title: Green Synthesis and Characterization of Palladium Nanoparticles Using Origanum vulgare L. Extract and Their Catalytic Activity.
abstract: The synthesis of Palladium (Pd) nanoparticles by green methods has attracted remarkable attention in recent years because of its superiority above chemical approaches, owing to its low cost and ecological compatibility. In this present work, we describe a facile and environmentally friendly synthesis of Pd nanoparticles (Pd NPs) using an aqueous extract of aerial parts ofOriganum vulgareL. (OV) as a bioreductant. This plant is available in many parts of the world as well as in Saudi Arabia and is known to be a rich source of phenolic components, a feature we fruitfully utilized in the synthesis of Pd NPs, using various concentrations of plant extracts. Moreover, the OV extract phytomolecules are not only accountable for the reduction and progression of nanoparticles, but they also act as stabilizing agents, which was confirmed by several characterization methods. The as-synthesized Pd nanoparticles (Pd NPs) were analyzed using ultraviolet-visible spectroscopy (UV-Vis), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), and thermal gravimetric analysis (TGA). Further, FT-IR study has proven that the OV not merely represents a bioreductant but also functionalizes the nanoparticles. Furthermore, the green synthesized metallic Pd NPs were successfully applied as catalysts for selective oxidation of alcohols.
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. rafiskm@gmail.com.
authors.forename: Mohammed Rafi
authors.initials: MR
authors.lastname: Shaik
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. qween22777@hotmail.com.|Department of Chemistry, University College Debaa, University of Tabuk, P.O. Box 741, Tabuk 71491, Saudi Arabia. qween22777@hotmail.com.
authors.forename: Zuhur Jameel Qandeel
authors.initials: ZJ
authors.lastname: Ali
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. kmujeeb@ksu.edu.sa.
authors.forename: Mujeeb
authors.initials: M
authors.lastname: Khan
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. mufsir@gmail.com.
authors.forename: Mufsir
authors.initials: M
authors.lastname: Kuniyil
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. mhd.elshahat@gmail.com.
authors.forename: Mohamed E
authors.initials: ME
authors.lastname: Assal
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. khathlan@ksu.edu.sa.
authors.forename: Hamad Z
authors.initials: HZ
authors.lastname: Alkhathlan
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. awarthan@ksu.edu.sa.
authors.forename: Abdulrahman
authors.initials: A
authors.lastname: Al-Warthan
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. rafiqs@ksu.edu.sa.
authors.forename: Mohammed Rafiq H
authors.initials: MR
authors.lastname: Siddiqui
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. mkhan3@ksu.edu.sa.
authors.forename: Merajuddin
authors.initials: M
authors.lastname: Khan
authors.affiliation: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. sfadil@ksu.edu.sa.
authors.forename: Syed Farooq
authors.initials: SF
authors.lastname: Adil
mesh_terms: D000438:Alcohols / Q000737:chemistry; D002384:Catalysis; D055772:Green Chemistry Technology / Q000379:methods*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D031341:Origanum / Q000737:chemistry*; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*
chemical_list: D000438:Alcohols; D010936:Plant Extracts; D010165:Palladium
keywords: Origanum vulgare L. extract; catalytic activity; green synthesis; palladium nanoparticles