Back to Search
Start Over
Adsorption Isotherms of Caffeine and Theophylline on Metal-Organic Frameworks.
- Source :
-
Adsorption Science & Technology . 2014, Vol. 32 Issue 9, p725-736. 12p. - Publication Year :
- 2014
-
Abstract
- The adsorption behaviours of caffeine and theophylline on different metal-organic frameworks were examined by comparing their adsorption isotherms. Among C18, UIO-66, UIO-66-NH2 and MIL-125-NH2, 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 (r2) of the Langmuir-Freundlich model for adsorption of caffeine and theophylline on UIO-66 were 0.976 and 0.989, respectively. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02636174
- Volume :
- 32
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Adsorption Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 100085224
- Full Text :
- https://doi.org/10.1260/0263-6174.32.9.725