Journals / Türk Biyokimya Dergisi / 2018 / Cilt: 43 - Sayı: 6

Adsorption of methyl violet from aqueous solution using brown algae Padina sanctae-crucis

Metil violetin sulu çözeltiden, kahve rengi alg, Padina sanctae-crucis kullanılarak emilimi

Pages
623–631
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Besides, experimentaldata have been modeled using Langmuir and Freundlichisotherms and the results showed that both models areproper to describe adsorption isotherm behavior.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: The presence of dyes in the water is toxic andharmful to human body so, it must be removed from thewater.
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Key Findings & Data:In the present study, the removal of methyl violet(MV) from aqueous solutions using brown algae “Padinasanctae-crucis” was investigated.Materials and methods: The rate of adsorption was investigatedunder various parameters such as contact time (5–200), pH (2–11), dye concentration (10–60 mg/L), amountof adsorbent (0.25–5 g/L) and temperature (25–45°C).Results: The maximum adsorption was achieved in 10 mg/L,pH = 8 and adsorbent dose 2 g/L and 80 min contact timefor removal of MV from aqueous solutions.
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Conclusion & Impact:Besides, experimentaldata have been modeled using Langmuir and Freundlichisotherms and the results showed that both models areproper to describe adsorption isotherm behavior.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: The presence of dyes in the water is toxic andharmful to human body so, it must be removed from thewater. In the present study, the removal of methyl violet(MV) from aqueous solutions using brown algae “Padinasanctae-crucis” was investigated.Materials and methods: The rate of adsorption was investigatedunder various parameters such as contact time (5–200), pH (2–11), dye concentration (10–60 mg/L), amountof adsorbent (0.25–5 g/L) and temperature (25–45°C).Results: The maximum adsorption was achieved in 10 mg/L,pH = 8 and adsorbent dose 2 g/L and 80 min contact timefor removal of MV from aqueous solutions. Kinetic studiesshowed that the pseudo second-order model describesadsorbent kinetic behavior better. Besides, experimentaldata have been modeled using Langmuir and Freundlichisotherms and the results showed that both models areproper to describe adsorption isotherm behavior. In addition,the equilibrium study shows that the adsorption wasphysical and favorable. Moreover, a thermodynamic studyrevealed that the adsorption process is exothermic andspontaneously in nature. Furthermore, Maximum adsorptioncapacity using adsorbent was 10.02 mg/g.Conclusions: It could be concluded that the P. sanctaecrucisbiomass is a good adsorbent for removing MV dyesfrom aqueous solutions.

Özet

Amaç: Sudaki boya maddeleri toksik olup insan sağlığına zararlıdır, bu yüzden sudan uzaklaştırılmalıdırlar. Bu çalışmada, kahverengi alg „Padina sanctae-crucis“ kullanılarak sulu solüsyonlardan Metil Viyole (MV) emilimi araştırılmıştır. Malzemeler ve yöntemler: Adsorpsiyon hızı farklı koşullarda: temas süresi (5–200), pH (2–11), boya konsantrasyonu (10–60 mg/L), adsorban miktarı (0.25–5 g/L) ve sıcaklık (25–45°C) araştırılmıştır. Bulgular: MV’nin sulu çözeltilerden çıkarılması için maksimum adsorpsiyon, 10 mg/L, pH = 8 ve adsorbent dozu 2 g/L ve 80 dakika temas süresinde sağlandı. Kinetik çalışmalar, pesedo ikinci derece modelin adsorbent kinetik davranışı daha iyi açıkladığını gösterdi. Ayrıca Langmuir ve Freundlich izotermlerini kullanarak deneysel veriler modellendi ve sonuçlar her iki modelin de adsorpsiyon izoterm davranışını tanımlamak için uygun olduğunu gösterdi. Buna ek olarak, denge çalışması, adsorpsiyonun fiziksel ve olumlu olduğunu göstermektedir. Dahası, termodinamik bir çalışmada adsorpsiyon prosesinin egzotermik ve doğal olarak kendiliğinden olduğu belirlenmiştir. Adsorban kullanılarak elde edilen maksimum adsorpsiyon kapasitesi 10.02 mg/g dır. Sonuç: Padina sanctae-crucis biyokütlesinin, MV’yi sulu solüsyonlardan uzaklaştırmak için iyi bir adsorban olduğu sonucuna varılmıştır.

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Cite This Article

ESMAEİLİ, H., MAHINI, R., FOROUTAN, R. (2022). Adsorption of methyl violet from aqueous solution using brown algae Padina sanctae-crucis. Türk Biyokimya Dergisi, Cilt: 43 - Sayı: 6, 623–631. https://ajindex.com/articles/620934

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