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Journals / Sakarya University Journal of Science / 2016 / Cilt: 20 Sayı: 3

Adsorption of Zn(II) ıons with polyamine polyurea polymer modified with pyromellitic dianhydride

Zn(II) iyonlarının piromellitik dianhidrit ile modifiye edilmiş poliamin poliüre polimeri ile adsorpsiyonu

Çiğdem ÖZER
Eda Ergin
Füsun Boysan
Mustafa İmamoğlu
Pages
635–644
Publication Date
2016-10-11
DOI
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AI Summary & Key Takeaways

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

Thermodynamic calculations showed that the process is exothermic and occurs spontaneously.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, adsorption of Zn(II) ions from aqueous solutions was investigated using polyamine polyurea polymer modified with pyromellitic dianhydride (PMPPP).
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Key Findings & Data:Maximum adsorption capacity of PMPPP for Zn (II) ions was calculated to be 119.1 mg g-1 according to Langmuir isotherm.
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Conclusion & Impact:Thermodynamic calculations showed that the process is exothermic and occurs spontaneously.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:: Zn(II) · Adsorpsiyon · Arıtma

Abstract

In this study, adsorption of Zn(II) ions from aqueous solutions was investigated using polyamine polyurea polymer modified with pyromellitic dianhydride (PMPPP). The parameters on the adsorption studies such as pH, contact time, PMPPP dose and initial concentration of Zn(II) were studied. The experimental data analyzed using Langmuir and Freundlich isotherm models were showed a higher compliance with the Langmuir isotherm representing the monolayer adsorption. Maximum adsorption capacity of PMPPP for Zn (II) ions was calculated to be 119.1 mg g-1 according to Langmuir isotherm. Adsorption kinetics of Zn(II) ions on PMPPP were found to consistent with second order model. Thermodynamic calculations showed that the process is exothermic and occurs spontaneously.

Özet

Bu çalışmada sulu çözeltilerden Zn(II) iyonlarının piromellitik dianhidrit ile modifiye edilmiş poliamin- poliüre polimeri (PMPPP) üzerine adsorpsiyonu incelenmiştir. Adsorpsiyon çalışmasına etkisi incelenen parametreler; pH, temas süresi, PMPPP dozu, Zn(II) başlangıç konsantrasyonudur. Langmuir ve Freundlich izoterm modelleri kullanılarak analiz edilen Zn(II) adsorpsiyonunun deneysel verileri, tek tabakalı adsorpsiyonu ifade eden Langmuir izotermi ile daha yüksek uyum göstermiştir. Langmuir izotermine göre Zn(II) iyonları için PMPPP’nin maksimum adsorpsiyon kapasitesi 119.1 mg g-1 olarak hesaplanmıştır. PMPPP ile Zn(II) iyonlarının adsorpsiyon kinetiği pseudo ikinci derece modeli ile uyumlu bulunmuştur. Zn(II) adsorpsiyonu için termodinamik hesaplar prosesin ekzotermik ve kendiliğinden gerçekleşme eğiliminde olduğunu göstermiştir.

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Cite This Article

ÖZER, Ç., Ergin, E., Boysan, F., İmamoğlu, M. (2016). Adsorption of Zn(II) ıons with polyamine polyurea polymer modified with pyromellitic dianhydride. Sakarya University Journal of Science, Cilt: 20 Sayı: 3, 635–644. https://ajindex.com/articles/942382

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