REMOVAL OF RHODAMINE FROM AQUEOUS SOLUTIONS USING NATURAL ZEOLITE

Lacrimioara SENILA; Emilia NEAG; Daniela Alexandra SCURTU; Oana CADAR; Anca BECZE; Calin Horea TOMOIAG; Marin SENILA

doi:10.24193/subbchem.2021.2.15

REMOVAL OF RHODAMINE FROM AQUEOUS SOLUTIONS USING NATURAL ZEOLITE

Authors

Lacrimioara SENILA INCDO-INOE 2000, Research Institute for Analytical Instrumentation, Donath 67, 400293, Cluj-Napoca, Romania. https://orcid.org/0000-0002-5791-0449
Emilia NEAG INCDO-INOE 2000, Research Institute for Analytical Instrumentation, Donath 67, 400293, Cluj-Napoca, Romania. https://orcid.org/0000-0002-1223-1637
Daniela Alexandra SCURTU INCDO-INOE 2000, Research Institute for Analytical Instrumentation, Donath 67, 400293, Cluj-Napoca, Romania. https://orcid.org/0000-0002-5941-1213
Oana CADAR INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania. https://orcid.org/0000-0002-0879-9211
Anca BECZE INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania. https://orcid.org/0000-0003-1418-689X
Calin Horea TOMOIAG Tomas Prodimpex SRL,18 B-dul Eroilor Street, Cluj-Napoca, Romania.
Marin SENILA INCDO-INOE 2000, Research Institute for Analytical Instrumentation, Donath 67, 400293, Cluj-Napoca, Romania. *Corresponding author: marin.senila@icia.ro https://orcid.org/0000-0001-6738-6356

DOI:

https://doi.org/10.24193/subbchem.2021.2.15

Keywords:

zeolites, rhodamine B, thermal activation.

Abstract

The aim of this study was to evaluate the adsorption of rhodamine B (RB) from synthetic water using natural zeolites from Romania. The adsorption capacity of zeolite for RB removal was improved by heat treatment at 200, 400 and 600 °C. The chemical and structural characterization of untreated and thermally treated zeolites was performed using advanced techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) analysis. The adsorption behavior of RB on activated zeolites was studied using Langmuir, Freundlich and Dubinin-Radushkevich isotherms. The thermally treated zeolite at 200°C gave the highest adsorption efficiency (97.9%) for RB adsorption from aqueous solutions. According to the obtained results, it can be concluded that thermally treated zeolite can be used as an effective adsorbent for the removal of RB from wastewater.

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STUDIA UBB CHEMIA, Volume 66 (LXVI), No. 2, June 2021

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Published

2021-06-30

How to Cite

SENILA, L., NEAG, E., SCURTU, D. A., CADAR, O., BECZE, A., TOMOIAG, C. H., & SENILA, M. (2021). REMOVAL OF RHODAMINE FROM AQUEOUS SOLUTIONS USING NATURAL ZEOLITE. Studia Universitatis Babeș-Bolyai Chemia, 66(2), 171–180. https://doi.org/10.24193/subbchem.2021.2.15