Green synthesis of multifunctional MgO@AgO/Ag2O nanocomposite for photocatalytic degradation of methylene blue and toluidine blue

Younes Zidane; Salah E Laouini; Abderrhmane Bouafia; Souhaila Meneceur; Mohammed L Tedjani; Sohad A Alshareef; Hanadi A Almukhlifi; Khansaa Al-Essa; Ethar M Al-Essa; Mohammed M Rahman; Osama Madkhali; Farid Menaa

doi:10.3389/fchem.2022.1083596

Green synthesis of multifunctional MgO@AgO/Ag₂O nanocomposite for photocatalytic degradation of methylene blue and toluidine blue

Front Chem. 2022 Dec 15:10:1083596. doi: 10.3389/fchem.2022.1083596. eCollection 2022.

Authors

Younes Zidane^{1

2}, Salah E Laouini^{1

2}, Abderrhmane Bouafia^{1

2}, Souhaila Meneceur^{1

2}, Mohammed L Tedjani^{1

2}, Sohad A Alshareef³, Hanadi A Almukhlifi³, Khansaa Al-Essa⁴, Ethar M Al-Essa⁵, Mohammed M Rahman⁶, Osama Madkhali⁷, Farid Menaa⁸

Affiliations

¹ Department of Process Engineering, Faculty of Technology, University of El Oued, El-Oued, Algeria.
² Laboratory of Biotechnology Biomaterial and Condensed Matter, Faculty of Technology, University of El Oued, El-Oued, Algeria.
³ Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia.
⁴ Department of Chemistry, Jerash University, Jerash, Jordan.
⁵ Department of Civil Engineering, Isra University, Amman, Jordan.
⁶ Center of Excellence for Advanced Materials Research (CEAMR) and Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
⁷ Department of Physics, College of Science, Jazan University, Jazan, Saudi Arabia.
⁸ Department of Biomedical and Environmental Engineering (BEE), Fluorotronics, Inc.-California Innovations Corporation, San Diego, CA, United States.

Abstract

Introduction: In this paper, MgO@AgO/Ag₂O nanoparticles were greenly synthesized, the current idea is to replace the harmful chemical technique with an ecofriendly synthesis of metal oxide nanoparticles (NPs) utilizing biogenic sources. Methods: The current investigation was conducted to create silver oxide NPs decorated by MgO NPs (namely, MgO@AgO/Ag₂O nanocom-posite) using the leaves extract of Purslane (Portulaca Oleracea) as the reducing and capping agent. The nanopowder was investigated by means of X-ray diffraction, scanning electron mi-croscope, BET surface area, Fourier transform infrared, and UV-vis spectrophotom-eter studies. XRD studies reveal the monophasic nature of these highly crystalline silver nano-particles. SEM studies the shape and morphology of the synthesis AgO/Ag₂O and MgO@AgO/Ag₂O NPs. The presence of magnesium and oxygen was further confirmed by EDS profile. Results and discussion: The surface area was found to be 9.1787 m²/g and 7.7166 m²/g, respectively. FTIR analysis showed the presence of specific functional groups. UV-vis spectrophotometer studies show the absorption band at 450 nm due to surface plasmon resonance. The results have also indicated the high performance of the greenly synthesized AgO/Ag₂O NPs and MgO@AgO/Ag₂O NPs for photocatalytic activity dye degradation (methylene blue and toluidine blue).

Keywords: MgO@AgO/Ag2O NPs; Portulaca oleracea; green synthesis; methylene blue; photocatalysis; toluidine blue.