Facile synthesis of Ag/ZrO2 nanocomposite as a recyclable catalyst for the treatment of environmental pollutants (original) (raw)
Related papers
Z. Phys. Chem, 2023
In the present work, silver-doped zirconium oxide nanocomposites were synthesized by hydrothermal method and characterized by XRD, FTIR, FESEM and EDX techniques. The existence of zirconium and silver in the finished nanocomposites from the produced material is investigated using XRD and FTIR. The estimated particle diameter size range for crystallites is 10-16 nm. In addition, the obtained Ag/ZrO 2 nanocomposites were analyzed the biocidal activity of two separate bacteria Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), and two separate fungal Aspergillus niger (A. niger), Candida albecans, pure AgO, ZrO 2 and Ag doped ZrO 2 nanocomposites were also examined. This Ag doped ZrO 2 (10 %) nanocomposites have a larger zone of inhibition than other human diseases, according to the results of the biocidal activity.
Preparation and catalytic properties of low content Ag-added ZrO2 for soot oxidation
Journal of the Ceramic Society of Japan, 2019
Low content (0.13.4 wt %) Ag added ZrO 2 catalysts were synthesized by a hydrothermal method for soot combustion catalysis. The thermal stability and microstructure were characterized by X-ray diffractogram, field emission scanning microscopy, surface area and X-ray Absorption Fine Structure (XAFS) measurement. Soot oxidation temperature of Ag/ZrO 2 catalysts was able to be controlled by changing heat-treatment temperature for starting powders. The mixture of metallic Ag and ionic Ag 2 O was observed by the XAFS spectra, and catalysts maintaining thermal stability were modified by active Ag/Ag 2 O mixed state on ZrO 2. The catalysts with only 0.9 and 3.4 wt % doping of Ag in ZrO 2 were effective and a better candidate for diesel soot oxidation catalysis.
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015
h i g h l i g h t s Nanocomposite oxide Ag 2 OÁCeO 2 ÁZnO has been prepared. Characterized by XRD, SEM, EDS and PL spectra. Low temperature solid state PL spectra observed. NBE, blue, green, orange and red emissions are observed. Excellent photocatalytic and anti-bacterial activities observed. g r a p h i c a l a b s t r a c t Nanocomposite oxide Ag 2 OÁCeO 2 ÁZnO has been prepared and characterized by XRD, SEM, SEM-EDS and PL spectra. Low temperature solid state PL spectra of Ag 2 OÁCeO 2 ÁZnO have been studied exciting at 325 nm by a line of He-Cd laser. NBE, blue, green, orange and red emissions are observed.