Journals / Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi / 2019 / Cilt: 21 - Sayı: 63

Biosorption of Eu(III) onto Narcissus Tazetta L. Leaf Powder

Eu (III) 'un Narcissus Tazetta L. Yaprak Tozu Üzerine Biyosorpsiyonu

Pages
955–966
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

It was found that the material has a significant biosorption capacity for europium in the pH range of 4-7.

📌 3 Key Takeaways

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Objective & Hypothesis:In the present study, biosorption behaviours of novel biosorbent, Narcissus Tazetta L. leaf powder, were investigated for the separation of Eu(III) from aqueous solution.
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Key Findings & Data:The biosorption process is fast, and equilibrium was established in 30 min. of contact time.
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Conclusion & Impact:It was found that the material has a significant biosorption capacity for europium in the pH range of 4-7.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Narcissus Tazetta · Evropyum · Nadir Topraklar

Abstract

In the present study, biosorption behaviours of novel biosorbent, Narcissus Tazetta L. leaf powder, were investigated for the separation of Eu(III) from aqueous solution. Batch experiments were conducted to examine the effect of various parameters such as contact time, initial pH, initial Eu(III) concentration, biosorbent dosage and temperature on the Eu(III) uptake. The biosorption process is fast, and equilibrium was established in 30 min. of contact time. It was found that the material has a significant biosorption capacity for europium in the pH range of 4-7. The results showed that the biosorption data fit Langmuir monolayer isotherm and pseudo-second order kinetic model well. Biosorption capacity of leaf powder was obtained as 122.0 mg g-1 at pH 7. Thermodynamic analysis indicates that the biosorption was spontaneous and endothermic in nature. Desorption efficiency(%) of 97.17 was achieved in single step using 0.1 mol L-1 HNO3 solution. Surface area of the biosorbent and the average pore size were determined as 1.725 mg g-1 and 1.75 nm, respectively. The critical functional groups -CH, C-O, O-H, C=O and COO- which may have taken part for the biosorption were identified by infrared spectra data. It was deduced that N. Tazetta leaf powder can be used as an effective, costless, and eco-friendly biosorbent for the separation and recovery of Eu(III) from aqueous solution.

Özet

Bu çalışmada, yeni bir biyosorbent olan Narcissus Tazetta L. yaprak tozunun sulu çözeltilerden Eu(III) iyonlarının ayrılmasında biyosorpsiyon davranışları incelenmiştir. Eu(III) alımında temas süresi, başlangıç pH’sı, başlangıç Eu(III) derişimi, biyosorbent dozajı ve sıcaklık gibi çeşitli parametrelerin etkisini incelemek için kesikli denemeler yürütülmüştür. Biyosorpsiyon prosesi hızlıdır ve 30 dakikalık temas süresi sonunda dengeye ulaşılmıştır. pH 4-7 aralığında materyalin Eu(III) için önemli bir biyosorpsiyon kapasitesine sahip olduğu bulunmuştur. Biyosorpsiyon verisi Langmuir tek tabaka izotermi ve yalancı ikinci derece kinetik model ile uyum göstermiştir. pH 7’de yaprak tozunun biyosorpsiyon kapasitesi 122.0 mg g-1 olarak bulunmuştur. Termodinamik analiz biyosorpsiyonun kendiliğinden gerçekleştiğini ve endotermik yapıda olduğunu göstermiştir. 0.1 mol L-1 HNO3 çözeltisi ile tek kademede %97.17’lik desorpsiyon verimine ulaşılmıştır. Biyosorbentin yüzey alanı ve ortalama por çapı sırasıyla 1.725 mg g-1 ve 1.75 nm olarak tespit edilmiştir. Biyosorpsiyonda rol almış olabilen -CH, C-O, O-H, C=O ve COO- gibi kritik fonksiyonel gruplar kızıl ötesi spektroskopisi ile aydınlatılmıştır. Sulu çözeltilerden Eu(III) ayrılması ve kazanılmasında N. Tazetta yaprak tozunun etkili, maliyetsiz ve çevre dostu bir biyosorbent olduğu sonucuna varılmıştır.

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Cite This Article

İNAN, S., ÖZKAN, B. (2019). Biosorption of Eu(III) onto Narcissus Tazetta L. Leaf Powder. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi, Cilt: 21 - Sayı: 63, 955–966. https://ajindex.com/articles/222239

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