EN
Comparison of acid blue 25 adsorption performance on natural and acid-thermal co-modified bentonite: Isotherm, kinetics and thermodynamics studies
Abstract
In the present study, natural bentonite and acid-thermal co-modified bentonite were utilized for Acid Blue 25 (AB25) removal. The adsorption experiments were executed at the temperature values of 298K, 308K and 318K. According to the results, Freundlich isotherm becomes more convenient model compared with Langmuir and Temkin model. Freundlich model coefficients rise when the temperature increases. Kinetic coefficients were calculated by pseudo first order (PFO) and pseudo second order (PSO) models. Coefficients of R2 evaluated were higher than 0.99 with experimental and obtained qe values close to each other explained that this process fits PSO kinetic model. The concentration of AB25 elevates from 30 to 80 mg/L adsorption capacity onto natural, acid-thermal co-modified bentonite increases from 8.36 to 27.00 mg/g and 9.30 to 29.09 mg/g for 298 K, respectively. Absolute values of free energy of AB25 onto natural and acid-thermal co-modified bentonite changes from 4.065 kJ/mol to 8.586 kJ/mol, respectively. Enthalpy values of AB25 onto natural and acid-thermal co-modified bentonite changes from 5.483 kJ/mol to 11.249 kJ/mol and entropy values of AB25 on natural and acid-thermal co-modified bentonite changes from 4.759 J/mol K to 8.940 J/mol K, respectively. It was also found that modified bentonite has higher adsorption capacity than natural bentonite.
Keywords
References
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Details
Primary Language
English
Subjects
Engineering
Journal Section
Research Article
Publication Date
December 7, 2020
Submission Date
December 29, 2019
Acceptance Date
-
Published in Issue
Year 2020 Volume: 26 Number: 7
APA
Aldemir, A., & Kul, A. R. (2020). Comparison of acid blue 25 adsorption performance on natural and acid-thermal co-modified bentonite: Isotherm, kinetics and thermodynamics studies. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, 26(7), 1335-1342. https://izlik.org/JA83PZ82FE
AMA
1.Aldemir A, Kul AR. Comparison of acid blue 25 adsorption performance on natural and acid-thermal co-modified bentonite: Isotherm, kinetics and thermodynamics studies. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi. 2020;26(7):1335-1342. https://izlik.org/JA83PZ82FE
Chicago
Aldemir, Adnan, and Ali Rıza Kul. 2020. “Comparison of Acid Blue 25 Adsorption Performance on Natural and Acid-Thermal Co-Modified Bentonite: Isotherm, Kinetics and Thermodynamics Studies”. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi 26 (7): 1335-42. https://izlik.org/JA83PZ82FE.
EndNote
Aldemir A, Kul AR (December 1, 2020) Comparison of acid blue 25 adsorption performance on natural and acid-thermal co-modified bentonite: Isotherm, kinetics and thermodynamics studies. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi 26 7 1335–1342.
IEEE
[1]A. Aldemir and A. R. Kul, “Comparison of acid blue 25 adsorption performance on natural and acid-thermal co-modified bentonite: Isotherm, kinetics and thermodynamics studies”, Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, vol. 26, no. 7, pp. 1335–1342, Dec. 2020, [Online]. Available: https://izlik.org/JA83PZ82FE
ISNAD
Aldemir, Adnan - Kul, Ali Rıza. “Comparison of Acid Blue 25 Adsorption Performance on Natural and Acid-Thermal Co-Modified Bentonite: Isotherm, Kinetics and Thermodynamics Studies”. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi 26/7 (December 1, 2020): 1335-1342. https://izlik.org/JA83PZ82FE.
JAMA
1.Aldemir A, Kul AR. Comparison of acid blue 25 adsorption performance on natural and acid-thermal co-modified bentonite: Isotherm, kinetics and thermodynamics studies. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi. 2020;26:1335–1342.
MLA
Aldemir, Adnan, and Ali Rıza Kul. “Comparison of Acid Blue 25 Adsorption Performance on Natural and Acid-Thermal Co-Modified Bentonite: Isotherm, Kinetics and Thermodynamics Studies”. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, vol. 26, no. 7, Dec. 2020, pp. 1335-42, https://izlik.org/JA83PZ82FE.
Vancouver
1.Adnan Aldemir, Ali Rıza Kul. Comparison of acid blue 25 adsorption performance on natural and acid-thermal co-modified bentonite: Isotherm, kinetics and thermodynamics studies. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi [Internet]. 2020 Dec. 1;26(7):1335-42. Available from: https://izlik.org/JA83PZ82FE