Removal of Nitrate Ion from Aqueous Solution using Octa Decyl Amine Modified Montmorillonite Nanoclay

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Enkari Mehdad; Ebrahimi Aghamasjed Elham

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Paper Information

Journal: JOURNAL OF ENVIRONMENT AND WATER ENGINEERING Year:2019 | Volume:4 | Issue:4 Page(s): 286-298

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Title

Removal of Nitrate Ion from Aqueous Solution using Octa Decyl Amine Modified Montmorillonite Nanoclay

Author(s)

Enkari Mehdad | Ebrahimi Aghamasjed Elham | Issue Writer Certificate

Keywords

Octadecylamine

Adsorption

Aqueous Solution

Nanoclay

Nitrate Ion

Abstract

The purpose of this study was to remove Nitrate Ion using montmorillonites Nanoclay modified with octa decy lamine functional group. In this study, Nanoclay was first modified using octa decyl amine and the size and surface properties of this modified nanoparticle was investigated by scanning electron microscopy (SEM) and X-ray diffraction spectrum (XRD). In the next step, the Nitrate Ion Adsorption process was investigated using Adsorption model and by examining the effect of parameters of contact time, Nitrate Ion concentration, pH, and, adsorbent dosage on nitrate removal. Adsorption rate was evaluated by atomic absorption spectroscopy. The results showed that the correction of the Nanoclay surface modified by the amine group increased the interlayer spacing from 7. 58 to 22. 91  A. The size of the modified nanoparticles was about 80-100 nm, which increased the active adsorbing sites by increasing nanoadsorbent surface. In the study of Adsorption of Nitrate Ions, the maximum Adsorption achieved at pH 5, the initial concentration of 100 mg/l, the contact time of 40 min, and 0. 7 g of nanoadsorbent. Studing the equilibrium isotherms, it was found that the Adsorption process follows Langmuir and Freundlich isotherms. The kinetics of this process are consistent with the second-order kinetic model.

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APA: Copy

Enkari, Mehdad, & Ebrahimi Aghamasjed, Elham. (2019). Removal of Nitrate Ion from Aqueous Solution using Octa Decyl Amine Modified Montmorillonite Nanoclay. JOURNAL OF ENVIRONMENT AND WATER ENGINEERING, 4(4 ), 286-298. SID. https://sid.ir/paper/268817/en

Vancouver: Copy

Enkari Mehdad, Ebrahimi Aghamasjed Elham. Removal of Nitrate Ion from Aqueous Solution using Octa Decyl Amine Modified Montmorillonite Nanoclay. JOURNAL OF ENVIRONMENT AND WATER ENGINEERING[Internet]. 2019;4(4 ):286-298. Available from: https://sid.ir/paper/268817/en

IEEE: Copy

Mehdad Enkari, and Elham Ebrahimi Aghamasjed, “Removal of Nitrate Ion from Aqueous Solution using Octa Decyl Amine Modified Montmorillonite Nanoclay,” JOURNAL OF ENVIRONMENT AND WATER ENGINEERING, vol. 4, no. 4 , pp. 286–298, 2019, [Online]. Available: https://sid.ir/paper/268817/en

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