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Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents

Sorption capacities for cadmium, Cd(II) on indigenously prepared, steam activated, untreated, surfactant-modified carbon powder, from husk and pods of Moringa oleifera were investigated. The optimized conditions for all the experimental runs were pH 8.0 ± 0.2, temperature 30 ± 0.5 °C, contact tim...

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Main Authors: M.A., Abdullah, M., Nadeem, M., Shabbir, S.S., Shah, G., McKay
Format: Citation Index Journal
Published: 2009
Subjects:
TP Chemical technology
Online Access:http://eprints.utp.edu.my/2861/1/Sorption-of-cadmium-from-aqueous-solution-by-surfactant-modified-carbon-adsorbents_2009_Chemical-Engineering-Journal.pdf
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spelling my.utp.eprints.28612017-03-20T01:56:58Z Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents M.A., Abdullah M., Nadeem M., Shabbir S.S., Shah G., McKay TP Chemical technology Sorption capacities for cadmium, Cd(II) on indigenously prepared, steam activated, untreated, surfactant-modified carbon powder, from husk and pods of Moringa oleifera were investigated. The optimized conditions for all the experimental runs were pH 8.0 ± 0.2, temperature 30 ± 0.5 °C, contact time 120 min, agitation speed 160 rpm, initial metal concentration 30 mg L<sup>-1</sup> and adsorbent dosage 1.0 g L<sup>-1</sup>, respectively. Maximum Cd(II) removal, 98.0% was observed when cetyltrimethyl ammonium bromide (CTAB), cationic surfactant-treated carbon was used as an adsorbent. The Cd(II) removal percentages for sodium dodecyl sulphate (SDS), anionic surfactant, Triton X-100 (non-ionic surfactant) treated and untreated powder activated carbons were found to be 95.60, 81.50 and 73.36%, respectively. SEM images and BET surface area, porosity and pore volume measurements have revealed that surfactant-treated carbons have superior porosity and enhanced surface area than untreated carbons. The sorption data were correlated better with the Langmuir adsorption isotherm than Freundlich isotherm with R<sup>2</sup> values ranging from 0.91 to 0.98. © 2008 Elsevier B.V. All rights reserved. 2009 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/2861/1/Sorption-of-cadmium-from-aqueous-solution-by-surfactant-modified-carbon-adsorbents_2009_Chemical-Engineering-Journal.pdf http://www.scopus.com/inward/record.url?eid=2-s2.0-61849132327&partnerID=40&md5=0615f4d31a208da6b03e071143c1c66a M.A., Abdullah and M., Nadeem and M., Shabbir and S.S., Shah and G., McKay (2009) Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents. [Citation Index Journal] http://eprints.utp.edu.my/2861/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
M.A., Abdullah
M., Nadeem
M., Shabbir
S.S., Shah
G., McKay
Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents
description Sorption capacities for cadmium, Cd(II) on indigenously prepared, steam activated, untreated, surfactant-modified carbon powder, from husk and pods of Moringa oleifera were investigated. The optimized conditions for all the experimental runs were pH 8.0 ± 0.2, temperature 30 ± 0.5 °C, contact time 120 min, agitation speed 160 rpm, initial metal concentration 30 mg L<sup>-1</sup> and adsorbent dosage 1.0 g L<sup>-1</sup>, respectively. Maximum Cd(II) removal, 98.0% was observed when cetyltrimethyl ammonium bromide (CTAB), cationic surfactant-treated carbon was used as an adsorbent. The Cd(II) removal percentages for sodium dodecyl sulphate (SDS), anionic surfactant, Triton X-100 (non-ionic surfactant) treated and untreated powder activated carbons were found to be 95.60, 81.50 and 73.36%, respectively. SEM images and BET surface area, porosity and pore volume measurements have revealed that surfactant-treated carbons have superior porosity and enhanced surface area than untreated carbons. The sorption data were correlated better with the Langmuir adsorption isotherm than Freundlich isotherm with R<sup>2</sup> values ranging from 0.91 to 0.98. © 2008 Elsevier B.V. All rights reserved.
format Citation Index Journal
author M.A., Abdullah
M., Nadeem
M., Shabbir
S.S., Shah
G., McKay
author_facet M.A., Abdullah
M., Nadeem
M., Shabbir
S.S., Shah
G., McKay
author_sort M.A., Abdullah
title Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents
title_short Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents
title_full Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents
title_fullStr Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents
title_full_unstemmed Sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents
title_sort sorption of cadmium from aqueous solution by surfactant-modified carbon adsorbents
publishDate 2009
url http://eprints.utp.edu.my/2861/1/Sorption-of-cadmium-from-aqueous-solution-by-surfactant-modified-carbon-adsorbents_2009_Chemical-Engineering-Journal.pdf
http://www.scopus.com/inward/record.url?eid=2-s2.0-61849132327&partnerID=40&md5=0615f4d31a208da6b03e071143c1c66a
http://eprints.utp.edu.my/2861/
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score 13.211869

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