Synthesis, densification and characterization of Ag doped ceria nanopowders

Silver/silver halide supported on mesoporous ceria particles and photo-CWPO degradation under visible light for organic compounds in acrylonitrile wastewater

“…34-0394), the wide angle diffraction pattern shows that the CeO 2 has face centered cubic structure. 26,27 The characteristic peaks of Ag and AgCl appear on the spectra of Ag/AgCl/CeO 2 (x), which indicates that the cubic phase AgCl crystals are formed on the surface of CeO 2 under the irradiation of high pressure sodium lamp, and some Ag + in AgCl are reduced to Ag atoms, which are aggregated to form cubic Ag and deposited on the surface of AgCl particles. Also, with the increase of Ag doping amount, the characteristic peak intensity of Ag increases.…”

Catalytic wet peroxide degradation of acrylonitrile wastewater by ordered mesoporous Ag/CeO2: synthesis, performance and kinetics

“…All the peaks in the pattern are indexed for face-centered cubic structure, and the lattice constant calculated from XRD data is closely agreement with Joint Committee of Powder Difraction Data (JCPDS) (card no: 34-0394 and 65-2871). 43,44 The small angle diffraction pattern of the samples are shown in Fig. 1b.…”

Metal-Mediated Nanoscale Cerium Oxide Inactivates Human Coronavirus and Rhinovirus by Surface Disruption

“… 35 , 36 The ability of ceria to hold silver in a positive oxidation state was observed experimentally in the same study as well as in similar investigations. 35 , 37 Authors in another experimental study note the formation of a silver oxide layer separating metallic silver from ceria phases, which undergoes reduction over time under calcination. 38 Additionally, it was found in experimental and computational investigations that Ag + -species could substitute for cerium atoms at/near the surface of ceria substrates: lowering oxygen vacancy formation energy.…”

“… 35 , 36 These interactions occur with silver coordinating to Ce 3+ -sites forming a physical complex. 36 , 37 Interestingly, experimental studies have also shown an increase in surface vacancy density leads to an increased silver nanoparticle number density at the material surface, at fixed silver concentration. It has been stated in several studies that Ag + are effectively pinned to oxygen vacancies, in support of the observed modulation in silver nanoparticle density.…”