title: Tyrosine-assisted preparation of Ag/ZnO nanocomposites with enhanced photocatalytic performance and synergistic antibacterial activities.
abstract: In this paper, Ag/ZnO metal-semiconductor nanocomposites were prepared through a facile one-pot hydrothermal method with the assistance of tyrosine. The synthesized samples were structurally characterized by x-ray diffraction, scanning electron microscope, transmission electron microscope and x-ray photoelectron spectroscopy. It was shown that the added tyrosine served both as a shape conductor for the formation of ZnO faceted nanorods and as a reducing agent of Ag(+) ions. In the reaction process, the complexation of Ag(+) with NH(3) and OH(-) decreased the redox potential of Ag(+)/Ag, which prevented the formation of isolated Ag nanoparticles in solution. The prepared Ag/ZnO nanocomposites showed potential applications in photodegradation of organic dye pollutants and destruction of bacteria.
authors.affiliation: College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China. School of Chemistry and Environmental Science, Henan Key Laboratory of Environmental Pollution Control, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China.
authors.forename: Weiwei
authors.initials: W
authors.lastname: Lu
authors.forename: Guosheng
authors.initials: G
authors.lastname: Liu
authors.forename: Shuyan
authors.initials: S
authors.lastname: Gao
authors.forename: Shantao
authors.initials: S
authors.lastname: Xing
authors.forename: Jianji
authors.initials: J
authors.lastname: Wang