Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments
This study explores the use of waste coal fly ash supported with magnetite (FA/Fe3O4) as an environmentally friendly adsorbent for removing Pb metal from aqueous solutions. FA/Fe3O4 composites were synthesized using the ball mill method with varying ratios (9:1, 9:3, and 9:5). The FA/Fe3O4 sample wi...
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Elsevier
2024-12-01
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| Series: | Case Studies in Chemical and Environmental Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666016424002779 |
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| author | Nurmaya Arofah Annisa Naila Izzati Yusraini Dian Inayati Siregar Yulyani Nur Azizah Agus Rimus Liandi |
| author_facet | Nurmaya Arofah Annisa Naila Izzati Yusraini Dian Inayati Siregar Yulyani Nur Azizah Agus Rimus Liandi |
| author_sort | Nurmaya Arofah |
| collection | DOAJ |
| description | This study explores the use of waste coal fly ash supported with magnetite (FA/Fe3O4) as an environmentally friendly adsorbent for removing Pb metal from aqueous solutions. FA/Fe3O4 composites were synthesized using the ball mill method with varying ratios (9:1, 9:3, and 9:5). The FA/Fe3O4 sample with a 9:3 ratio exhibited the most promising characteristics, including a high surface area (4.878 m2/g), substantial pore volume (2.508 cc/g), large average pore diameter (3.060 nm), low crystallinity (12.98 %), small crystal size (28.41 nm), and non-uniform particle morphology (average size of 2.6 μm). Optimal conditions for Pb removal were achieved with the 9:3 adsorbent, showing 95.50 % adsorption efficiency at 30 mg adsorbent mass, 98.83 % efficiency at pH 4, and 99.45 % efficiency at a concentration of 25 ppm. These findings indicate that FA/Fe3O4 composites provide a highly efficient and straightforward method for Pb removal, offering significant practical value in environmental applications. |
| format | Article |
| id | doaj-art-5ada3bb91e1f4b78ad9db9e1d410d2d4 |
| institution | Kabale University |
| issn | 2666-0164 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Chemical and Environmental Engineering |
| spelling | doaj-art-5ada3bb91e1f4b78ad9db9e1d410d2d42024-12-02T05:05:59ZengElsevierCase Studies in Chemical and Environmental Engineering2666-01642024-12-0110100883Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environmentsNurmaya Arofah0Annisa Naila Izzati1Yusraini Dian Inayati Siregar2Yulyani Nur Azizah3Agus Rimus Liandi4Department of Mining Engineering, Faculty of Science and Technology, Universitas Islam Negeri Syarif Hidayatullah Jakarta, Tangerang Selatan, 15412, Indonesia; Corresponding author.Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Syarif Hidayatullah Jakarta, Tangerang Selatan, 15412, IndonesiaDepartment of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Syarif Hidayatullah Jakarta, Tangerang Selatan, 15412, IndonesiaDepartment of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Syarif Hidayatullah Jakarta, Tangerang Selatan, 15412, IndonesiaDepartment of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Syarif Hidayatullah Jakarta, Tangerang Selatan, 15412, IndonesiaThis study explores the use of waste coal fly ash supported with magnetite (FA/Fe3O4) as an environmentally friendly adsorbent for removing Pb metal from aqueous solutions. FA/Fe3O4 composites were synthesized using the ball mill method with varying ratios (9:1, 9:3, and 9:5). The FA/Fe3O4 sample with a 9:3 ratio exhibited the most promising characteristics, including a high surface area (4.878 m2/g), substantial pore volume (2.508 cc/g), large average pore diameter (3.060 nm), low crystallinity (12.98 %), small crystal size (28.41 nm), and non-uniform particle morphology (average size of 2.6 μm). Optimal conditions for Pb removal were achieved with the 9:3 adsorbent, showing 95.50 % adsorption efficiency at 30 mg adsorbent mass, 98.83 % efficiency at pH 4, and 99.45 % efficiency at a concentration of 25 ppm. These findings indicate that FA/Fe3O4 composites provide a highly efficient and straightforward method for Pb removal, offering significant practical value in environmental applications.http://www.sciencedirect.com/science/article/pii/S2666016424002779AdsorptionFe3O4Fly ashMagnetic adsorbentPb metal |
| spellingShingle | Nurmaya Arofah Annisa Naila Izzati Yusraini Dian Inayati Siregar Yulyani Nur Azizah Agus Rimus Liandi Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments Case Studies in Chemical and Environmental Engineering Adsorption Fe3O4 Fly ash Magnetic adsorbent Pb metal |
| title | Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments |
| title_full | Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments |
| title_fullStr | Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments |
| title_full_unstemmed | Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments |
| title_short | Utilization of magnetite-supported coal fly ash as an efficient adsorbent for Pb metal removal in aqueous environments |
| title_sort | utilization of magnetite supported coal fly ash as an efficient adsorbent for pb metal removal in aqueous environments |
| topic | Adsorption Fe3O4 Fly ash Magnetic adsorbent Pb metal |
| url | http://www.sciencedirect.com/science/article/pii/S2666016424002779 |
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