Balarak, Davoud and Mostafapour, Ferdos and Joghtaei, Ali (2017) Thermodynamic Analysis for Adsorption of Amoxicillin onto Magnetic Carbon Nanotubes. British Journal of Pharmaceutical Research, 16 (6). pp. 1-11. ISSN 22312919
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Abstract
The effect of temperature on the equilibrium adsorption of Amoxicillin (AMO) from aqueous solution using modified magnetic multi-walled carbon nanotubes (MMWCNTS) was investigated. The equilibrium adsorption data were analyzed using three widely applied isotherms: Langmuir, Freundlich and Tempkin. The results revealed that Langmuir isotherm fit the experimental results well. Kinetic analyses were conducted using pseudo-first and second-order models and the intraparticle diffusion model. The regression results showed that the adsorption kinetics were more accurately represented by pseudo-second-order model. Standard free energy changes (△G0), standard enthalpy change (△H0), and standard entropy change (△S0) were calculated at different temperatures. The △G0 values were negative and △H0 values and △S0 values of MMWCNTS were positive; and suggested that the AMO adsorption on MMWCNTS was a spontaneous and endothermic process.
Item Type: | Article |
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Subjects: | Eurolib Press > Medical Science |
Depositing User: | Managing Editor |
Date Deposited: | 16 May 2023 05:14 |
Last Modified: | 12 Jan 2024 05:11 |
URI: | http://info.submit4journal.com/id/eprint/1848 |