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Journals / Düzce Üniversitesi Bilim ve Teknoloji Dergisi / 2019 / Cilt: 7 - Sayı: 1

Determination of Adsorption Parameters in Removal of Methylene Blue from Aqueous Solution Using Activated Zeolite and Polyvinylpyrrolidone

Aktifleştirilmiş Zeolit ve Polivinilprolidon Kullanılarak Sulu Çözeltiden Metilen Mavisinin Giderilmesinde Adsorpsiyon Parametrelerinin Belirlenmesi

Neslihan DURANAY
Filiz KAR
Melek YILGIN
Pages
1–14
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

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

The adsorption enthalpy was determined as 14.32kJ/mol.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, the use of natural zeolite, activated zeolite and Polyvinylpyrrolidone (PVP) as adsorbent was investigated to remove methylene blue (MM) from aqueous solutions.
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Key Findings & Data:Natural zeolite; KOH, NaOH, HCl, purified water, H3PO4 and H3BO3 were activated.
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Conclusion & Impact:The adsorption enthalpy was determined as 14.32kJ/mol.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Zeolit · Metilen Mavisi · Adsorpsiyon İzotermi

Abstract

In this study, the use of natural zeolite, activated zeolite and Polyvinylpyrrolidone (PVP) as adsorbent was investigated to remove methylene blue (MM) from aqueous solutions. Natural zeolite; KOH, NaOH, HCl, purified water, H3PO4 and H3BO3 were activated. In the experiments using zeolite washed with pure water and activated at 400 oC, the highest adsorption efficiency was reached. The equilibrium data obtained at the end of the adsorption process at different temperatures were applied to Lanmuir, Freundlich, Temkin and Harkins Jura models and the model parameters were calculated. Accordingly, it was determined that the model representing the best adsorption was Langmuir and the adsorption entalps was 12.70 kJ / mol. In the experiments with PVP, Langmuir was the model that best represents the adsorption. The adsorption enthalpy was determined as 14.32kJ/mol.

Özet

Bu çalışmada, sulu çözeltilerden metilen mavisinin (MM) giderilmesi için adsorban olarak doğal zeolit (DZ) ve aktifleştirilmiş zeolit (AZ) ile polivinil prolidonun (PVP) kullanımı araştırılmıştır. Doğal zeolit; KOH, NaOH, HCI, saf su, H3P04 ve H3BO3 ile aktive edilmiştir. Saf su kullanılarak yıkanan ve 400 oC’de aktive edilen zeolitin kullanıldığı deneylerde en yüksek adsorpsiyon verimine ulaşılmıştır. Farklı sıcaklıklarda adsorpsiyon işleminin sonunda elde edilen denge verileri Langmuir, Freundlich, Temkin ve Harkins Jura modellerine uygulanmış ve model parametreleri hesaplanmıştır. Buna göre adsorpsiyonu en iyi temsil eden modelin Langmuir olduğu ve adsorpsiyon entalpisinin 12.70 kJ/mol olduğu tespit edilmiştir. PVP ile yapılan deneylerde de adsorpsiyonu en iyi temsil eden modelin Langmuir olduğu görülmüştür. Adsorbent olarak PVP’nin kullanıldığı adsorpsiyon işleminde adsorpsiyon entalpisi 14.32 kJ/mol olarak belirlenmiştir.

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Cite This Article

DURANAY, N., KAR, F., YILGIN, M. (2022). Determination of Adsorption Parameters in Removal of Methylene Blue from Aqueous Solution Using Activated Zeolite and Polyvinylpyrrolidone. Düzce Üniversitesi Bilim ve Teknoloji Dergisi, Cilt: 7 - Sayı: 1, 1–14. https://ajindex.com/articles/494387

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