Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions
<p dir="ltr">In this study, an innovative magnetic demulsifier (MD) was prepared by grafting a silica layer onto the surface of the Fe<sub>3</sub>O<sub>4</sub> magnetic nanoparticles (MNPs) using the modified Stober process. The MD was characterized using vari...
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2021
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| _version_ | 1864513559449305088 |
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| author | Wamda Faisal Elmobarak (17058024) |
| author2 | Fares Almomani (12585685) |
| author2_role | author |
| author_facet | Wamda Faisal Elmobarak (17058024) Fares Almomani (12585685) |
| author_role | author |
| dc.creator.none.fl_str_mv | Wamda Faisal Elmobarak (17058024) Fares Almomani (12585685) |
| dc.date.none.fl_str_mv | 2021-02-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.chemosphere.2020.129054 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Application_of_Fe_sub_3_sub_O_sub_4_sub_magnetite_nanoparticles_grafted_in_silica_SiO_sub_2_sub_for_oil_recovery_from_oil_in_water_emulsions/24210636 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Chemical engineering Environmental engineering Fluid mechanics and thermal engineering Materials engineering Nanotechnology Oil in water (O/W) emulsion Fe3O4eSiO2 nanoparticles Oil removal Demulsification efficiency |
| dc.title.none.fl_str_mv | Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">In this study, an innovative magnetic demulsifier (MD) was prepared by grafting a silica layer onto the surface of the Fe<sub>3</sub>O<sub>4</sub> magnetic nanoparticles (MNPs) using the modified Stober process. The MD was characterized using various analytical techniques (XRD, FTIR, TGA, TEM, VSM, etc.) and employed to recover oil from O/W emulsion, which were then regenerated and recycled several times. The effects of magnetic demulsifier dosage (MD<sub>dose</sub>), the concentration of oil (C<sub>oil</sub>), pH, the concentration of the surfactant (C<sub>sur</sub>), and separation time (t<sub>sep</sub>) on the demulsification efficiency (%<sub>hdem</sub>), and the percentage of oil recovered (%R<sub>oil</sub>) were evaluated. An excellent %<sub>hdem</sub> 90% was achieved C<sub>oil</sub> in the range 50 e2000 mg/L. Using an MD<sub>dose</sub> as low as 10 mg/L attained a %<sub>hdem</sub> in the range of 93% - 4.3% for O/W mixtures with C<sub>oil</sub> < 2000 mg/L, which slightly decreased to ~90% for higher concentrations. The reported %R<sub>oil </sub>(p-value <0.05) was >90 ± 0.1 for tests carried out with pH 7 and C<sub>sur </sub>0.1 g/L and declined at higher pH and Csur to % 86.5 due to the increase in emulsion stability. The developed MD exhibited high recyclability at an effective and stable %R<sub>oil</sub> and %<sub>hdem</sub> of ~90% and 86.4% after 9 cycles, respectively. Demulsification process best fits the combined Langmuir-Freundlich (L-F) isotherm with highest adsorption capacity (Q<sub>max</sub>) of 186.0 ± 5 mg<sub>oil</sub>/g<sub>MD</sub> compared to 86.0 ± 5 mg<sub>oil</sub>/g<sub>MD</sub> for Fe<sub>3</sub>O<sub>4</sub>, which is 1.1 folds greater than Q<sub>max</sub> reported in the literature for other demulsifiers.</p><h2>Other Information</h2><p dir="ltr">Published in: Chemosphere<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.chemosphere.2020.129054" target="_blank">https://dx.doi.org/10.1016/j.chemosphere.2020.129054</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_4c22bf04a8aa4f0cc0dd73dd1808dbb8 |
| identifier_str_mv | 10.1016/j.chemosphere.2020.129054 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24210636 |
| publishDate | 2021 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsionsWamda Faisal Elmobarak (17058024)Fares Almomani (12585685)EngineeringChemical engineeringEnvironmental engineeringFluid mechanics and thermal engineeringMaterials engineeringNanotechnologyOil in water (O/W) emulsionFe3O4eSiO2 nanoparticlesOil removalDemulsification efficiency<p dir="ltr">In this study, an innovative magnetic demulsifier (MD) was prepared by grafting a silica layer onto the surface of the Fe<sub>3</sub>O<sub>4</sub> magnetic nanoparticles (MNPs) using the modified Stober process. The MD was characterized using various analytical techniques (XRD, FTIR, TGA, TEM, VSM, etc.) and employed to recover oil from O/W emulsion, which were then regenerated and recycled several times. The effects of magnetic demulsifier dosage (MD<sub>dose</sub>), the concentration of oil (C<sub>oil</sub>), pH, the concentration of the surfactant (C<sub>sur</sub>), and separation time (t<sub>sep</sub>) on the demulsification efficiency (%<sub>hdem</sub>), and the percentage of oil recovered (%R<sub>oil</sub>) were evaluated. An excellent %<sub>hdem</sub> 90% was achieved C<sub>oil</sub> in the range 50 e2000 mg/L. Using an MD<sub>dose</sub> as low as 10 mg/L attained a %<sub>hdem</sub> in the range of 93% - 4.3% for O/W mixtures with C<sub>oil</sub> < 2000 mg/L, which slightly decreased to ~90% for higher concentrations. The reported %R<sub>oil </sub>(p-value <0.05) was >90 ± 0.1 for tests carried out with pH 7 and C<sub>sur </sub>0.1 g/L and declined at higher pH and Csur to % 86.5 due to the increase in emulsion stability. The developed MD exhibited high recyclability at an effective and stable %R<sub>oil</sub> and %<sub>hdem</sub> of ~90% and 86.4% after 9 cycles, respectively. Demulsification process best fits the combined Langmuir-Freundlich (L-F) isotherm with highest adsorption capacity (Q<sub>max</sub>) of 186.0 ± 5 mg<sub>oil</sub>/g<sub>MD</sub> compared to 86.0 ± 5 mg<sub>oil</sub>/g<sub>MD</sub> for Fe<sub>3</sub>O<sub>4</sub>, which is 1.1 folds greater than Q<sub>max</sub> reported in the literature for other demulsifiers.</p><h2>Other Information</h2><p dir="ltr">Published in: Chemosphere<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.chemosphere.2020.129054" target="_blank">https://dx.doi.org/10.1016/j.chemosphere.2020.129054</a></p>2021-02-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.chemosphere.2020.129054https://figshare.com/articles/journal_contribution/Application_of_Fe_sub_3_sub_O_sub_4_sub_magnetite_nanoparticles_grafted_in_silica_SiO_sub_2_sub_for_oil_recovery_from_oil_in_water_emulsions/24210636CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/242106362021-02-01T00:00:00Z |
| spellingShingle | Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions Wamda Faisal Elmobarak (17058024) Engineering Chemical engineering Environmental engineering Fluid mechanics and thermal engineering Materials engineering Nanotechnology Oil in water (O/W) emulsion Fe3O4eSiO2 nanoparticles Oil removal Demulsification efficiency |
| status_str | publishedVersion |
| title | Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions |
| title_full | Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions |
| title_fullStr | Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions |
| title_full_unstemmed | Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions |
| title_short | Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions |
| title_sort | Application of Fe<sub>3</sub>O<sub>4</sub> magnetite nanoparticles grafted in silica (SiO<sub>2</sub>) for oil recovery from oil in water emulsions |
| topic | Engineering Chemical engineering Environmental engineering Fluid mechanics and thermal engineering Materials engineering Nanotechnology Oil in water (O/W) emulsion Fe3O4eSiO2 nanoparticles Oil removal Demulsification efficiency |