Green hydrothermal synthesis and characterization of Ag 2 O-supported MgO/rGO nanocomposites by using Phoenix leaf extract: a promising approach for enhanced photocatalytic and anticancer activities.

Autor: Alaizeri ZM; Department of Physics and Astronomy, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia. zalaizeri@ksu.edu.sa., Alhadlaq HA; Department of Physics and Astronomy, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia., Aldawood S; Department of Physics and Astronomy, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia., ALSaeedy M; Department of Chemistry 'Giacomo Ciamician, ' University of Bologna, 40126, Bologna, BO, Italy., Ahamed M; King Abdullah Institute for Nanotechnology, King Saud University, Riyadh-11451, Saudi Arabia.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Jul; Vol. 31 (31), pp. 44136-44149. Date of Electronic Publication: 2024 Jun 27.
DOI: 10.1007/s11356-024-33998-0
Abstrakt: The present work was designed to synthesize Ag 2 O-supported MgO/rGO nanocomposites (NCs) via green method using Phoenix leaf extract for improved photocatalytic and anticancer activity. Green synthesized Ag 2 O-supported MgO/rGO NCs were characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), Raman, ultraviolet-visible (UV-vis) spectroscopy, and photoluminescence (PL) spectroscopy, and gas chromatography-mass spectroscopy (GC-MS) was applied to examine the chemical components of the Phoenix leaf extract. Characterization data confirmed the preparation of MgO NPs, Ag 2 O-MgO NCs, and Ag 2 O-MgO/rGO NC with particle size of 26-28 nm. UV-vis study exhibited that the band gap energy of MgO NPs, Ag 2 O-MgO NCs, and Ag 2 O-MgO/rGO NC were in the range of 3.53-3.43 eV. The photocatalytic results showed that the photodegradation of Rh B dye of Ag 2 O-supported MgO/rGO NCs (82.81%) was significantly higher than pure MgO NPs. Additionally, the biological response demonstrates that the Ag 2 O-supported MgO/rGO NCs induced high cytotoxicity against MCF-7 cancer cells for 24 h and 48 h compared with both pure MgO NPs and Ag 2 O-MgO NCs. This study suggests that the adding of Ag 2 O and rGO sheets played significant role in the enhanced photocatalytic and anticancer performance of MgO NPs.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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