Groundnut shell carbon quantum dot magnetic iron oxide nanocomposite (GSCQD-FeFe2O4) for lead removal from water
A novel adsorbent, GSCQD-FeFe2O4, combining groundnut shell-derived carbon quantum dots with magnetic iron oxide nanoparticles, was synthesized for efficient removal of Pb(II) from water. Characterization studies confirmed successful synthesis, with UV analysis showing absorption at 210 nm and green...
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| Format: | Article |
| Language: | English |
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Engineering Society for Corrosion, Belgrade
2024-09-01
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| Series: | Zaštita Materijala |
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| Online Access: | https://www.zastita-materijala.org/index.php/home/article/view/1185 |
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| author | Fredrick Saah Garima Nagpal Flomo Gbawoquiyq Rashi Chaudhary |
| author_facet | Fredrick Saah Garima Nagpal Flomo Gbawoquiyq Rashi Chaudhary |
| author_sort | Fredrick Saah |
| collection | DOAJ |
| description | A novel adsorbent, GSCQD-FeFe2O4, combining groundnut shell-derived carbon quantum dots with magnetic iron oxide nanoparticles, was synthesized for efficient removal of Pb(II) from water. Characterization studies confirmed successful synthesis, with UV analysis showing absorption at 210 nm and green luminescence indicating carbon quantum dots. FT-IR identified characteristic functional groups, while XRD confirmed well-ordered structures. FE-SEM revealed clustered carbon nanoparticles with magnetic iron oxide, and TEM showed small-sized carbon dots suitable for adsorption. Batch adsorption studies revealed optimal conditions for Pb(II) removal, including a pH range of 5-6, temperature of 20°C, contact time of 20 minutes, and adsorbent dose of 0.2 g. Isotherm studies indicated that both Langmuir and Freundlich models provided a good fit, with a calculated adsorption capacity of 37.8 mg/g. Thermodynamic analysis suggested spontaneous, exothermic adsorption with increased disorder. GSCQD-FeFe2O4 displayed excellent potential for Pb(II) removal, but further research on reusability and stability in industrial settings is needed for broader applicability. |
| format | Article |
| id | doaj-art-ce29307c7e8f45f581fbea27c27c2aed |
| institution | OA Journals |
| issn | 0351-9465 2466-2585 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Engineering Society for Corrosion, Belgrade |
| record_format | Article |
| series | Zaštita Materijala |
| spelling | doaj-art-ce29307c7e8f45f581fbea27c27c2aed2025-08-20T02:20:01ZengEngineering Society for Corrosion, BelgradeZaštita Materijala0351-94652466-25852024-09-0165344045110.62638/ZasMat11851184Groundnut shell carbon quantum dot magnetic iron oxide nanocomposite (GSCQD-FeFe2O4) for lead removal from waterFredrick Saah0https://orcid.org/0009-0002-4471-4198Garima Nagpal1https://orcid.org/0000-0002-5182-8233Flomo Gbawoquiyq2Rashi Chaudhary3Sharda School of Basic Sciences & Research, Department of Environmental Sciences, Sharda University, Greater Noida, Uttar Pradesh, IndiaSharda School of Basic Sciences & Research, Department of Environmental Sciences, Sharda University, Greater Noida, Uttar Pradesh, IndiaSharda School of Basic Sciences & Research, Department of Environmental Sciences, Sharda University, Greater Noida, Uttar Pradesh, IndiaSharda School of Basic Sciences & Research, Department of Life Sciences, Sharda University, Greater Noida, Uttar Pradesh, IndiaA novel adsorbent, GSCQD-FeFe2O4, combining groundnut shell-derived carbon quantum dots with magnetic iron oxide nanoparticles, was synthesized for efficient removal of Pb(II) from water. Characterization studies confirmed successful synthesis, with UV analysis showing absorption at 210 nm and green luminescence indicating carbon quantum dots. FT-IR identified characteristic functional groups, while XRD confirmed well-ordered structures. FE-SEM revealed clustered carbon nanoparticles with magnetic iron oxide, and TEM showed small-sized carbon dots suitable for adsorption. Batch adsorption studies revealed optimal conditions for Pb(II) removal, including a pH range of 5-6, temperature of 20°C, contact time of 20 minutes, and adsorbent dose of 0.2 g. Isotherm studies indicated that both Langmuir and Freundlich models provided a good fit, with a calculated adsorption capacity of 37.8 mg/g. Thermodynamic analysis suggested spontaneous, exothermic adsorption with increased disorder. GSCQD-FeFe2O4 displayed excellent potential for Pb(II) removal, but further research on reusability and stability in industrial settings is needed for broader applicability.https://www.zastita-materijala.org/index.php/home/article/view/1185carbon quantum dots, groundnut shell, magnetic iron oxide nanoparticle, lead, adsorption capacity, thermodynamic parameters, thermodynamic isotherms |
| spellingShingle | Fredrick Saah Garima Nagpal Flomo Gbawoquiyq Rashi Chaudhary Groundnut shell carbon quantum dot magnetic iron oxide nanocomposite (GSCQD-FeFe2O4) for lead removal from water Zaštita Materijala carbon quantum dots, groundnut shell, magnetic iron oxide nanoparticle, lead, adsorption capacity, thermodynamic parameters, thermodynamic isotherms |
| title | Groundnut shell carbon quantum dot magnetic iron oxide nanocomposite (GSCQD-FeFe2O4) for lead removal from water |
| title_full | Groundnut shell carbon quantum dot magnetic iron oxide nanocomposite (GSCQD-FeFe2O4) for lead removal from water |
| title_fullStr | Groundnut shell carbon quantum dot magnetic iron oxide nanocomposite (GSCQD-FeFe2O4) for lead removal from water |
| title_full_unstemmed | Groundnut shell carbon quantum dot magnetic iron oxide nanocomposite (GSCQD-FeFe2O4) for lead removal from water |
| title_short | Groundnut shell carbon quantum dot magnetic iron oxide nanocomposite (GSCQD-FeFe2O4) for lead removal from water |
| title_sort | groundnut shell carbon quantum dot magnetic iron oxide nanocomposite gscqd fefe2o4 for lead removal from water |
| topic | carbon quantum dots, groundnut shell, magnetic iron oxide nanoparticle, lead, adsorption capacity, thermodynamic parameters, thermodynamic isotherms |
| url | https://www.zastita-materijala.org/index.php/home/article/view/1185 |
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