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Phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate

Eutrophication and water pollution caused by a high concentration of phosphate are two concerning issues that affect water quality worldwide. A novel cellulose-based adsorbent, cellulose acetate/graphene oxide/sodium dodecyl sulphate (CA/GO/SDS), was developed for water treatment. A 13% CA solution...

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Main Authors: Amin, N. A. A. M., Mokhter, M. A., Salamun, N., Mahmood, W. M. A. W.
Format: Article
Language:English
Published: MDPI AG 2021
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/94704/1/NurAinAtiqah2021_PhosphateAdsorptionfromAqueous.pdf
http://eprints.utm.my/id/eprint/94704/
http://dx.doi.org/10.3390/membranes11070546
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spelling my.utm.947042022-03-31T15:13:43Z http://eprints.utm.my/id/eprint/94704/ Phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate Amin, N. A. A. M. Mokhter, M. A. Salamun, N. Mahmood, W. M. A. W. QD Chemistry Eutrophication and water pollution caused by a high concentration of phosphate are two concerning issues that affect water quality worldwide. A novel cellulose-based adsorbent, cellulose acetate/graphene oxide/sodium dodecyl sulphate (CA/GO/SDS), was developed for water treatment. A 13% CA solution in a mixture of acetone:dimethylacetamide (2:1) has been electrospun and complexed with a GO/SDS solution. The field emission scanning electron microscope (FESEM) showed that the CA membrane was pure white, while the CA/GO/SDS membrane was not as white as CA and its colour became darker as the GO content increased. The process of phosphate removal from the solutions was found to be aided by the hydroxyl groups on the surface of the CA modified with GO/SDS, as shown by infrared spectroscopy. An optimization condition for the adsorption process was studied by varying pH, immersion time, and the mass of the membrane. The experimental results from phosphate adsorption showed that CA/GO/SDS had an excellent pH adaptability, with an optimum pH of 7, and maximum removal (>87.0%) was observed with a membrane mass of 0.05 g at an initial concentration of 25 mg L−1 . A kinetic study revealed that 180 min of contact time could adsorb about 87.2% of phosphate onto the CA/GO/SDS membrane. A typical pseudo-second-order kinetic model successfully portrayed the kinetic sorption of phosphate, and the adsorption equilibrium data were well-correlated with the Langmuir adsorption model, suggesting the monolayer coverage of adsorbed molecules. MDPI AG 2021 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/94704/1/NurAinAtiqah2021_PhosphateAdsorptionfromAqueous.pdf Amin, N. A. A. M. and Mokhter, M. A. and Salamun, N. and Mahmood, W. M. A. W. (2021) Phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate. Membranes, 11 (7). ISSN 2077-0375 http://dx.doi.org/10.3390/membranes11070546 DOI: 10.3390/membranes11070546
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/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Amin, N. A. A. M.
Mokhter, M. A.
Salamun, N.
Mahmood, W. M. A. W.
Phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate
description Eutrophication and water pollution caused by a high concentration of phosphate are two concerning issues that affect water quality worldwide. A novel cellulose-based adsorbent, cellulose acetate/graphene oxide/sodium dodecyl sulphate (CA/GO/SDS), was developed for water treatment. A 13% CA solution in a mixture of acetone:dimethylacetamide (2:1) has been electrospun and complexed with a GO/SDS solution. The field emission scanning electron microscope (FESEM) showed that the CA membrane was pure white, while the CA/GO/SDS membrane was not as white as CA and its colour became darker as the GO content increased. The process of phosphate removal from the solutions was found to be aided by the hydroxyl groups on the surface of the CA modified with GO/SDS, as shown by infrared spectroscopy. An optimization condition for the adsorption process was studied by varying pH, immersion time, and the mass of the membrane. The experimental results from phosphate adsorption showed that CA/GO/SDS had an excellent pH adaptability, with an optimum pH of 7, and maximum removal (>87.0%) was observed with a membrane mass of 0.05 g at an initial concentration of 25 mg L−1 . A kinetic study revealed that 180 min of contact time could adsorb about 87.2% of phosphate onto the CA/GO/SDS membrane. A typical pseudo-second-order kinetic model successfully portrayed the kinetic sorption of phosphate, and the adsorption equilibrium data were well-correlated with the Langmuir adsorption model, suggesting the monolayer coverage of adsorbed molecules.
format Article
author Amin, N. A. A. M.
Mokhter, M. A.
Salamun, N.
Mahmood, W. M. A. W.
author_facet Amin, N. A. A. M.
Mokhter, M. A.
Salamun, N.
Mahmood, W. M. A. W.
author_sort Amin, N. A. A. M.
title Phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate
title_short Phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate
title_full Phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate
title_fullStr Phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate
title_full_unstemmed Phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate
title_sort phosphate adsorption from aqueous solution using electrospun cellulose acetate nanofiber membrane modified with graphene oxide/sodium dodecyl sulphate
publisher MDPI AG
publishDate 2021
url http://eprints.utm.my/id/eprint/94704/1/NurAinAtiqah2021_PhosphateAdsorptionfromAqueous.pdf
http://eprints.utm.my/id/eprint/94704/
http://dx.doi.org/10.3390/membranes11070546
_version_ 1729703209748922368
score 13.211869

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