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Journals / Sigma Mühendislik ve Fen Bilimleri Dergisi / 2020 / Cilt: 38 - Sayı: 3

CHROMIUM (Cr(VI)) REMOVAL FROM WATER WITH BENTONITE-MAGNETITE NANOCOMPOSITE USING RESPONSE SURFACE METHODOLOGY (RSM)

Pınar BELİBAĞLI
Buşra Nur ÇİFTCİ
Yağmur Uysal UYSAL
Pages
1217–1233
Publication Date
2021-10-05
DOI
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AI Summary & Key Takeaways

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

Isotherm and kinetic models were calculated to determine the mechanism of adsorption, and obtained results showed that Cr (VI) adsorption by Bentonite-Fe3O4 was more suitable for Tempkin isotherm (R2:0.99) and second-order kinetic model (R2:1).

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, magnetite nanocomposites coated with bentonite were synthesized as adsorbent material and their effects in Cr (VI) adsorption were investigated.
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Key Findings & Data:Magnetite nanomaterials (Bentonite-Fe3O4) were characterized by surface morphology (SEM-EDX) and elemental analyses (FTIR).
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Conclusion & Impact:Isotherm and kinetic models were calculated to determine the mechanism of adsorption, and obtained results showed that Cr (VI) adsorption by Bentonite-Fe3O4 was more suitable for Tempkin isotherm (R2:0.99) and second-order kinetic model (R2:1).
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Adsorption · bentonite · chromium

Abstract

In this study, magnetite nanocomposites coated with bentonite were synthesized as adsorbent material and their effects in Cr (VI) adsorption were investigated. Magnetite nanomaterials (Bentonite-Fe3O4) were characterized by surface morphology (SEM-EDX) and elemental analyses (FTIR). RSM was used to investigate the optimum ambient conditions of parameters for the removal of Cr (VI) ions. Isotherm and kinetic models were calculated to determine the mechanism of adsorption, and obtained results showed that Cr (VI) adsorption by Bentonite-Fe3O4 was more suitable for Tempkin isotherm (R2:0.99) and second-order kinetic model (R2:1). The optimum adsorption efficiency (77.46%) of Cr (VI) ions in 6.5 mg/L concentration was obtained at contact time of 60 min, pH 2.0, adsorbent dosage of 2.5 g/L and at 35 oC.

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Cite This Article

BELİBAĞLI, P., ÇİFTCİ, B. N., UYSAL, Y. U. (2021). CHROMIUM (Cr(VI)) REMOVAL FROM WATER WITH BENTONITE-MAGNETITE NANOCOMPOSITE USING RESPONSE SURFACE METHODOLOGY (RSM). Sigma Mühendislik ve Fen Bilimleri Dergisi, Cilt: 38 - Sayı: 3, 1217–1233. https://ajindex.com/articles/419067

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