Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate
Multi walled carbon nanotubes (MWCNTs) modified with sodium lauryl sulfate (SLS) were synthe-sized, characterized and successfully used for the removal of Pb2+ from aqueous solutions. Adsorp-tion results revealed that this surface modification increased adsorption capacity from 3.84 to 141 mg/g. Ads...
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2017
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| Online Access: | http://hdl.handle.net/11073/16258 |
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| _version_ | 1864513441644937216 |
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| author | Suliman, Malaz |
| author2 | Ibrahim, Taleb Jumean, Fawwaz Khamis, Mustafa Sabri, Muhammad Ashraf |
| author2_role | author author author author |
| author_facet | Suliman, Malaz Ibrahim, Taleb Jumean, Fawwaz Khamis, Mustafa Sabri, Muhammad Ashraf |
| author_role | author |
| dc.creator.none.fl_str_mv | Suliman, Malaz Ibrahim, Taleb Jumean, Fawwaz Khamis, Mustafa Sabri, Muhammad Ashraf |
| dc.date.none.fl_str_mv | 2017-12 2018-10-28T08:06:53Z 2018-10-28T08:06:53Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Suliman, Malaz, Taleb Ibrahim, Fawwaz Jumean, Mustafa Khamis, and Muhammad Sabri. "Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate." Desalination and Water Treatment 100 (2017): 55-66. 1944-3986 http://hdl.handle.net/11073/16258 10.5004/dwt.2017.21829 |
| dc.language.none.fl_str_mv | en_US |
| dc.publisher.none.fl_str_mv | Desalination Publications |
| dc.relation.none.fl_str_mv | Desalination and Water Treatment https://doi.org/10.5004/dwt.2017.21829 |
| dc.subject.none.fl_str_mv | Multi walled carbon nanotubes Sodium lauryl sulfate Lead Adsorption |
| dc.title.none.fl_str_mv | Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Multi walled carbon nanotubes (MWCNTs) modified with sodium lauryl sulfate (SLS) were synthe-sized, characterized and successfully used for the removal of Pb2+ from aqueous solutions. Adsorp-tion results revealed that this surface modification increased adsorption capacity from 3.84 to 141 mg/g. Adsorption on raw-MWCNTs followed the Langmuir isotherm with qm = 3.84 mg/g and KL = 0.29 L/mg, whereas adsorption on SLS-MWCNTs followed the Freundlich isotherm with n = 2.50 and KF = 15.40 mg 0.6·L0.4/g. Adsorption kinetics on raw and modified MWCNTs followed a pseudo second order law with rate constants 0.11 and 0.06 g/mg·min, respectively. Thermodynamic studies showed that Pb2+ was physisorbed on both adsorbents, with apparent Gibbs free energy, ∆G °,values of –0.45 and –9.21 kJ/mol at 25°C, respectively. Magnetite derivatives of SLS-MWCNTs were synthesized and used for Pb2+ removal. Batch adsorption studies on the magnetite and non-magnetite SLS-MWCNTs gave similar results. The enhanced density of the magnetite pellets of SLS-MWCNTs allowed for their use in a packed bed column. Column operation modeling results showed that the modified dose response model most adequately describes the column data with parameter values qmdr = 28.4 mg/g and a’ = 3.47 mg–1. |
| format | article |
| id | aus_21fc8a1730945200bdc4d37753402626 |
| identifier_str_mv | Suliman, Malaz, Taleb Ibrahim, Fawwaz Jumean, Mustafa Khamis, and Muhammad Sabri. "Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate." Desalination and Water Treatment 100 (2017): 55-66. 1944-3986 10.5004/dwt.2017.21829 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/16258 |
| publishDate | 2017 |
| publisher.none.fl_str_mv | Desalination Publications |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfateSuliman, MalazIbrahim, TalebJumean, FawwazKhamis, MustafaSabri, Muhammad AshrafMulti walled carbon nanotubesSodium lauryl sulfateLeadAdsorptionMulti walled carbon nanotubes (MWCNTs) modified with sodium lauryl sulfate (SLS) were synthe-sized, characterized and successfully used for the removal of Pb2+ from aqueous solutions. Adsorp-tion results revealed that this surface modification increased adsorption capacity from 3.84 to 141 mg/g. Adsorption on raw-MWCNTs followed the Langmuir isotherm with qm = 3.84 mg/g and KL = 0.29 L/mg, whereas adsorption on SLS-MWCNTs followed the Freundlich isotherm with n = 2.50 and KF = 15.40 mg 0.6·L0.4/g. Adsorption kinetics on raw and modified MWCNTs followed a pseudo second order law with rate constants 0.11 and 0.06 g/mg·min, respectively. Thermodynamic studies showed that Pb2+ was physisorbed on both adsorbents, with apparent Gibbs free energy, ∆G °,values of –0.45 and –9.21 kJ/mol at 25°C, respectively. Magnetite derivatives of SLS-MWCNTs were synthesized and used for Pb2+ removal. Batch adsorption studies on the magnetite and non-magnetite SLS-MWCNTs gave similar results. The enhanced density of the magnetite pellets of SLS-MWCNTs allowed for their use in a packed bed column. Column operation modeling results showed that the modified dose response model most adequately describes the column data with parameter values qmdr = 28.4 mg/g and a’ = 3.47 mg–1.Desalination Publications2018-10-28T08:06:53Z2018-10-28T08:06:53Z2017-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSuliman, Malaz, Taleb Ibrahim, Fawwaz Jumean, Mustafa Khamis, and Muhammad Sabri. "Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate." Desalination and Water Treatment 100 (2017): 55-66.1944-3986http://hdl.handle.net/11073/1625810.5004/dwt.2017.21829en_USDesalination and Water Treatmenthttps://doi.org/10.5004/dwt.2017.21829oai:repository.aus.edu:11073/162582024-08-22T12:16:50Z |
| spellingShingle | Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate Suliman, Malaz Multi walled carbon nanotubes Sodium lauryl sulfate Lead Adsorption |
| status_str | publishedVersion |
| title | Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate |
| title_full | Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate |
| title_fullStr | Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate |
| title_full_unstemmed | Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate |
| title_short | Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate |
| title_sort | Removal of lead ions from wastewater using multi walled carbon nanotubes modified with sodium lauryl sulfate |
| topic | Multi walled carbon nanotubes Sodium lauryl sulfate Lead Adsorption |
| url | http://hdl.handle.net/11073/16258 |