO also exhibits a comparable solubility as conventional reduced graphene oxide and in the application of glucose sensor; PRGO was able to detect a glucose concentration of 0.1 mM by using glassy carbon electrode (GCE) at a scan rate of 50 mVs-1.
format	Undergraduates Project Papers
author	Jiah Chee, Soh
author_facet	Jiah Chee, Soh
author_sort	Jiah Chee, Soh
title	Green reduction of graphene oxide by using phtoextracts from banana peels
title_short	Green reduction of graphene oxide by using phtoextracts from banana peels
title_full	Green reduction of graphene oxide by using phtoextracts from banana peels
title_fullStr	Green reduction of graphene oxide by using phtoextracts from banana peels
title_full_unstemmed	Green reduction of graphene oxide by using phtoextracts from banana peels
title_sort	green reduction of graphene oxide by using phtoextracts from banana peels
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/11048/ http://umpir.ump.edu.my/id/eprint/11048/ http://umpir.ump.edu.my/id/eprint/11048/1/FKKSA%20-%20SOH%20JIAH%20CHEE%20%20%28CD8985%29.pdf http://umpir.ump.edu.my/id/eprint/11048/2/FKKSA%20-%20SOH%20JIAH%20CHEE%20%20%28CD8985%29%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/11048/3/FKKSA%20-%20SOH%20JIAH%20CHEE%20%20%28CD8985%29%20CHAP%203.pdf
first_indexed	2023-09-18T22:11:22Z
last_indexed	2023-09-18T22:11:22Z
_version_	1777415049978052608

Green reduction of graphene oxide by using phtoextracts from banana peels

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