Abstract
This work reports the preparation of manganese and cupper Hybrid Oxide nanocomposites by a green synthesis method. The material was characterized by X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), and Transmission Electron Microscopy (TEM). Brunauer–Emmett–Teller (BET) surface area measurements The synthesized materials were examined for their dye adsorption performance through the removal of basic methylene blue (MB) as a model compound from water. Various adsorption parameters were investigated, such as adsorbent dosage, contact time, solution pH, and temperature. Mesoporous MnCuO2 nanocomposites displayed satisfactory results, with rapid adsorption occurring and the use of low-concentration sorbents and contact times [60] within 60 minutes. Analysis of the adsorption behavior showed a good fit with the Freundlich (R2 = 0.9761, P<0.05) and Temkin isotherms, and also with a pseudo-second-order kinetic model (R2 = 0.9998). This was followed by detailed thermodynamic studies that corroborated these findings. This study will provide new insights into the utilization of copper–manganese dioxide nanocomposites as a promising candidate for the highly efficient removal of methylene blue dye.
Keywords
Adsorption, Methylene blue dye, (MnCuO2) Nanocomposite, Water pollution, Thermodynamic and kinetic study
Subject Area
Chemistry
Article Type
Article
First Page
2496
Last Page
2508
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite this Article
Hassan, Sara Mohammed and Farhan, Ahlam M.
(2026)
"Methylene Blue Dye Removal in Aqueous Solution Using Synthesized MnCuO2 Nanocomposite: Thermodynamic and Kinetic Studies,"
Baghdad Science Journal: Vol. 23:
Iss.
7, Article 11.
DOI: https://doi.org/10.21123/2411-7986.5355
