Journals / Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi / 2020 / Cilt: 26 - Sayı: 7

Comparison of acid blue 25 adsorption performance on natural andacid-thermal co-modified bentonite: Isotherm, kinetics andthermodynamics studies

Doğal ve asit-termal modifiye bentonit üzerine asit blue 25 adsorpsiyon performansının karşılaştırılması: İzoterm, kinetik ve termodinamik çalışmaları

Pages
1335–1342
Publication Date
2022-10-18
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the results, Freundlich isotherm becomes more convenient model compared with Langmuir and Temkin model.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In the present study, natural bentonite and acid-thermal co-modified bentonite were utilized for Acid Blue 25 (AB25) removal.
📊
Key Findings & Data:The adsorption experiments were executed at the temperature values of 298K, 308K and 318K.
💡
Conclusion & Impact:According to the results, Freundlich isotherm becomes more convenient model compared with Langmuir and Temkin model.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

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 comodified 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.

Özet

Bu çalışmada, Asit Blue 25 (AB25) giderimi için doğal bentonit ve asit termal modifiye edilmiş bentonit kullanıldı. Adsorpsiyon deneyleri298K, 308K ve 318K sıcaklık değerlerinde gerçekleştirildi. Sonuçlaragöre Freundlich izotermi, Langmuir ve Temkin modeline göre dahauygun bir model haline geldi. Freundlich model katsayıları sıcaklıkarttıkça yükseldiği görüldü. Kinetik katsayılar yalancı birinci derece(PFO) ve yalancı ikinci derece (PSO) modelleri ile hesaplandı.Değerlendirilen R2 katsayıları 0.99'dan yüksekti ve birbirine yakındeneysel ve elde edilen qe değerleri bu sürecin PSO kinetik modelineuyduğu açıklandı. 30 ve 80 mg/L başlangıç konsantrasyonun, doğal,asit-termal modifiye edilmiş bentonit ile adsorpsiyon kapasitesinin298 K için sırasıyla 8.36'dan 27.00 mg/g'ye ve 9.30'dan 29.09 mg/g'yeyükseldiği gözlendi. AB25'in serbest enerjisinin doğal ve asit-termalmodifiye edilmiş bentonite karşı mutlak değerleri, sırasıyla4.065 kJ/mol'den 8.586 kJ/mol'e değiştiği belirlendi. AB25'in doğal veasit-termal modifiye edilmiş bentonit üzerindeki entalpi değerleri5.483 kJ/mol'den 11.249 kJ/mol'e ve AB25'in doğal ve asit-termalmodifiye edilmiş bentonit üzerindeki entropi değerleri 4.759 J/molK'den 8.940 J/mol K.'ye değiştiği görüldü. Modifiye edilmiş bentonitin,doğal bentonitten daha yüksek adsorpsiyon kapasitesine sahip olduğubelirlendi.

🔖

Cite This Article

KUL, A. R., ALDEMİR, A. (2022). Comparison of acid blue 25 adsorption performance on natural andacid-thermal co-modified bentonite: Isotherm, kinetics andthermodynamics studies. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 26 - Sayı: 7, 1335–1342. https://ajindex.com/articles/587406

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. Yagub MT, Sen TK, Afroze S, Ang HM. “Dye and its removal from aqueous solution by adsorption: a review”. Advances Colloid Interface Science, 209, 172-84, 2014
  2. Kausar A, Iqbal M, Javed A, Aftab K, Nazli ZH, Bhatti HN, Nouren S. “Adsorption Using Clay and Modified Clay: A Review”. Journal of Molecular Liquids, 256, 395-407, 2018
  3. Yuhao C, Bing T, Liying B, Shaosong H, Ping L, Fenglian F, “Constructing a multi-layer adsorbent for controllably selective adsorption of various ionic dyes from aqueous solution by simply adjusting pH”. Chemical Engineering Journal, 382, 1-13, 2020
  4. Gupta V. K, Suhas. “Application of low-cost adsorbents for dye removal-a review”. Journal of Environmental Management, 90, 2313-2342, 2009
  5. Daneshvar E, Sohrabi MS, Kousha M, Bhatnagar A, Aliakbarian B, Converti A, Norrstro¨me AC. “Shrimp shell as an efficient bioadsorbent for Acid Blue 25 dye removal from aqueous solution”. Journal of the Taiwan Institute of Chemical Engineers, 45, 2926-2934, 2014
  6. Huang Z, Li Y, Chen W, Shi J, Zhang N, Wang X, Li Z, Gao L, Zhang Y. “Modified bentonite adsorption of organic pollutants of dye wastewater”. Materials Chemistry and Physics, 202, 266-276, 2017
  7. Yanbo Z, Jian L, Yi Z, Yongdi L. “Recent advances for dyes removal using novel adsorbents: A review”. Environmental Pollution, 252, 352-365, 2019
  8. Líbia NFQ. Denise BF. Francisco R. Ieda MGS. Maria GF. Maguy J. “Functionalized bentonites for dye adsorption: Depollution and production of new pigments”. Journal of Environmental Chemical Engineering, 7(5), 1-10, 2019
  9. Zhao S, Gao W, Wu H, Deligeer W, Asuha S. “Direct acid activation of bentonite and its effects on the adsorption of methylene blue”. Applied Clay Science, 126, 98-106, 2016
  10. Abdelrahman MA, Shifa MRS, R J, Mona HG, Mustafa SN, Abdelbaki B, Samer A. “Adsorption of organic pollutants by natural and modified clays: A comprehensive review”. Separation and Purification Technology, 228, 1-39, 2019
  11. Benguella B, Yacouta-Nour A. “Adsorption of bezanyl red and nylomine green from aqueous solutions by natural and acid-activated bentonite”. Desalination, 235(1-3), 276-292, 2009
  12. Leodopoulos Ch, Doulia D, Gimouhopoulos K, Triantis T. M. “Single and simultaneous adsorption of methyl orange and humic acid onto bentonite”. Applied Clay Science, 70, 84-90, 2012
  13. Crini G. “Non-conventional low-cost adsorbents for dye removal: A review”. Bioresource Technology, 97(9), 1061-1085, 2006
  14. Tholiso N,