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Synthesis of CTAB intercalated graphene and its application for the adsorption of AR265 and AO7 dyes from water

Environmental applications of graphene (GN) are limited by the occurrence of aggregation. Herein, graphene oxide (GO) was synthesized, reduced to GN by ascorbic acid, and intercalated with cetyltrimethylammonium bromide (CTAB). GN-CTAB was characterized by Boehm's titration, N2 adsorption/desor...

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Main Authors: Yusuf, Mohammed, Ali Khan, Moonis, Otero, Marta, Abdullah, E. C., Hosomi, Masaaki, Terada, Akihiko, Riya, Shohei
Format: Article
Published: Elsevier 2017
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/80192/
http://dx.doi.org/10.1016/j.jcis.2017.01.015
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spelling my.utm.801922019-03-05T01:51:29Z http://eprints.utm.my/id/eprint/80192/ Synthesis of CTAB intercalated graphene and its application for the adsorption of AR265 and AO7 dyes from water Yusuf, Mohammed Ali Khan, Moonis Otero, Marta Abdullah, E. C. Hosomi, Masaaki Terada, Akihiko Riya, Shohei T Technology (General) Environmental applications of graphene (GN) are limited by the occurrence of aggregation. Herein, graphene oxide (GO) was synthesized, reduced to GN by ascorbic acid, and intercalated with cetyltrimethylammonium bromide (CTAB). GN-CTAB was characterized by Boehm's titration, N2 adsorption/desorption, Fourier transform infrared spectroscopy, Raman spectroscopy, Fluorescence spectrophotometry, X-ray diffraction and Scanning electron microscopy. Then, GN-CTAB was used for the adsorptive removal of acid red 265 (AR265) and acid orange 7 (AO7) dyes from water both under batch and column operation. Under batch operation, the effect of pH, adsorbent dosage, initial dye concentration, contact time and temperature on dyes adsorption were assessed. Adsorption isotherms, kinetics, and thermodynamics were analyzed systematically. Regarding the fixed bed operation, the effect of both the bed height and flow rate were studied and experimental results fitted to the Thomas and BDST models. Then, the bed loss capacity along five adsorption-regeneration cycles was determined in order to further approach the practical application of GN-CTAB for wastewater treatment, namely for the removal of dyes. Elsevier 2017 Article PeerReviewed Yusuf, Mohammed and Ali Khan, Moonis and Otero, Marta and Abdullah, E. C. and Hosomi, Masaaki and Terada, Akihiko and Riya, Shohei (2017) Synthesis of CTAB intercalated graphene and its application for the adsorption of AR265 and AO7 dyes from water. Journal of Colloid and Interface Science, 493 . pp. 51-61. ISSN 0021-9797 http://dx.doi.org/10.1016/j.jcis.2017.01.015 DOI:10.1016/j.jcis.2017.01.015
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic T Technology (General)
spellingShingle T Technology (General)
Yusuf, Mohammed
Ali Khan, Moonis
Otero, Marta
Abdullah, E. C.
Hosomi, Masaaki
Terada, Akihiko
Riya, Shohei
Synthesis of CTAB intercalated graphene and its application for the adsorption of AR265 and AO7 dyes from water
description Environmental applications of graphene (GN) are limited by the occurrence of aggregation. Herein, graphene oxide (GO) was synthesized, reduced to GN by ascorbic acid, and intercalated with cetyltrimethylammonium bromide (CTAB). GN-CTAB was characterized by Boehm's titration, N2 adsorption/desorption, Fourier transform infrared spectroscopy, Raman spectroscopy, Fluorescence spectrophotometry, X-ray diffraction and Scanning electron microscopy. Then, GN-CTAB was used for the adsorptive removal of acid red 265 (AR265) and acid orange 7 (AO7) dyes from water both under batch and column operation. Under batch operation, the effect of pH, adsorbent dosage, initial dye concentration, contact time and temperature on dyes adsorption were assessed. Adsorption isotherms, kinetics, and thermodynamics were analyzed systematically. Regarding the fixed bed operation, the effect of both the bed height and flow rate were studied and experimental results fitted to the Thomas and BDST models. Then, the bed loss capacity along five adsorption-regeneration cycles was determined in order to further approach the practical application of GN-CTAB for wastewater treatment, namely for the removal of dyes.
format Article
author Yusuf, Mohammed
Ali Khan, Moonis
Otero, Marta
Abdullah, E. C.
Hosomi, Masaaki
Terada, Akihiko
Riya, Shohei
author_facet Yusuf, Mohammed
Ali Khan, Moonis
Otero, Marta
Abdullah, E. C.
Hosomi, Masaaki
Terada, Akihiko
Riya, Shohei
author_sort Yusuf, Mohammed
title Synthesis of CTAB intercalated graphene and its application for the adsorption of AR265 and AO7 dyes from water
title_short Synthesis of CTAB intercalated graphene and its application for the adsorption of AR265 and AO7 dyes from water
title_full Synthesis of CTAB intercalated graphene and its application for the adsorption of AR265 and AO7 dyes from water
title_fullStr Synthesis of CTAB intercalated graphene and its application for the adsorption of AR265 and AO7 dyes from water
title_full_unstemmed Synthesis of CTAB intercalated graphene and its application for the adsorption of AR265 and AO7 dyes from water
title_sort synthesis of ctab intercalated graphene and its application for the adsorption of ar265 and ao7 dyes from water
publisher Elsevier
publishDate 2017
url http://eprints.utm.my/id/eprint/80192/
http://dx.doi.org/10.1016/j.jcis.2017.01.015
_version_ 1643658353445961728
score 13.211869

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