Examining the Properties of Natural Hoeullandite Zeolite of Qom Mines in the removal of Methylene Blue and Methyl Orange Dyes in Aqueous Solutions

Document Type : Research Article

Author

Department of Chemistry, Faculty of Sciences, University of Qom, Qom, Iran.

10.22091/jaem.2025.12148.1019

Abstract

This study evaluates the effectiveness of natural absorbents to remove some of the pollutants in water. In this study, after sampling and preparation of natural zeolite Heulandite, treatment process of some pollutants such as methylene blue and methyl orange from aqueous solutions was performed. Heulandite detection was investigated by XRD, XRF and ICP. In this analysis, the formula of Heulandite zeolite has been determined to be as: Cal.23(Al2Si7)O18.6H2O and CaAl2Si7O18.6H2O. The main components of this mineral sample are Heulandite zeolites. Removal of dyes contaminants was determined by Uv/Visible spectroscopy. Measurements were performed at a wavelength of 665.0 and 465.0 nm for methylene blue and methyl orange, respectively. The results indicate that removal of 100 and 43.7 percent of methylene blue and methyl orange after treatment with Heulandite, respectively. As the methylene blue dye is a cationic dye, this zeolite was able to remove almost 100% of the dye from the solution The result shows that cationic methylene blue dye is able to save the energy consumption for the purification process.

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Advances in Energy and Materials Research

Articles in Press, Accepted Manuscript
Available Online from 28 September 2024

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