A brief review of our recent research on preparation and characterization oxide nanoparticles their derivatives by hydrothermal growth is presented. series Ga2O3 , ZnO, TiO2 nanoparticles, as well derivative nanomaterials including GaN nanowires ZnO/TiO2 nanocompostes have been prepared. ZnO nanopowders produced using metal nitrate hydrates precursors, while Titanium isopropoxide was used for n...

In the last few years nanostructure ZnO is being intensively investigated from the growth control, structural and physical characterization, to device performance. There are now increasing interests in a wide range of ZnO-based ternary compound nanostructures offering even larger possibilities. These compounds can be useful as multi-color light-emitting device, sensors, transparent electrodes, ...

The brine shrimp, Artemia spp., is widely used in ecotoxicological research as a biological index. In the present study, aquatic stability and acute toxic effects of TiO2, CuO and ZnO nanoparticles (NPs) on Artemia franciscana were investigated. Acute exposure was conducted in sea water with different concentrations of selected nanoparticles at 24h, 48h, 72h and 96h. The mortality rate of A. fr...

The aim of this project is to investigate the photocatalytic activity ZnO/TiO2 composite films for gas-phase oxidation ethanol. Pure TiO2, pure ZnO, and their composites were formulated using a sol-gel synthesis method, resulting powders cast dried as thin in flat-plate ultraviolet light-emitting diode (UV LED) reactor. P25 TiO2 commercially available ZnO also used comparison. structural, morph...

In solar energy harvesting using cells and photocatalysts, the photoexcitation of electrons holes in semiconductors is first major step conversion. The lifetime carriers, a key factor determining conversion photocatalysis efficiency, shortened mainly by recombination photoexcited carriers. We prepared tested series ZnO/TiO2-based heterostructures search designs which can extend carrier lifetime...

Microorganisms, such as bacteria, are one of the first targets of nanoparticles in the environment. In this study, we tested the effect of two nanoparticles, ZnO and TiO2, with the salt ZnSO4 as the control, on the Gram-positive bacterium Bacillus subtilis by 2D gel electrophoresis-based proteomics. Despite a significant effect on viability (LD50), TiO2 NPs had no detectable effect on the prote...