Methylene blue adsorption on graphene oxide

In this study, graphene oxide (GO), produced using the simple Hummer’s method, was used as adsorbent to remove methylene blue (MB) from aqueous solution. Characterizations using transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy were carried out on the GO befor...

Full description

Bibliographic Details
Main Authors:	Chin, Hua Chia, Nur Fazlinda Razali, Mohd Shaiful Sajab, Sarani Zakaria, Nay, Ming Huang, Hong, Ngee Lim
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2013
Online Access:	http://journalarticle.ukm.my/6286/ http://journalarticle.ukm.my/6286/ http://journalarticle.ukm.my/6286/1/15_Chin_Hua_Chia.pdf

id	ukm-6286
recordtype	eprints
spelling	ukm-62862016-12-14T06:40:44Z http://journalarticle.ukm.my/6286/ Methylene blue adsorption on graphene oxide Chin, Hua Chia Nur Fazlinda Razali, Mohd Shaiful Sajab, Sarani Zakaria, Nay, Ming Huang Hong, Ngee Lim In this study, graphene oxide (GO), produced using the simple Hummer’s method, was used as adsorbent to remove methylene blue (MB) from aqueous solution. Characterizations using transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy were carried out on the GO before the MB adsorption experiments. The adsorption kinetics and isotherm studies were conducted under different conditions (pH = 3-7 and MB concentration = 100-400 mg/L) to examine the adsorption efficiency of the GO towards MB in aqueous solution. The adsorption kinetics data were analyzed using different kinetic models to investigate the adsorption behavior of MB on GO. The obtained results showed that the maximum adsorption capacity of the GO towards MB can achieve up to ~700 mg/g for the adsorption at 300 mg/L MB. The adsorption kinetic data were found to fit pseudo-second order model as compared with pseudo-first-order model. The intraparticle diffusion model suggested that the adsorption process of GO towards MB was dominated by the external mass transfer of MB molecules to the surface of GO. Universiti Kebangsaan Malaysia 2013-06 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6286/1/15_Chin_Hua_Chia.pdf Chin, Hua Chia and Nur Fazlinda Razali, and Mohd Shaiful Sajab, and Sarani Zakaria, and Nay, Ming Huang and Hong, Ngee Lim (2013) Methylene blue adsorption on graphene oxide. Sains Malaysiana, 42 (6). pp. 819-826. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	In this study, graphene oxide (GO), produced using the simple Hummer’s method, was used as adsorbent to remove methylene blue (MB) from aqueous solution. Characterizations using transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy were carried out on the GO before the MB adsorption experiments. The adsorption kinetics and isotherm studies were conducted under different conditions (pH = 3-7 and MB concentration = 100-400 mg/L) to examine the adsorption efficiency of the GO towards MB in aqueous solution. The adsorption kinetics data were analyzed using different kinetic models to investigate the adsorption behavior of MB on GO. The obtained results showed that the maximum adsorption capacity of the GO towards MB can achieve up to ~700 mg/g for the adsorption at 300 mg/L MB. The adsorption kinetic data were found to fit pseudo-second order model as compared with pseudo-first-order model. The intraparticle diffusion model suggested that the adsorption process of GO towards MB was dominated by the external mass transfer of MB molecules to the surface of GO.
format	Article
author	Chin, Hua Chia Nur Fazlinda Razali, Mohd Shaiful Sajab, Sarani Zakaria, Nay, Ming Huang Hong, Ngee Lim
spellingShingle	Chin, Hua Chia Nur Fazlinda Razali, Mohd Shaiful Sajab, Sarani Zakaria, Nay, Ming Huang Hong, Ngee Lim Methylene blue adsorption on graphene oxide
author_facet	Chin, Hua Chia Nur Fazlinda Razali, Mohd Shaiful Sajab, Sarani Zakaria, Nay, Ming Huang Hong, Ngee Lim
author_sort	Chin, Hua Chia
title	Methylene blue adsorption on graphene oxide
title_short	Methylene blue adsorption on graphene oxide
title_full	Methylene blue adsorption on graphene oxide
title_fullStr	Methylene blue adsorption on graphene oxide
title_full_unstemmed	Methylene blue adsorption on graphene oxide
title_sort	methylene blue adsorption on graphene oxide
publisher	Universiti Kebangsaan Malaysia
publishDate	2013
url	http://journalarticle.ukm.my/6286/ http://journalarticle.ukm.my/6286/ http://journalarticle.ukm.my/6286/1/15_Chin_Hua_Chia.pdf
first_indexed	2023-09-18T19:46:28Z
last_indexed	2023-09-18T19:46:28Z
_version_	1777405932979879936

Methylene blue adsorption on graphene oxide

Similar Items