Adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium
In this study, the removal of 2,4-dichlorophenol (2,4-DCP) from aqueous solutions was performed using coconut shell activated carbon prepared by a two-stage self-generated atmosphere method. Coconut shell was first semi-carbonized at 300 °C for an hour followed by chemical activation with zinc chlor...
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| Format: | Article |
| Language: | English English |
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Kaunas University Technology
2017
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| Online Access: | https://eprints.ums.edu.my/id/eprint/30083/1/Adsorption%20performance%20and%20evaluation%20of%20activated%20carbon%20from%20coconut%20shell%20for%20the%20removal%20of%20chlorinated%20phenols%20in%20aqueous%20medium%20ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/30083/2/Adsorption%20performance%20and%20evaluation%20of%20activated%20carbon%20from%20coconut%20shell%20for%20the%20removal%20of%20chlorinated%20phenols%20in%20aqueous%20medium%20FULL%20TEXT.pdf |
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| author | Collin Glen Joseph Anthony Joseph S.M. Anisuzzaman Sariah Abang Baba Musta Kye, Shane Quek Xin, Lin Wong |
| author_facet | Collin Glen Joseph Anthony Joseph S.M. Anisuzzaman Sariah Abang Baba Musta Kye, Shane Quek Xin, Lin Wong |
| author_sort | Collin Glen Joseph Anthony Joseph |
| collection | UMS |
| description | In this study, the removal of 2,4-dichlorophenol (2,4-DCP) from aqueous solutions was performed using coconut shell activated carbon prepared by a two-stage self-generated atmosphere method. Coconut shell was first semi-carbonized at 300 °C for an hour followed by chemical activation with zinc chloride (ZnCl2) as activating agent at 500 °C for 2 h. The effect of impregnation ratio on the physical and chemical properties of activated carbons (ACs) was studied. The morphology and surface chemistry of the prepared carbons were characterized using Scanning Electron Microscope (SEM) and Fourier Transform Infrared spectroscopy (FTIR) respectively. The percentage of yield for the prepared AC was found to be in the range of 26.40-38.82 %. AC registered the highest adsorption capacity and was used in subsequent batch adsorption studies consisting of parameters such as initial concentration, adsorbent dosage and solution pH. The maximum surface area of the best produced AC was recorded as 1482 m2 g-1. The adsorption capacity was found to increase in proportional to the initial concentration and adsorbent dosage, while acidic solution pH was more favourable for the adsorption of 2,4-DCP by the prepared AC. The equilibrium time for the adsorption of 20 mg L-1 of 2,4-DCP on 0.5 g of AC was achieved in 180 min. Adsorption isotherms such as Langmuir, Freundlich and Temkin isotherm models were employed to examine the experimental isotherms while the reaction kinetic data was analysed using pseudo-first-order, pseudo-second-order and intraparticle diffusion model. The 2,4-DCP adsorption results fitted best in the Freundlich isotherm as indicated by the high correlation coefficient value (R2 > 0.9949) while the adsorption kinetic fitted to the pseudo second-order model (R2 > 0.9621). |
| first_indexed | 2024-03-06T03:09:39Z |
| format | Article |
| id | ums.eprints-30083 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-03-06T03:09:39Z |
| publishDate | 2017 |
| publisher | Kaunas University Technology |
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| spelling | ums.eprints-300832021-07-26T05:32:13Z https://eprints.ums.edu.my/id/eprint/30083/ Adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium Collin Glen Joseph Anthony Joseph S.M. Anisuzzaman Sariah Abang Baba Musta Kye, Shane Quek Xin, Lin Wong TD Environmental technology. Sanitary engineering In this study, the removal of 2,4-dichlorophenol (2,4-DCP) from aqueous solutions was performed using coconut shell activated carbon prepared by a two-stage self-generated atmosphere method. Coconut shell was first semi-carbonized at 300 °C for an hour followed by chemical activation with zinc chloride (ZnCl2) as activating agent at 500 °C for 2 h. The effect of impregnation ratio on the physical and chemical properties of activated carbons (ACs) was studied. The morphology and surface chemistry of the prepared carbons were characterized using Scanning Electron Microscope (SEM) and Fourier Transform Infrared spectroscopy (FTIR) respectively. The percentage of yield for the prepared AC was found to be in the range of 26.40-38.82 %. AC registered the highest adsorption capacity and was used in subsequent batch adsorption studies consisting of parameters such as initial concentration, adsorbent dosage and solution pH. The maximum surface area of the best produced AC was recorded as 1482 m2 g-1. The adsorption capacity was found to increase in proportional to the initial concentration and adsorbent dosage, while acidic solution pH was more favourable for the adsorption of 2,4-DCP by the prepared AC. The equilibrium time for the adsorption of 20 mg L-1 of 2,4-DCP on 0.5 g of AC was achieved in 180 min. Adsorption isotherms such as Langmuir, Freundlich and Temkin isotherm models were employed to examine the experimental isotherms while the reaction kinetic data was analysed using pseudo-first-order, pseudo-second-order and intraparticle diffusion model. The 2,4-DCP adsorption results fitted best in the Freundlich isotherm as indicated by the high correlation coefficient value (R2 > 0.9949) while the adsorption kinetic fitted to the pseudo second-order model (R2 > 0.9621). Kaunas University Technology 2017 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/30083/1/Adsorption%20performance%20and%20evaluation%20of%20activated%20carbon%20from%20coconut%20shell%20for%20the%20removal%20of%20chlorinated%20phenols%20in%20aqueous%20medium%20ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/30083/2/Adsorption%20performance%20and%20evaluation%20of%20activated%20carbon%20from%20coconut%20shell%20for%20the%20removal%20of%20chlorinated%20phenols%20in%20aqueous%20medium%20FULL%20TEXT.pdf Collin Glen Joseph Anthony Joseph and S.M. Anisuzzaman and Sariah Abang and Baba Musta and Kye, Shane Quek and Xin, Lin Wong (2017) Adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium. Materials Science (Medziagotyra), 23. pp. 389-397. ISSN 1392–1320 (P-ISSN) , 2029–7289 (E-ISSN) https://www.matsc.ktu.lt/index.php/MatSc/article/view/16221 https://doi.org/10.5755/j01.ms.23.4.16221 https://doi.org/10.5755/j01.ms.23.4.16221 |
| spellingShingle | TD Environmental technology. Sanitary engineering Collin Glen Joseph Anthony Joseph S.M. Anisuzzaman Sariah Abang Baba Musta Kye, Shane Quek Xin, Lin Wong Adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium |
| title | Adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium |
| title_full | Adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium |
| title_fullStr | Adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium |
| title_full_unstemmed | Adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium |
| title_short | Adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium |
| title_sort | adsorption performance and evaluation of activated carbon from coconut shell for the removal of chlorinated phenols in aqueous medium |
| topic | TD Environmental technology. Sanitary engineering |
| url | https://eprints.ums.edu.my/id/eprint/30083/1/Adsorption%20performance%20and%20evaluation%20of%20activated%20carbon%20from%20coconut%20shell%20for%20the%20removal%20of%20chlorinated%20phenols%20in%20aqueous%20medium%20ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/30083/2/Adsorption%20performance%20and%20evaluation%20of%20activated%20carbon%20from%20coconut%20shell%20for%20the%20removal%20of%20chlorinated%20phenols%20in%20aqueous%20medium%20FULL%20TEXT.pdf |
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