Mechanistic insights into methylene blue removal via olive stone-activated carbon: A study on surface porosity and characterization
Global attention is increasingly focused on the adverse health and environmental impacts of textile dyes, marking the necessity for effective and sustainable dye remediation strategies in industrial wastewater. This study introduces a novel, eco-friendly activated carbon produced from olive stones (...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Saudi Chemical Society |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1319610323000960 |
| _version_ | 1797676285073293312 |
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| author | Yassine Wafaa Said Akazdam Souade Zyade Maryam Chafiq Young Gun Ko Mohammed Chafi Mohammed Tahiri Awad A. Alrashdi Hassane Lgaz |
| author_facet | Yassine Wafaa Said Akazdam Souade Zyade Maryam Chafiq Young Gun Ko Mohammed Chafi Mohammed Tahiri Awad A. Alrashdi Hassane Lgaz |
| author_sort | Yassine Wafaa |
| collection | DOAJ |
| description | Global attention is increasingly focused on the adverse health and environmental impacts of textile dyes, marking the necessity for effective and sustainable dye remediation strategies in industrial wastewater. This study introduces a novel, eco-friendly activated carbon produced from olive stones (OLS), a readily available by-product of the olive oil industry. The OLS was chemically activated with H3PO4 and KOH, creating two materials: OLS-P and OLS-K, respectively. These were then utilized as cost-effective adsorbents for the removal of methylene blue (MB) dye. The activated materials were characterized via X-ray diffraction (XRD), Fourier transform infra-red spectroscopy (FTIR), iodine number, and pHpzc analysis, with the zero-point charge determined as approximately pH 1 for OLS-P and pH 8 for OLS-K. Batch adsorption experiments conducted at various temperatures revealed that adsorption process followed the pseudo-second-order kinetic model and the Langmuir isotherm model. Temperature was found to significantly impact adsorption performance, with OLS-K demonstrating a substantial increase in adsorption capacity (qe) from 6.27 mg/g at 23˚C to 94.7 mg/g at 32 ˚C. Conversely, OLS-P displayed a decrease in qe from 16.78 mg/g at 23 ˚C to 3.67 mg/g at 32 ˚C as temperature increased. The study highlights the potential of KOH-treated olive stones as a promising, cost-efficient adsorbent for methylene blue remediation from wastewater. |
| first_indexed | 2024-03-11T22:26:46Z |
| format | Article |
| id | doaj.art-53d45261319e415aa86edfcd0b6866dd |
| institution | Directory Open Access Journal |
| issn | 1319-6103 |
| language | English |
| last_indexed | 2024-03-11T22:26:46Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Saudi Chemical Society |
| spelling | doaj.art-53d45261319e415aa86edfcd0b6866dd2023-09-24T05:14:25ZengElsevierJournal of Saudi Chemical Society1319-61032023-09-01275101692Mechanistic insights into methylene blue removal via olive stone-activated carbon: A study on surface porosity and characterizationYassine Wafaa0Said Akazdam1Souade Zyade2Maryam Chafiq3Young Gun Ko4Mohammed Chafi5Mohammed Tahiri6Awad A. Alrashdi7Hassane Lgaz8Laboratory of Engineering, Processes and Environment (LEPE), High School of Technology, University Hassan II of Casablanca, Morocco; Equipe Interaction Matière – Matière et Procédés Membranaires (I3MP), Faculté des Sciences Aïn Chock, B.P. 5366, Maârif, Université Hassan II Casablanca, MarocLaboratory of Engineering, Processes and Environment (LEPE), High School of Technology, University Hassan II of Casablanca, MoroccoLaboratory of Engineering, Processes and Environment (LEPE), High School of Technology, University Hassan II of Casablanca, Morocco; Equipe Interaction Matière – Matière et Procédés Membranaires (I3MP), Faculté des Sciences Aïn Chock, B.P. 5366, Maârif, Université Hassan II Casablanca, MarocMaterials Electrochemistry Group, School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, South Korea; Corresponding authors.Materials Electrochemistry Group, School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, South Korea; Corresponding authors.Laboratory of Engineering, Processes and Environment (LEPE), High School of Technology, University Hassan II of Casablanca, MoroccoEquipe Interaction Matière – Matière et Procédés Membranaires (I3MP), Faculté des Sciences Aïn Chock, B.P. 5366, Maârif, Université Hassan II Casablanca, MarocChemistry Department, Al-Qunfudah University College, Umm Al-Qura University, Mecca, Saudi ArabiaInnovative Durable Building and Infrastructure Research Center, Center for Creative Convergence Education, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si, Gyeonggi-do 15588, South Korea; Corresponding authors.Global attention is increasingly focused on the adverse health and environmental impacts of textile dyes, marking the necessity for effective and sustainable dye remediation strategies in industrial wastewater. This study introduces a novel, eco-friendly activated carbon produced from olive stones (OLS), a readily available by-product of the olive oil industry. The OLS was chemically activated with H3PO4 and KOH, creating two materials: OLS-P and OLS-K, respectively. These were then utilized as cost-effective adsorbents for the removal of methylene blue (MB) dye. The activated materials were characterized via X-ray diffraction (XRD), Fourier transform infra-red spectroscopy (FTIR), iodine number, and pHpzc analysis, with the zero-point charge determined as approximately pH 1 for OLS-P and pH 8 for OLS-K. Batch adsorption experiments conducted at various temperatures revealed that adsorption process followed the pseudo-second-order kinetic model and the Langmuir isotherm model. Temperature was found to significantly impact adsorption performance, with OLS-K demonstrating a substantial increase in adsorption capacity (qe) from 6.27 mg/g at 23˚C to 94.7 mg/g at 32 ˚C. Conversely, OLS-P displayed a decrease in qe from 16.78 mg/g at 23 ˚C to 3.67 mg/g at 32 ˚C as temperature increased. The study highlights the potential of KOH-treated olive stones as a promising, cost-efficient adsorbent for methylene blue remediation from wastewater.http://www.sciencedirect.com/science/article/pii/S1319610323000960AdsorptionLow-cost adsorbentOlive stoneActivated carbonDyesChemical activation |
| spellingShingle | Yassine Wafaa Said Akazdam Souade Zyade Maryam Chafiq Young Gun Ko Mohammed Chafi Mohammed Tahiri Awad A. Alrashdi Hassane Lgaz Mechanistic insights into methylene blue removal via olive stone-activated carbon: A study on surface porosity and characterization Journal of Saudi Chemical Society Adsorption Low-cost adsorbent Olive stone Activated carbon Dyes Chemical activation |
| title | Mechanistic insights into methylene blue removal via olive stone-activated carbon: A study on surface porosity and characterization |
| title_full | Mechanistic insights into methylene blue removal via olive stone-activated carbon: A study on surface porosity and characterization |
| title_fullStr | Mechanistic insights into methylene blue removal via olive stone-activated carbon: A study on surface porosity and characterization |
| title_full_unstemmed | Mechanistic insights into methylene blue removal via olive stone-activated carbon: A study on surface porosity and characterization |
| title_short | Mechanistic insights into methylene blue removal via olive stone-activated carbon: A study on surface porosity and characterization |
| title_sort | mechanistic insights into methylene blue removal via olive stone activated carbon a study on surface porosity and characterization |
| topic | Adsorption Low-cost adsorbent Olive stone Activated carbon Dyes Chemical activation |
| url | http://www.sciencedirect.com/science/article/pii/S1319610323000960 |
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