Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron species
<p dir="ltr">Herein, <u>carbon dots</u> (CDs) obtained from biochar of olive tree pruning residues (BC-OTPR) were synthesized at varying <u>pyrolysis</u> temperatures (500, 600, and 700 °C). The spectroscopic features of the CDs were further explored in the co...
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| مؤلفون آخرون: | , , , , , , |
| منشور في: |
2025
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| _version_ | 1864513533600858112 |
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| author | Ahmed S. El-Shafie (14151696) |
| author2 | Ahmed I. Osman (4513771) Nessreen Al-Hashimi (18623560) Khalid Al-Saad (5768084) Mohammad A. Al-Ghouti (8882054) Yassmin Ibrahim (17821160) Mohamed F. Shibl (1975762) Marwa El-Azazy (14152794) |
| author2_role | author author author author author author author |
| author_facet | Ahmed S. El-Shafie (14151696) Ahmed I. Osman (4513771) Nessreen Al-Hashimi (18623560) Khalid Al-Saad (5768084) Mohammad A. Al-Ghouti (8882054) Yassmin Ibrahim (17821160) Mohamed F. Shibl (1975762) Marwa El-Azazy (14152794) |
| author_role | author |
| dc.creator.none.fl_str_mv | Ahmed S. El-Shafie (14151696) Ahmed I. Osman (4513771) Nessreen Al-Hashimi (18623560) Khalid Al-Saad (5768084) Mohammad A. Al-Ghouti (8882054) Yassmin Ibrahim (17821160) Mohamed F. Shibl (1975762) Marwa El-Azazy (14152794) |
| dc.date.none.fl_str_mv | 2025-06-10T12:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.ijbiomac.2025.144628 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Valorization_of_olive_pruning_lignocellulosic_residues_into_carbon_dots_A_sustainable_approach_for_discrimination_of_Iron_species/30455651 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Materials engineering Nanotechnology Environmental sciences Environmental biotechnology Carbon dots Lignocellulosic olive tree pruning residues Spectroscopic characterization Iron speciation Food supplements and water sample analysis |
| dc.title.none.fl_str_mv | Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron species |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Herein, <u>carbon dots</u> (CDs) obtained from biochar of olive tree pruning residues (BC-OTPR) were synthesized at varying <u>pyrolysis</u> temperatures (500, 600, and 700 °C). The spectroscopic features of the CDs were further explored in the context of <u>metal ion </u>detection, specifically focusing on the discrimination of iron species. Significant <u>fluorescence quenching</u> upon interaction with iron (III), compared to iron (II) and other metal ions, was observed, indicating their potential as sensitive probes. In the presence of <u>hydrogen peroxide</u> and via the <u>Fenton</u> reaction, iron (II) was quantitatively oxidized into iron (III) – the determinable form, allowing for iron speciation. Synthesized CDs were analyzed using UV–Vis spectroscopy. <u>Transmission Electron Microscopy</u> (TEM) images revealed the uniform spherical morphology. Using the FT-IR analysis, transformation of <u>hemicellulose</u> and lignin present in the BC-OTPR into CDs with unique functionalities was corroborated. The CDs exhibited excitation-dependent fluorescence behavior, showcasing their potential for spectroscopic applications. Regression modeling was employed to investigate variables influencing iron detection. Notably, the CDs displayed linear behavior spanning over a range of 1.186 μM – 7.984 μM with a low limit of detection (LOD) of 0.5 μM of iron (III). Validation of precision and accuracy confirmed CDs' efficacy for analyzing food supplements and water samples.</p><h2>Other Information</h2><p dir="ltr">Published in: International Journal of Biological Macromolecules<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.ijbiomac.2025.144628" target="_blank">https://dx.doi.org/10.1016/j.ijbiomac.2025.144628</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_f098efd644ea7e0517b033d3c191f208 |
| identifier_str_mv | 10.1016/j.ijbiomac.2025.144628 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/30455651 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron speciesAhmed S. El-Shafie (14151696)Ahmed I. Osman (4513771)Nessreen Al-Hashimi (18623560)Khalid Al-Saad (5768084)Mohammad A. Al-Ghouti (8882054)Yassmin Ibrahim (17821160)Mohamed F. Shibl (1975762)Marwa El-Azazy (14152794)EngineeringMaterials engineeringNanotechnologyEnvironmental sciencesEnvironmental biotechnologyCarbon dotsLignocellulosic olive tree pruning residuesSpectroscopic characterizationIron speciationFood supplements and water sample analysis<p dir="ltr">Herein, <u>carbon dots</u> (CDs) obtained from biochar of olive tree pruning residues (BC-OTPR) were synthesized at varying <u>pyrolysis</u> temperatures (500, 600, and 700 °C). The spectroscopic features of the CDs were further explored in the context of <u>metal ion </u>detection, specifically focusing on the discrimination of iron species. Significant <u>fluorescence quenching</u> upon interaction with iron (III), compared to iron (II) and other metal ions, was observed, indicating their potential as sensitive probes. In the presence of <u>hydrogen peroxide</u> and via the <u>Fenton</u> reaction, iron (II) was quantitatively oxidized into iron (III) – the determinable form, allowing for iron speciation. Synthesized CDs were analyzed using UV–Vis spectroscopy. <u>Transmission Electron Microscopy</u> (TEM) images revealed the uniform spherical morphology. Using the FT-IR analysis, transformation of <u>hemicellulose</u> and lignin present in the BC-OTPR into CDs with unique functionalities was corroborated. The CDs exhibited excitation-dependent fluorescence behavior, showcasing their potential for spectroscopic applications. Regression modeling was employed to investigate variables influencing iron detection. Notably, the CDs displayed linear behavior spanning over a range of 1.186 μM – 7.984 μM with a low limit of detection (LOD) of 0.5 μM of iron (III). Validation of precision and accuracy confirmed CDs' efficacy for analyzing food supplements and water samples.</p><h2>Other Information</h2><p dir="ltr">Published in: International Journal of Biological Macromolecules<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.ijbiomac.2025.144628" target="_blank">https://dx.doi.org/10.1016/j.ijbiomac.2025.144628</a></p>2025-06-10T12:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.ijbiomac.2025.144628https://figshare.com/articles/journal_contribution/Valorization_of_olive_pruning_lignocellulosic_residues_into_carbon_dots_A_sustainable_approach_for_discrimination_of_Iron_species/30455651CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/304556512025-06-10T12:00:00Z |
| spellingShingle | Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron species Ahmed S. El-Shafie (14151696) Engineering Materials engineering Nanotechnology Environmental sciences Environmental biotechnology Carbon dots Lignocellulosic olive tree pruning residues Spectroscopic characterization Iron speciation Food supplements and water sample analysis |
| status_str | publishedVersion |
| title | Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron species |
| title_full | Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron species |
| title_fullStr | Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron species |
| title_full_unstemmed | Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron species |
| title_short | Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron species |
| title_sort | Valorization of olive pruning lignocellulosic residues into carbon dots: A sustainable approach for discrimination of Iron species |
| topic | Engineering Materials engineering Nanotechnology Environmental sciences Environmental biotechnology Carbon dots Lignocellulosic olive tree pruning residues Spectroscopic characterization Iron speciation Food supplements and water sample analysis |