Sustainable boron removal from aqueous solutions using pomegranate peel adsorbents: A comprehensive study on isotherms, kinetics, and thermodynamics
This study investigates the efficacy of pomegranate peel powders, specifically raw pomegranate peels (RPA), hydrochloric acid-modified (APA), and sodium hydroxide-modified (BPA) variants, as adsorbents for boron removal from aqueous solutions. Fourier-transform infrared (FTIR) analysis was employed...
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| Language: | English |
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Elsevier
2024-01-01
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| Series: | Desalination and Water Treatment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1944398624000596 |
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| author | Fawaz Al-Badaii Khairiatul Mardiana Jansar Nurul Ain Ab Jalil Azhar Abdul Halim |
| author_facet | Fawaz Al-Badaii Khairiatul Mardiana Jansar Nurul Ain Ab Jalil Azhar Abdul Halim |
| author_sort | Fawaz Al-Badaii |
| collection | DOAJ |
| description | This study investigates the efficacy of pomegranate peel powders, specifically raw pomegranate peels (RPA), hydrochloric acid-modified (APA), and sodium hydroxide-modified (BPA) variants, as adsorbents for boron removal from aqueous solutions. Fourier-transform infrared (FTIR) analysis was employed to identify the functional groups involved in the adsorption process, while field emission scanning electron microscopy (FESEM) was utilized to examine the surface morphology of the adsorbents. Batch adsorption experiments optimized parameters such as pH, adsorbent dose, initial boron concentration, contact time, and temperature. The optimal pH for adsorption was 6, with maximum efficiencies of 42%, 69.3%, and 67.26% for RPA, APA, and BPA, respectively. Adsorption capacity increased with higher doses of adsorbents and temperature. The Langmuir model describes the adsorption isotherm well, while the adsorption kinetics were adequately described by the sequential fitting of the Elovich and pseudo-first-order models. Thermodynamic parameters (ΔS°, ΔG°, ΔH°) were examined during boron adsorption. A positive entropy change (∆S) indicated increased disorder. All adsorbents (RPA, APA, BPA) favoured boron, with APA and BPA showing a stronger affinity than RPA. Adsorption was endothermic and non-spontaneous, necessitating external energy. The study underscores the economical and reliable nature of RPA, APA, and BPA as effective adsorbents for repetitive boron ion removal, emphasizing their potential for sustainable water treatment solutions. |
| format | Article |
| id | doaj-art-99c78d0ebc194e27aa4d634e0afce80d |
| institution | OA Journals |
| issn | 1944-3986 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Desalination and Water Treatment |
| spelling | doaj-art-99c78d0ebc194e27aa4d634e0afce80d2025-08-20T02:01:14ZengElsevierDesalination and Water Treatment1944-39862024-01-0131710004510.1016/j.dwt.2024.100045Sustainable boron removal from aqueous solutions using pomegranate peel adsorbents: A comprehensive study on isotherms, kinetics, and thermodynamicsFawaz Al-Badaii0Khairiatul Mardiana Jansar1Nurul Ain Ab Jalil2Azhar Abdul Halim3Department of Earth Sciences and Environment, Faculty of Science and Technology Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia; Biology Department, Faculty of Applied Science, Thamar University, Dhamar 87246, YemenDepartment of Earth Sciences and Environment, Faculty of Science and Technology Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, MalaysiaDepartment of Earth Sciences and Environment, Faculty of Science and Technology Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia; Biology Department, Faculty of Applied Science, Thamar University, Dhamar 87246, YemenDepartment of Earth Sciences and Environment, Faculty of Science and Technology Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia; Corresponding author.This study investigates the efficacy of pomegranate peel powders, specifically raw pomegranate peels (RPA), hydrochloric acid-modified (APA), and sodium hydroxide-modified (BPA) variants, as adsorbents for boron removal from aqueous solutions. Fourier-transform infrared (FTIR) analysis was employed to identify the functional groups involved in the adsorption process, while field emission scanning electron microscopy (FESEM) was utilized to examine the surface morphology of the adsorbents. Batch adsorption experiments optimized parameters such as pH, adsorbent dose, initial boron concentration, contact time, and temperature. The optimal pH for adsorption was 6, with maximum efficiencies of 42%, 69.3%, and 67.26% for RPA, APA, and BPA, respectively. Adsorption capacity increased with higher doses of adsorbents and temperature. The Langmuir model describes the adsorption isotherm well, while the adsorption kinetics were adequately described by the sequential fitting of the Elovich and pseudo-first-order models. Thermodynamic parameters (ΔS°, ΔG°, ΔH°) were examined during boron adsorption. A positive entropy change (∆S) indicated increased disorder. All adsorbents (RPA, APA, BPA) favoured boron, with APA and BPA showing a stronger affinity than RPA. Adsorption was endothermic and non-spontaneous, necessitating external energy. The study underscores the economical and reliable nature of RPA, APA, and BPA as effective adsorbents for repetitive boron ion removal, emphasizing their potential for sustainable water treatment solutions.http://www.sciencedirect.com/science/article/pii/S1944398624000596Boron removalPomegranate peelAdsorptionIsothermsKineticsAnd thermodynamics |
| spellingShingle | Fawaz Al-Badaii Khairiatul Mardiana Jansar Nurul Ain Ab Jalil Azhar Abdul Halim Sustainable boron removal from aqueous solutions using pomegranate peel adsorbents: A comprehensive study on isotherms, kinetics, and thermodynamics Desalination and Water Treatment Boron removal Pomegranate peel Adsorption Isotherms Kinetics And thermodynamics |
| title | Sustainable boron removal from aqueous solutions using pomegranate peel adsorbents: A comprehensive study on isotherms, kinetics, and thermodynamics |
| title_full | Sustainable boron removal from aqueous solutions using pomegranate peel adsorbents: A comprehensive study on isotherms, kinetics, and thermodynamics |
| title_fullStr | Sustainable boron removal from aqueous solutions using pomegranate peel adsorbents: A comprehensive study on isotherms, kinetics, and thermodynamics |
| title_full_unstemmed | Sustainable boron removal from aqueous solutions using pomegranate peel adsorbents: A comprehensive study on isotherms, kinetics, and thermodynamics |
| title_short | Sustainable boron removal from aqueous solutions using pomegranate peel adsorbents: A comprehensive study on isotherms, kinetics, and thermodynamics |
| title_sort | sustainable boron removal from aqueous solutions using pomegranate peel adsorbents a comprehensive study on isotherms kinetics and thermodynamics |
| topic | Boron removal Pomegranate peel Adsorption Isotherms Kinetics And thermodynamics |
| url | http://www.sciencedirect.com/science/article/pii/S1944398624000596 |
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