title: Biosynthesis of Ag/reduced graphene oxide/Fe(3)O(4) using Lotus garcinii leaf extract and its application as a recyclable nanocatalyst for the reduction of 4-nitrophenol and organic dyes.
abstract: In current research, Ag/RGO/Fe3O4nanocomposite was synthesized through applying the aqueous extract of Lotus garcinii leaves through a two-step method. The plant extract was utilized as agents for reduction and stabilization in biosynthesizing nanocomposite. The green synthesized nanocatalyst was characterized by FT-IR, FE-SEM, EDX, XRD, TEM, UV-Vis absorption spectroscopy. The catalytic activity of the biosynthesized nanocomposite was studied by reducing different colored solutions contained organic pollutants such as 4-nitrophenol (4-NP), Congo red (CR) and Rhodamine B (RhB). In order to verify commercial applications of the prepared heterogeneous nanocatalyst, reusability and recoverability tests were performed in five successive catalytic reactions.
authors.affiliation: Department of Chemistry, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul, Iran. Electronic address: mehdimaham@gmail.com.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Maham
authors.affiliation: Department of Chemistry, Faculty of Science, University of Qom, Qom 3716146611, Iran; Center of Environmental Researches, University of Qom, Qom, Iran.
authors.forename: Mahmoud
authors.initials: M
authors.lastname: Nasrollahzadeh
authors.affiliation: Department of Petroleum Geoscience, Faculty of Science, Soran University, PO Box 624, Soran, Kurdistan Regional Government, Iraq.
authors.forename: S Mohammad
authors.initials: SM
authors.lastname: Sajadi
authors.affiliation: Department of Chemistry, Shahrood Branch, Islamic Azad University, Shahrood, Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Nekoei
mesh_terms: D002384:Catalysis; D004396:Coloring Agents / Q000737:chemistry*; D052203:Ferrosoferric Oxide / Q000737:chemistry* / Q000378:metabolism; D006108:Graphite / Q000737:chemistry* / Q000378:metabolism; D000070116:Lotus / Q000737:chemistry* / Q000378:metabolism; D009596:Nitrophenols / Q000737:chemistry*; D010084:Oxidation-Reduction; D010936:Plant Extracts / Q000737:chemistry / Q000378:metabolism*; D012834:Silver / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; D009596:Nitrophenols; D010936:Plant Extracts; D012834:Silver; D006108:Graphite; D052203:Ferrosoferric Oxide; C024836:4-nitrophenol
keywords: 4-Nitrophenol; Ag/RGO/Fe(3)O(4) nanocomposite; Biosynthesis; Lotus garcinii; Organic dyes; Reduction