This study presents the advances in field of ZnO/Ag catalysts from synthesis hierarchical ZnO nanowires (NWs) decorated with Ag nanoparticles, prepared by a facile solvothermal method at 120°C. It evaluates photocatalytic efficiency studying time reaction Ag/Zn concentration ratio and presence cetyltrimethylammonium bromide (CTAB) as an organic dispersant. X-ray diffraction, scanning electron m...

A low-cost noble metal-free substrate comprised of annealed graphene oxide (GO)/ZnO composites is prepared to demonstrate an efficient chemical surface-enhanced Raman scattering effect. A high enhancement factor of about 10, better than those reported for reduced GO (rGO)/Au and GO/Ag composites, is mainly attributed to the unusually abundant oxygen-containing groups generated on surface of rGO...

In this work, a chemical wet method used to prepare SWCNTs decorated with ZnO-Ag and ZnO-Au as nanocomposite materials by using precipitate method. Then, the overall measurement results were characterized via (UV-Vis) spectrophotometer demonstrate role of presence in SWCNTs/ZnO-Ag/ZnO-Au produce number electron-holes pairs present additive nanoparticles. Nano had been shown many biological acti...

In the present work zinc oxide nanoflakes (ZnO-NF) structures with a wall thickness around 50 to 100 nm were synthesized on a gold coated glass substrate using a low temperature hydrothermal method. The enzyme uricase was electrostatically immobilized in conjunction with Nafion membrane on the surface of well oriented ZnO-NFs, resulting in a sensitive, selective, stable and reproducible uric ac...

escherichia coli is being one of the common microbial flora of gastrointestinal and respiratory tracts of poultry but may become pathogenic to both. antibiotic treatment is considered the most important issue that promotes the emergence, selection and deploying of antibiotic-resistant microorganisms in veterinary medicine. with the increase of resistant to antibiotics, many researchers have tri...

Abstract CO 2 and steam/CO electroreduction to methane in solid oxide electrolytic cells (SOEC) has gained major attention the past few years. This work evaluates, for very first time, performance of two different ZnO–Ag cathodes: one where ZnO nanopowder was mixed with Ag powder preparing cathode ink (ZnO mix –Ag cathode) other infiltrated a zinc nitrate solution inf cathode). had better distr...

Hydrothermal fabrication of selectively doped (Ag(+)+Pd(3+)) advanced ZnO nanomaterial has been carried out under mild pressure temperature conditions (autogeneous; 150°C). Gluconic acid has been used as a surface modifier to effectively control the particle size and morphology of these ZnO nanoparticles. The experimental parameters were tuned to achieve optimum conditions for the synthesis of ...

We employed a simple and effective electroless (EL) plating approach to produce silver nanoparticles (NPs) on bare silicon, on dielectric ZnO nanowires (NWs) and on Si NWs, respectively. The surface stability of the homogeneous Ag NPs formed on the ZnO NW surfaces was investigated by surface enhanced Raman spectroscopy (SERS), which show that the attachment of thiol to the Ag surface can slow d...