Adsorption Behaviors of Oxytetracycline onto Sediment in the Weihe River, Shaanxi, China
Joint Authors
Cheng, Dong-Hui
Yang, Sheng-Ke
Zhao, Yue
Chen, Jing
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-04-11
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Adsorption behaviors of oxytetracycline onto sediment in the Weihe River were described.
The impact factors in the processes of adsorption, such as contact time, solution pH, temperature, and ionic strength, were determined by experiments.
The experimental results were analyzed by kinetic and isotherm models.
The adsorption kinetics was found to follow a pseudo-first-order model.
The equilibrium adsorption data fitted well with the Langmuir and Freundlich isotherm models.
However, the Langmuir isotherm was more suitable to describe the adsorption.
Thermodynamics parameters such as Gibbs-free energy change (ΔG°), enthalpy change (ΔH°), and entropy change (ΔS°) were calculated.
Results showed that the adsorption was feasible, spontaneous, entropy increasing, and endothermic in nature, which reached equilibrium in about 24 hours.
The adsorption capacity did not cause obvious change at solution pH 4.0–7.0, and both decreased in solution pH 7.0–10.0 and 4.0–2.0.
The presence of electrolytes such as NaCl in aqueous solution had a significant negative effect on the adsorption.
The mechanisms controlling the adsorption were supposed to be chemisorption.
American Psychological Association (APA)
Cheng, Dong-Hui& Yang, Sheng-Ke& Zhao, Yue& Chen, Jing. 2013. Adsorption Behaviors of Oxytetracycline onto Sediment in the Weihe River, Shaanxi, China. Journal of Chemistry،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-488489
Modern Language Association (MLA)
Cheng, Dong-Hui…[et al.]. Adsorption Behaviors of Oxytetracycline onto Sediment in the Weihe River, Shaanxi, China. Journal of Chemistry No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-488489
American Medical Association (AMA)
Cheng, Dong-Hui& Yang, Sheng-Ke& Zhao, Yue& Chen, Jing. Adsorption Behaviors of Oxytetracycline onto Sediment in the Weihe River, Shaanxi, China. Journal of Chemistry. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-488489
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488489