Adsorption Isotherms of Caffeine and Theophylline on Metal-Organic Frameworks
The adsorption behaviours of caffeine and theophylline on different metal-organic frameworks were examined by comparing their adsorption isotherms. Among C 18 , UIO-66, UIO-66-NH 2 and MIL-125-NH 2 , UIO-66 showed the highest amount of adsorption of target compounds (i.e. caffeine and theophylline)....
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2014-09-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.32.9.725 |
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| _version_ | 1841564445449388032 |
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| author | Yu Ri Lee Minglei Tian Se-Na Kim Wha-Seung Ahn Kyung Ho Row |
| author_facet | Yu Ri Lee Minglei Tian Se-Na Kim Wha-Seung Ahn Kyung Ho Row |
| author_sort | Yu Ri Lee |
| collection | DOAJ |
| description | The adsorption behaviours of caffeine and theophylline on different metal-organic frameworks were examined by comparing their adsorption isotherms. Among C 18 , UIO-66, UIO-66-NH 2 and MIL-125-NH 2 , UIO-66 showed the highest amount of adsorption of target compounds (i.e. caffeine and theophylline). The maximum adsorbed amounts of caffeine and theophylline on UIO-66 were 0.451 and 0.392 mg, respectively. The experimental parameters in the equilibrium isotherms were estimated by linear and non-linear regression analyses. The adsorption equilibrium data of caffeine and theophylline were investigated using the following four models: linear, Langmuir, Freundlich and Langmuir–Freundlich models. Of these models, the Langmuir–Freundlich model showed the best fit. The regression coefficients (r 2 ) of the Langmuir–Freundlich model for adsorption of caffeine and theophylline on UIO-66 were 0.976 and 0.989, respectively. |
| format | Article |
| id | doaj-art-1e79c417c83d47f2af7786577bdb7afa |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2014-09-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-1e79c417c83d47f2af7786577bdb7afa2025-01-02T22:38:05ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382014-09-013210.1260/0263-6174.32.9.725Adsorption Isotherms of Caffeine and Theophylline on Metal-Organic FrameworksYu Ri LeeMinglei TianSe-Na KimWha-Seung AhnKyung Ho RowThe adsorption behaviours of caffeine and theophylline on different metal-organic frameworks were examined by comparing their adsorption isotherms. Among C 18 , UIO-66, UIO-66-NH 2 and MIL-125-NH 2 , UIO-66 showed the highest amount of adsorption of target compounds (i.e. caffeine and theophylline). The maximum adsorbed amounts of caffeine and theophylline on UIO-66 were 0.451 and 0.392 mg, respectively. The experimental parameters in the equilibrium isotherms were estimated by linear and non-linear regression analyses. The adsorption equilibrium data of caffeine and theophylline were investigated using the following four models: linear, Langmuir, Freundlich and Langmuir–Freundlich models. Of these models, the Langmuir–Freundlich model showed the best fit. The regression coefficients (r 2 ) of the Langmuir–Freundlich model for adsorption of caffeine and theophylline on UIO-66 were 0.976 and 0.989, respectively.https://doi.org/10.1260/0263-6174.32.9.725 |
| spellingShingle | Yu Ri Lee Minglei Tian Se-Na Kim Wha-Seung Ahn Kyung Ho Row Adsorption Isotherms of Caffeine and Theophylline on Metal-Organic Frameworks Adsorption Science & Technology |
| title | Adsorption Isotherms of Caffeine and Theophylline on Metal-Organic Frameworks |
| title_full | Adsorption Isotherms of Caffeine and Theophylline on Metal-Organic Frameworks |
| title_fullStr | Adsorption Isotherms of Caffeine and Theophylline on Metal-Organic Frameworks |
| title_full_unstemmed | Adsorption Isotherms of Caffeine and Theophylline on Metal-Organic Frameworks |
| title_short | Adsorption Isotherms of Caffeine and Theophylline on Metal-Organic Frameworks |
| title_sort | adsorption isotherms of caffeine and theophylline on metal organic frameworks |
| url | https://doi.org/10.1260/0263-6174.32.9.725 |
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