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Synthesis of Metallic Silver Supported by Metal Oxides (Fe2O3 and CoO) for the Removal of Methylene Blue in the Presence of Sunlight

The aim of this study was to evaluate and compare the effectiveness of the combination of silver nanoparticles (Ag NPs) and two metal oxides (Fe2O3 and CoO) for the removal of methylene blue (MB) molecules from aqueous solutions. To achieve this purpose, Silver (Ag) nanoparticles were successfully deposited onto metal oxides (Fe2O3 and CoO) nanocomposites, which were employed as adsorbents and photocatalysts. The prepared photocatalysts (Ag/Fe2O3 and Ag/CoO) were used for the absorption of methylene blue, an organic pollutant. Various analytical techniques such as Field Emission Scanning Electron Microscope (FESEM), Energy Dispersive X-ray (EDX), and Powder X-ray diffraction (XRD) were used to characterize the prepared nanomaterials. The results of the energy dispersive X-ray analysis identified the presence of the elements (Ag, Fe, and Co) and their distribution on the surface of the material. The X-ray diffraction pattern also confirmed the formation of nanocomposites (Ag/Fe2O3 and Ag/CoO). The degradation of MB in the presence of sunlight ratified that the nanocomposites (Ag/Fe2O3 and Ag/CoO) had weak photocatalytic absorption efficiency controlled by pseudo-second order kinetic model. Comparing both nanocomposites, the nanocomposite (Ag/Fe2O3) showed the best photocatalytic performance with a percentage of 56% within 3h. The results of the photocatalytic experiments indicated that the introduction of Ag into the metal oxides limited the charge recombination process between the photogenerated electrons/holes and thus facilitated the absorption of methylene blue.

Silver Nanoparticles, Nanocomposites, Photocatalytic, Metal Oxide, Pseudo- Second Order, Absorption

APA Style

Donourou Diabate, Koffi Pierre Dit Adama N’goran, Tano Patrice Fato, N’Guessan Louis Berenger Kouassi. (2023). Synthesis of Metallic Silver Supported by Metal Oxides (Fe2O3 and CoO) for the Removal of Methylene Blue in the Presence of Sunlight. American Journal of Applied Chemistry, 11(5), 122-129.

ACS Style

Donourou Diabate; Koffi Pierre Dit Adama N’goran; Tano Patrice Fato; N’Guessan Louis Berenger Kouassi. Synthesis of Metallic Silver Supported by Metal Oxides (Fe2O3 and CoO) for the Removal of Methylene Blue in the Presence of Sunlight. Am. J. Appl. Chem. 2023, 11(5), 122-129. doi: 10.11648/j.ajac.20231105.12

AMA Style

Donourou Diabate, Koffi Pierre Dit Adama N’goran, Tano Patrice Fato, N’Guessan Louis Berenger Kouassi. Synthesis of Metallic Silver Supported by Metal Oxides (Fe2O3 and CoO) for the Removal of Methylene Blue in the Presence of Sunlight. Am J Appl Chem. 2023;11(5):122-129. doi: 10.11648/j.ajac.20231105.12

Copyright © 2023 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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