Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Amine Modified Magnetic Diatomite Particles as an Effcicent Adsorbent for Pecticide Removal

Version 1 : Received: 8 July 2021 / Approved: 13 July 2021 / Online: 13 July 2021 (10:03:15 CEST)
Version 2 : Received: 14 July 2021 / Approved: 14 July 2021 / Online: 14 July 2021 (09:56:30 CEST)

How to cite: Alacabey, İ. Amine Modified Magnetic Diatomite Particles as an Effcicent Adsorbent for Pecticide Removal. Preprints 2021, 2021070287 (doi: 10.20944/preprints202107.0287.v2). Alacabey, İ. Amine Modified Magnetic Diatomite Particles as an Effcicent Adsorbent for Pecticide Removal. Preprints 2021, 2021070287 (doi: 10.20944/preprints202107.0287.v2).

Abstract

Pesticides are one of the most critical emerging contaminants which are highly toxic for the environment and have potential risk to human health. In this study, surface-modified magnetic diatomite particles (m-DE-APTES) have been suc-cessfully synthesized and used as a sorbent for the removal of endosulfan from an aqueous solution. Magnetic diatomite particles with surface modification were characterized by Fourier transform-infrared spectroscopy (FT-IR), scan-ning electron microscopy (SEM), energy dispersive X-ray (EDX), electron spin resonance (ESR), and surface area measurements. Characterization results sug-gest that magnetic diatomite has a high surface area and porous structure. In addition, m-DE-APTES has higher adsorption capacity (97.2 mg/g) for en-dosulfan pesticide than unmodified diatomite particles (DE) (16.6 mg/g). The adsorption data fit the Langmuir model (R2=0.9905), and the adsorption process took place spontaneously with the values of ΔGo as -2.576. In conclusion, the surface-modified diatomite particles are promising alternative adsorbents for pesticide removal from aqueous solutions.

Subject Areas

Adsorption isotherms; endosulfan; Magnetic diatomite; pesticide; silane.

Comments (1)

Comment 1
Received: 14 July 2021
Commenter: ihsan Alacabey
Commenter's Conflict of Interests: Author
Comment: Some reference additions have been made and marked in yellow.
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