نتایج جستجو برای: ag doped
تعداد نتایج: 90820 فیلتر نتایج به سال:
In this research, undoped and doped (Fe, Ce, and Ag) antibacterial coatings of nanostructured TiO2 films were prepared by a sol-gel dip coating method. Doped and undoped TiO2 films were excited with ultraviolet (UV) radiation to improve their photo catalytic activity. The antibacterial activity against Staphylococcus Aureus bacteria was studied using an antibacterial–drop test and colony count ...
Ag-Fe2O3 and Sn-doped Ag-Fe2O3 nanocomposite photocatalysts were optimized by scanning photoelectrochemical microscopy (SPECM) as a potential photoelectrochemical material for visible light irradiation (λ g 420 nm). The photocurrent vs potential response and the action spectra were investigated in a three-electrode cell. Among different mole ratios, the composition of nanocomposite with 50%Ag-5...
The basic requirements of the CdS thin films on their applications are high optical transparency, low electrical resistivity, and better crystalinity (e.g.high orientation). Firstly, we prepared CdS films by thermal eveporation techniques on glass substrate and then studied their photoconductivity from room temperature to 200 . Secondly, we prepared CdS films with impurities of Cu, Ag, Au and...
Either metal/metal or metal/non-metal co-doping is one of the most effective methods to modulate visible emission ZnO. In this paper, ZnO, aluminum-doped ZnO (Al-ZnO), aluminum and silver co-doped (Al/Ag-ZnO), nitrogen (Al/N-ZnO) are deposited. Combining substitution zinc ions using Al and/or Ag doping oxygen N expected introduce more interstitial vacancy defects related light in films. The res...
Highly luminescent Ag-ion-doped Cd1-xZnxS (0 ≤ x ≤ 1) alloy nanocrystals were successfully synthesized by a novel wet chemical precipitation method. Influence of dopant concentration and the Zn/Cd stoichiometric variations in doped alloy nanocrystals have been investigated. The samples were characterized by X-ray diffraction (XRD) and high resolution transmission electron microscope (HRTEM) to ...
In this work, Ag- or/and Cu-doped BiVO4 samples have been prepared successfully via hydrothermal and photoreduction method. Ag/Cu co-doped exhibited high photocatalytic degradation efficiency in the of methylene blue (MB) displayed a significantly superior property compared to pure BiVO4, as well only or upon exposure visible light source. Interestingly, we found that enhanced activity arises f...
LaMnO3 and 1% Pd-, Ag-, or Y-doped perovskite type nanomaterials were prepared by the sol-gel method, followed heat treatment at a low temperature (600 °C for 6 h). The investigation through X-ray diffraction FT-IR spectroscopy indicated that all samples well crystallized, without secondary phases, transition metal doping changed crystal structure from R-3c space group undoped to Pm-3m doped co...
Monodispersed spherical Ag-doped bioactive glass nanoparticles (Ag-BGNs) were synthesized by a modified Stöber method combined with surface modification. The surface modification was carried out at 25, 60, and 80 °C, respectively, to investigate the influence of processing temperature on particle properties. Energy-dispersive X-ray spectroscopy (EDS) results indicated that higher temperatures f...
With the aim of gauging their potential as conducting or superconducting materials, we examine the crystal structures and magnetic properties of the roughly one hundred binary, ternary, and quaternary Ag(II) and Ag(III) fluorides in the solid state reported up to date. The Ag(II) cation appears in these species usually in a distorted octahedral environment, either in an [AgF](+) infinite chain ...
A novel method was used to synthesize a nanosilver-doped multiwall carbon nanotube (MWCNT-Ag), and subsequently, the novel poly(lactic acid) (PLA)and MWCNT-Ag-based biocompatible and antimicrobial nanocomposites were prepared by melt blending. Based on energy dispersive X-ray spectrometry images, an MWCNT-Ag was successfully synthesized. The effect of the MWCNT-Ag on the PLA bionanocomposites w...
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