Insights into kinetics, thermodynamics, and mechanisms of chemically activated sunflower stem biochar for removal of phenol and bisphenol-A from wastewater
Abstract This study synthesized a highly efficient KOH-treated sunflower stem activated carbon (KOH-SSAC) using a two-step pyrolysis process and chemical activation using KOH. The resulting material exhibited exceptional properties, such as a high specific surface area (452 m2/g) and excellent adsor...
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| Format: | Article |
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Nature Portfolio
2024-02-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-54907-y |
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| author | Lakshmi Prasanna Lingamdinne Ganesh Kumar Reddy Angaru Chandrika Ashwinikumar Pal Janardhan Reddy Koduru Rama Rao Karri Nabisab Mujawar Mubarak Yoon-Young Chang |
| author_facet | Lakshmi Prasanna Lingamdinne Ganesh Kumar Reddy Angaru Chandrika Ashwinikumar Pal Janardhan Reddy Koduru Rama Rao Karri Nabisab Mujawar Mubarak Yoon-Young Chang |
| author_sort | Lakshmi Prasanna Lingamdinne |
| collection | DOAJ |
| description | Abstract This study synthesized a highly efficient KOH-treated sunflower stem activated carbon (KOH-SSAC) using a two-step pyrolysis process and chemical activation using KOH. The resulting material exhibited exceptional properties, such as a high specific surface area (452 m2/g) and excellent adsorption capacities for phenol (333.03 mg/g) and bisphenol A (BPA) (365.81 mg/g). The adsorption process was spontaneous and exothermic, benefiting from the synergistic effects of hydrogen bonding, electrostatic attraction, and stacking interactions. Comparative analysis also showed that KOH-SSAC performed approximately twice as well as sunflower stem biochar (SSB), indicating its potential for water treatment and pollutant removal applications. The study suggests the exploration of optimization strategies to further enhance the efficiency of KOH-SSAC in large-scale scenarios. These findings contribute to the development of improved materials for efficient water treatment and pollution control. |
| first_indexed | 2024-03-07T15:10:20Z |
| format | Article |
| id | doaj.art-a59a8827a8c347188580c7aa05ebb7eb |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-07T15:10:20Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-a59a8827a8c347188580c7aa05ebb7eb2024-03-05T18:40:30ZengNature PortfolioScientific Reports2045-23222024-02-0114111310.1038/s41598-024-54907-yInsights into kinetics, thermodynamics, and mechanisms of chemically activated sunflower stem biochar for removal of phenol and bisphenol-A from wastewaterLakshmi Prasanna Lingamdinne0Ganesh Kumar Reddy Angaru1Chandrika Ashwinikumar Pal2Janardhan Reddy Koduru3Rama Rao Karri4Nabisab Mujawar Mubarak5Yoon-Young Chang6Department of Environmental Engineering, Kwangwoon UniversityDepartment of Environmental Engineering, Kwangwoon UniversityDepartment of Environmental Engineering, Kwangwoon UniversityDepartment of Environmental Engineering, Kwangwoon UniversityPetroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi BruneiPetroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi BruneiDepartment of Environmental Engineering, Kwangwoon UniversityAbstract This study synthesized a highly efficient KOH-treated sunflower stem activated carbon (KOH-SSAC) using a two-step pyrolysis process and chemical activation using KOH. The resulting material exhibited exceptional properties, such as a high specific surface area (452 m2/g) and excellent adsorption capacities for phenol (333.03 mg/g) and bisphenol A (BPA) (365.81 mg/g). The adsorption process was spontaneous and exothermic, benefiting from the synergistic effects of hydrogen bonding, electrostatic attraction, and stacking interactions. Comparative analysis also showed that KOH-SSAC performed approximately twice as well as sunflower stem biochar (SSB), indicating its potential for water treatment and pollutant removal applications. The study suggests the exploration of optimization strategies to further enhance the efficiency of KOH-SSAC in large-scale scenarios. These findings contribute to the development of improved materials for efficient water treatment and pollution control.https://doi.org/10.1038/s41598-024-54907-ySunflower stemActivated carbonPhenolBisphenol AAdsorption |
| spellingShingle | Lakshmi Prasanna Lingamdinne Ganesh Kumar Reddy Angaru Chandrika Ashwinikumar Pal Janardhan Reddy Koduru Rama Rao Karri Nabisab Mujawar Mubarak Yoon-Young Chang Insights into kinetics, thermodynamics, and mechanisms of chemically activated sunflower stem biochar for removal of phenol and bisphenol-A from wastewater Scientific Reports Sunflower stem Activated carbon Phenol Bisphenol A Adsorption |
| title | Insights into kinetics, thermodynamics, and mechanisms of chemically activated sunflower stem biochar for removal of phenol and bisphenol-A from wastewater |
| title_full | Insights into kinetics, thermodynamics, and mechanisms of chemically activated sunflower stem biochar for removal of phenol and bisphenol-A from wastewater |
| title_fullStr | Insights into kinetics, thermodynamics, and mechanisms of chemically activated sunflower stem biochar for removal of phenol and bisphenol-A from wastewater |
| title_full_unstemmed | Insights into kinetics, thermodynamics, and mechanisms of chemically activated sunflower stem biochar for removal of phenol and bisphenol-A from wastewater |
| title_short | Insights into kinetics, thermodynamics, and mechanisms of chemically activated sunflower stem biochar for removal of phenol and bisphenol-A from wastewater |
| title_sort | insights into kinetics thermodynamics and mechanisms of chemically activated sunflower stem biochar for removal of phenol and bisphenol a from wastewater |
| topic | Sunflower stem Activated carbon Phenol Bisphenol A Adsorption |
| url | https://doi.org/10.1038/s41598-024-54907-y |
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