Application of response surface methodology to optimize the process variables for fluoride ion removal using maghemite nanoparticles
Author
Source
Journal of Saudi Chemical Society
Issue
Vol. 18, Issue 4 (30 Sep. 2014), pp.340-347, 8 p.
Publisher
Publication Date
2014-09-30
Country of Publication
Saudi Arabia
No. of Pages
8
Main Subjects
Topics
Abstract EN
Adsorption of fluoride ion was done from its aqueous solution by using maghemite (c-Fe2O3) nanoparticles.
Effects of the major independent variables (temperature, adsorbent dose and pH) and their interactions during fluoride ion adsorption were determined by response surface methodology (RSM) based on three-level three-factorial Box–Behnken design (BBD).
Optimized values of temperature, maghemite nanoparticle dose and pH for fluoride sorption were found as 313 K, 0.5 g / L, and 4, respectively.
In order to investigate the mechanism of fluoride removal, various adsorption isotherms such as Langmuir, Freundlich, Temkin and Florry–Huggins were fitted.
The experimental data revealed that the Langmuir isotherm gave a more satisfactory fit for fluoride removal.
The adsorption process was rapid and obeyed pseudo-second-order kinetics.
The values of thermodynamic parameters DG , DH and DS indicated that adsorption was spontaneous and endothermic in nature.
American Psychological Association (APA)
Fakhri, Ali. 2014. Application of response surface methodology to optimize the process variables for fluoride ion removal using maghemite nanoparticles. Journal of Saudi Chemical Society،Vol. 18, no. 4, pp.340-347.
https://search.emarefa.net/detail/BIM-388619
Modern Language Association (MLA)
Fakhri, Ali. Application of response surface methodology to optimize the process variables for fluoride ion removal using maghemite nanoparticles. Journal of Saudi Chemical Society Vol. 18, no. 4 (Sep. 2014), pp.340-347.
https://search.emarefa.net/detail/BIM-388619
American Medical Association (AMA)
Fakhri, Ali. Application of response surface methodology to optimize the process variables for fluoride ion removal using maghemite nanoparticles. Journal of Saudi Chemical Society. 2014. Vol. 18, no. 4, pp.340-347.
https://search.emarefa.net/detail/BIM-388619
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 246-247
Record ID
BIM-388619