title: Synthesis, characterization, low temperature solid state PL and photocatalytic activities of Ag₂O·CeO₂·ZnO nanocomposite.
abstract: A novel multi-metal nanocomposite oxide Ag2O·CeO2·ZnO has been prepared by co-precipitation of their carbonates from aqueous solutions of the metal nitrates following calcinations and annealing 5h at 450°C and 4h at 600°C. Ag2O·CeO2·ZnO has been characterized by XRD, SEM, EDS and PL spectra. According to XRD results the crystallite size of Ag2O·CeO2·ZnO varies in the range of 19-111 nm with an average size of 50 nm, which is in good agreement with SEM results. Elemental analysis was performed by SEM-EDS. Emissions of Ag2O·CeO2·ZnO has been observed in UV (NBE emission), visible and NIR regions at 325 nm excitation by a line of He-Cd laser. Photocatalytic as well as anti-bacterial activities have been studied. The nano composite Ag2O·CeO2·ZnO shows an excellent photocatalytic dye degradation activity.
authors.affiliation: Department of Chemistry, Shah Jalal University of Science and Technology, Sylhet 3114, Bangladesh; Deparment of Arts and Science, Osaka Kyoiku University, Kashiwara, Osaka, Japan. Electronic address: subhan-che@sust.edu.
authors.forename: Md Abdus
authors.initials: MA
authors.lastname: Subhan
authors.affiliation: Department of Chemistry, Shah Jalal University of Science and Technology, Sylhet 3114, Bangladesh.
authors.forename: Nizam
authors.initials: N
authors.lastname: Uddin
authors.affiliation: Square Pharmaceuticals Ltd., Bangladesh.
authors.forename: Prosenjit
authors.initials: P
authors.lastname: Sarker
authors.affiliation: Deparment of Arts and Science, Osaka Kyoiku University, Kashiwara, Osaka, Japan.
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Nakata
authors.affiliation: Deparment of Arts and Science, Osaka Kyoiku University, Kashiwara, Osaka, Japan.
authors.forename: Ryuzi
authors.initials: R
authors.lastname: Makioka
mesh_terms: D001419:Bacteria / Q000187:drug effects*; D002384:Catalysis; D002563:Cerium / Q000737:chemistry*; D008027:Light; D008163:Luminescent Measurements; D053761:Nanocomposites / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D018030:Silver Compounds / Q000737:chemistry*; D013696:Temperature; D014961:X-Ray Diffraction; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D010087:Oxides; D018030:Silver Compounds; D002563:Cerium; C030583:ceric oxide; C040225:disilver oxide; D015034:Zinc Oxide
keywords: Anti-bacteria; NBE emission; Nanocomposite oxide; Photocatalyst; Photoluminescence