Preparation, Characterization, and Applications of Nano Manganese Oxide via Combustion Synthesis for Water Treatment

Document Type : Original Research Papers

Authors

Benha university

10.21608/bjas.2025.373358.1694

Abstract

The presence of dyes in water streams poses a significant environmental challenge due to their harmful effects on living organisms and ecosystems. This study aims to evaluate the effectiveness of manganese oxide nanoparticles (Mn2O3), synthesized via an optimized urea-assisted combustion method, for the treatment of water contaminated with Sunset Yellow dye. The synthesized nanoparticles were characterized using advanced techniques such as X-Ray Diffractometry (XRD) to determine their crystal structure and Fourier Transform Infrared Spectroscopy (FTIR) to identify the functional groups on their surface, providing a comprehensive understanding of their physicochemical properties.

The efficiency of Sunset Yellow dye removal using these nanoparticles was assessed under various conditions, with initial results demonstrating a remarkable removal efficiency of 98.2% at a pH of 2 and within a contact time of 90 minutes. Furthermore, the impact of other factors, including the initial dye concentration and contact time, on the adsorption process was investigated to determine the optimal conditions for effective removal.

To elucidate the underlying mechanism of the removal process, the study explored the adsorption kinetics and isotherm models to identify the nature of the interactions between the dye and the nanoscale surface and to determine the maximum adsorption capacity. The obtained results indicate that the manganese oxide nanoparticles synthesized through the urea-assisted combustion method exhibit promising potential as an efficient and cost-effective adsorbent for the removal of Sunset Yellow dye from polluted water, contributing to the development of sustainable solutions for water treatment.

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Benha Journal of Applied Sciences
Volume 10, Issue 2 - Serial Number 2
Applied and Basic Sciences:
February 2025
Pages 127-135

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