The Influence of Structural Parameters of Georgian Natural and Modified Mordenite over its Adsorption Properties Towards Lead Ions

• Autorzy: Gagniashvili Nino , Akhalbedashvili Lali

Identyfikatory

DOI

10.12911/22998993/169184

• Języki publikacji: EN

Abstrakty

EN

The potential of Georgian natural Mordenite has been studied as a low-cost, eco-friendly adsorbent for the removal of lead (II) ions from aqueous solutions in various experimental environments. The natural and modified Mordenite structural characterization was carried out using XRD, SEM-EDS, XRF, methods. The following parameters were studied for adsorption: dependence of solution pH, adsorbent dose, and initial concentration of lead (II) ions. The results of the optimization study showed that a high dose of adsorbent and a low concentration of Pb (II) ion increase the sorption. The optimum pH was found to be 6-8. Sorption capacity increased along with pH. Langmuir and Freundlich isotherms were used to model the adsorption data. Correlation coefficient values (R²) were 0.975 and 0.922, respectively. Isotherm studies showed that the uptake equilibrium is best described by the Langmuir adsorption isotherm. The maximum sorption capacity was found to be 11.439 mg/g. The research results showed that natural Georgian Mordenite can be used to remove Pb (II) ions from aqueous solutions.

Słowa kluczowe

EN

mordenite; structural parameter; adsorption; lead; solution

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2023
• Tom: Vol. 24, nr 9
• Strony: 130--138
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Gagniashvili Nino

• Department of Physical and Analytical Chemistry, Faculty of Exact and Natural Sciences, Tbilisi State University, 1, Chavchavadze av. 0179, Tbilisi, Georgia

• https://orcid.org/0009-0007-0427-9423

autor

Akhalbedashvili Lali

• Department of Physical and Analytical Chemistry, Faculty of Exact and Natural Sciences, Tbilisi State University, 1, Chavchavadze av. 0179, Tbilisi, Georgia

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