Journals / Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi / 2018 / Cilt: 24 - Sayı: 7

Comparison of adsorption of acid orange II dye on chitosan and zirconium(IV)-chitosan

Asit turuncu II boyasının kitosan ve zirkonyum(IV)-kitosan üzerine adsorpsiyonunun karşılaştırılması

Pages
1298–1303
Publication Date
2018-12-28
DOI
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AI Summary & Key Takeaways

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

The synthesized Zr(IV)-Cht composite was found as the high adsorption capacity, low-cost and non-toxic material for T-II adsorption and can be used for dye adsorption.

📌 3 Key Takeaways

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Objective & Hypothesis:To increase the adsorption capacity of chitosan (Cht), which is an abundant biopolymer, zirconium (IV)-chitosan (Zr(IV)-Cht) composite was synthesized and adsorption capacity was compared with Cht using acid orange II (T-II).
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Key Findings & Data:The maximum adsorption capacities were found as 256.41 mg/g and 666.67 mg/g for Cht and Zr(IV)-Cht, respectively.
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Conclusion & Impact:The synthesized Zr(IV)-Cht composite was found as the high adsorption capacity, low-cost and non-toxic material for T-II adsorption and can be used for dye adsorption.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Zirkonyum · Kitosan · Asit turuncu II

Abstract

To increase the adsorption capacity of chitosan (Cht), which is an abundant biopolymer, zirconium (IV)-chitosan (Zr(IV)-Cht) composite was synthesized and adsorption capacity was compared with Cht using acid orange II (T-II). Batch studies were conducted to analyze the effect of Zr (IV) loading amount, solution pH, adsorbent dosage, contact time and temperature on T-II adsorption. The best responding isotherm model to the experimental data was found Langmuir adsorption isotherm model by analyzing Langmuir, Freundlich and Temkin isotherm models. The maximum adsorption capacities were found as 256.41 mg/g and 666.67 mg/g for Cht and Zr(IV)-Cht, respectively. Application of kinetic data to the pseudo-first order and pseudo-second order kinetic models, pseudo-second order model was the best-fitted model for the kinetic data. The adsorption process was found endothermic and spontaneously occurred for both Cht and Zr(IV)-Cht. According to adsorption/desorption experiments, after seventh cycle adsorption capacities were found 65% for Cht and 95% for Zr(IV)-Cht. The synthesized Zr(IV)-Cht composite was found as the high adsorption capacity, low-cost and non-toxic material for T-II adsorption and can be used for dye adsorption.

Özet

Yaygın olarak kullanılan bir biyopolimer olan kitosanın (Cht) adsorpsiyon kapasitesini arttırmak amacıyla zirkonyum (IV)-kitosan (Zr(IV)-Cht) kompoziti sentezlenmiş ve asit turuncu II (T-II) sentetik boyası kullanılarak Cht ile adsorpsiyon kapasiteleri karşılaştırılmıştır. Kesikli sistemde yapılan denemelerde Zr(IV) miktarı, çözelti pH’ı, adsorban miktarı, temas süresi ve sıcaklıklığın T-II adsorpsiyonuna olan etkileri incelenmiştir. Langmuir, Freundlich ve Temkin izoterm modelleri denenerek elde edilen deneysel verilere en uygun cevap veren izoterm modelinin Langmuir izoterm modeli olduğu bulunmuştur. Maksimum adsorpsiyon kapasiteleri sırasıyla Cht için 256.41 mg/g ve Zr(IV)/Cht için 666.67 mg/g olarak bulunmuştur. Kinetik veriler yalancı-birinci dereceden ve yalancı-ikinci dereceden kinetik modellerine uygulandığında yalancı-ikinci dereceden kinetik modelinin en uygun olduğu sonucuna varılmıştır. Termodinamik veriler ışığında, T-II adsorpsiyonunun hem Cht, hem de Zr(IV)/Cht için endotermik olarak kendiliğinden gerçekleşen bir işlem olduğu belirlenmiştir. Adsorpsiyon/desorpsiyon denemelerinde yedinci döngü sonunda Cht’ın adsorpsiyon kapasitesi %65, Zr(IV)-Cht’ın adsorpsiyon kapasitesinin %95 olduğu bulunmuştur. T-II adsorpsiyonu için sentezlenen Zr(IV)-Cht kompoziti yüksek adsorpsiyon kapasitesine sahip, ucuz ve toksik olmayan bir adsorban olarak boya gideriminde kullanılabileceği sonucuna varılmıştır.

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Cite This Article

DEMİRÇİVİ, P. (2018). Comparison of adsorption of acid orange II dye on chitosan and zirconium(IV)-chitosan. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 24 - Sayı: 7, 1298–1303. https://ajindex.com/articles/39479

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