Cleaning of pesticides from aqueous solution by a newly synthesized organoclay

• Autorzy: Baysal Gülay

Identyfikatory

DOI

10.24425/aep.2019.128637

• Języki publikacji: EN

Abstrakty

EN

In the present study, the novel quaternary ammonium salt (QAS⁺), 1-methyl-di-octyl-1 phenyl ammonium iodide (QAS₁), was synthesized by complete alkylation reaction. Sodium montmorillonite (Mt) was modified via an ion-exchange reaction with QAS₁⁺. The modified material and quarternary ammonium salt (Mt1 and QAS₁) were analyzed by nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Removal capacity of hydrophobic organic pollutants such as 4-nitrophenol (4-NP) and 2,4-dinitrophenol (2,4-DNP) from solution media of synthesized organoclay was evaluated. The optimum conditions and batch kinetics of adsorption of 4-nitrophenol and 2,4-dinitrophenol from aqueous solutions are reported. It was shown that the adsorption capacity decreased in the order 4-NP> 2,4-DNP. The total mass loss during the drying process was 66% and 78%, respectively. Thermodynamic parameters enthalpy (ΔH⁰) and entropy (ΔS⁰) and the mean free energy (E) for the adsorption of nitrophenol compounds (NCP) were determined.

Słowa kluczowe

EN

adsorption isotherms and kinetics; 1-methyl-di-octyl-1 phenyl ammonium iodide; toxic compounds; organoclay

• Wydawca: Institute of Environmental Engineering, Polish Academy of Sciences
• Czasopismo: Archives of Environmental Protection
• Rocznik: 2019
• Tom: Vol. 45, no. 3
• Strony: 21--30
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Baysal Gülay

• Istanbul Aydın University, Istanbul, Turkey

Bibliografia

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