INVESTIGATION OF Mn-DOPED LAYERED DOUBLE HYDROXIDE CATALYSTS FOR THE TREATMENT OF METHYLENE BLUE-CONTAMINATED WASTEWATER
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DOI:
https://doi.org/10.34238/tnu-jst.13846Abstract
In this study, Mg–Al layered double hydroxides modified with manganese nanoparticles were successfully synthesized via a co-precipitation route and subsequently evaluated for their catalytic performance in the degradation of methylene blue. The structural and morphological characteristics of the synthesized materials were thoroughly characterized using X-ray diffraction and scanning electron microscopy, which confirmed the successful synthesis of the investigated material. The effect of varying manganese nanoparticle loadings on the catalytic efficiency was systematically investigated using an advanced oxidation system comprising bicarbonate and hydrogen peroxide. Among the different formulations tested, the material prepared with a molar ratio of Mg:Al:Mn = 0.15:0.05:12.5×10−4 exhibited the highest removal efficiency, achieving over 90% degradation of methylene blue within 35 minutes. Additionally, the catalyst demonstrated remarkable stability, maintaining consistent performance across at least six consecutive reaction cycles. The catalytic role of manganese-modified Mg–Al layered double hydroxides is clearly demonstrated by the experimental results obtained in this study, indicating their strong potential for application in the treatment of wastewater containing organic dyes from the textile dyeing industry.Downloads
References
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