Synthesis and development of Fe3O4/SiO2/CaCO3 nanocomposite adsorbents for ammonia adsorption in the shrimp pond waste
We developed a Fe3O4/SiO2/CaCO3 magnetic nanocomposite adsorbent, with SiO2 synthesized from sea sand and CaCO3 derived from coral skeletons. The Fe3O4/SiO2/CaCO3 nanocomposite was characterized and employed as an adsorbent to reduce ammonia levels in shrimp pond wastewater where ammonia concentrati...
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2024-10-01
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| author | Lukluatus Syavika Anugrah Ricky Wijaya Alif Alfarisyi Syah |
| author_facet | Lukluatus Syavika Anugrah Ricky Wijaya Alif Alfarisyi Syah |
| author_sort | Lukluatus Syavika |
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| description | We developed a Fe3O4/SiO2/CaCO3 magnetic nanocomposite adsorbent, with SiO2 synthesized from sea sand and CaCO3 derived from coral skeletons. The Fe3O4/SiO2/CaCO3 nanocomposite was characterized and employed as an adsorbent to reduce ammonia levels in shrimp pond wastewater where ammonia concentrations ranged from 11.9 to 38.8 mg/L. We further explored the effects of various parameters on the removal efficiency, adsorption capacity, thermodynamics, isoterm, and kinetics of the adsorption process. Specifically, we examined the influence of pH (3–8), adsorbent mass (0.025–0.25 g), temperature (27–60 ℃), and contact time (10–120 min). Ammonia concentrations in the filtrate were measured using the Nessler method. The synthesis of CaCO3 from coral skeleton, SiO2 from sand, and Fe3O4/SiO2/CaCO3 adsorbent was successfully achieved, as confirmed by XRF, FTIR, and XRD characterizations. The adsorption process adhered to the second-order kinetics model, exhibited spontaneous behavior with a negative ΔG value, and followed the Langmuir isotherm model (R2 = 0.9267). The results indicated an optimal adsorbent mass of 0.025 g, achieving 89.3% adsorption at 60 minutes of contact time, a temperature of 27 ℃, and an optimal pH of 5. When applied to shrimp pond wastewater, the Fe3O4/SiO2/CaCO3 adsorbent demonstrated an adsorption efficiency ranging from 52.1% to 86.8% and an adsorption capacity between 6.2 and 30.9 mg/g. |
| format | Article |
| id | doaj-art-69e450df1c0a40ddb00ce727efa4937f |
| institution | Kabale University |
| issn | 2372-0352 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | AIMS Environmental Science |
| spelling | doaj-art-69e450df1c0a40ddb00ce727efa4937f2025-01-24T01:31:32ZengAIMS PressAIMS Environmental Science2372-03522024-10-0111688389910.3934/environsci.2024044Synthesis and development of Fe3O4/SiO2/CaCO3 nanocomposite adsorbents for ammonia adsorption in the shrimp pond wasteLukluatus Syavika0Anugrah Ricky Wijaya1Alif Alfarisyi Syah2Department of Chemistry, Faculty of Mathematic and Sciences, Universitas Negeri Malang (UM) or State University of Malang, Jl. Semarang 5 Malang 65145, IndonesiaDepartment of Chemistry, Faculty of Mathematic and Sciences, Universitas Negeri Malang (UM) or State University of Malang, Jl. Semarang 5 Malang 65145, IndonesiaDepartment of Chemistry, Faculty of Mathematic and Sciences, Universitas Negeri Malang (UM) or State University of Malang, Jl. Semarang 5 Malang 65145, IndonesiaWe developed a Fe3O4/SiO2/CaCO3 magnetic nanocomposite adsorbent, with SiO2 synthesized from sea sand and CaCO3 derived from coral skeletons. The Fe3O4/SiO2/CaCO3 nanocomposite was characterized and employed as an adsorbent to reduce ammonia levels in shrimp pond wastewater where ammonia concentrations ranged from 11.9 to 38.8 mg/L. We further explored the effects of various parameters on the removal efficiency, adsorption capacity, thermodynamics, isoterm, and kinetics of the adsorption process. Specifically, we examined the influence of pH (3–8), adsorbent mass (0.025–0.25 g), temperature (27–60 ℃), and contact time (10–120 min). Ammonia concentrations in the filtrate were measured using the Nessler method. The synthesis of CaCO3 from coral skeleton, SiO2 from sand, and Fe3O4/SiO2/CaCO3 adsorbent was successfully achieved, as confirmed by XRF, FTIR, and XRD characterizations. The adsorption process adhered to the second-order kinetics model, exhibited spontaneous behavior with a negative ΔG value, and followed the Langmuir isotherm model (R2 = 0.9267). The results indicated an optimal adsorbent mass of 0.025 g, achieving 89.3% adsorption at 60 minutes of contact time, a temperature of 27 ℃, and an optimal pH of 5. When applied to shrimp pond wastewater, the Fe3O4/SiO2/CaCO3 adsorbent demonstrated an adsorption efficiency ranging from 52.1% to 86.8% and an adsorption capacity between 6.2 and 30.9 mg/g.https://www.aimspress.com/article/doi/10.3934/environsci.2024044ammoniaadsorbentadsorptionnesslersea sandcoral skeleton |
| spellingShingle | Lukluatus Syavika Anugrah Ricky Wijaya Alif Alfarisyi Syah Synthesis and development of Fe3O4/SiO2/CaCO3 nanocomposite adsorbents for ammonia adsorption in the shrimp pond waste AIMS Environmental Science ammonia adsorbent adsorption nessler sea sand coral skeleton |
| title | Synthesis and development of Fe3O4/SiO2/CaCO3 nanocomposite adsorbents for ammonia adsorption in the shrimp pond waste |
| title_full | Synthesis and development of Fe3O4/SiO2/CaCO3 nanocomposite adsorbents for ammonia adsorption in the shrimp pond waste |
| title_fullStr | Synthesis and development of Fe3O4/SiO2/CaCO3 nanocomposite adsorbents for ammonia adsorption in the shrimp pond waste |
| title_full_unstemmed | Synthesis and development of Fe3O4/SiO2/CaCO3 nanocomposite adsorbents for ammonia adsorption in the shrimp pond waste |
| title_short | Synthesis and development of Fe3O4/SiO2/CaCO3 nanocomposite adsorbents for ammonia adsorption in the shrimp pond waste |
| title_sort | synthesis and development of fe3o4 sio2 caco3 nanocomposite adsorbents for ammonia adsorption in the shrimp pond waste |
| topic | ammonia adsorbent adsorption nessler sea sand coral skeleton |
| url | https://www.aimspress.com/article/doi/10.3934/environsci.2024044 |
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