The application of nanomaterials has gained considerable momentum in various fields in recent years due to their high reactivity, excellent surface properties and quantum effects in the nanometer range. The properties of zinc oxide (ZnO) vary with its crystallite size or particle size and often nanocrystalline ZnO is seen to exhibit superior physical and chemical properties due to their higher ...

Vertically aligned ZnO nanowire (NW) arrays have been synthesized on silicon substrates by chemical vapor deposition. The growth of ZnO NWs may be dominated by vapor-solid nucleation mechanism. Morphological, structural, optical, and field emission characteristics can be modified by varying the growth time. For growth time that reaches 120 min, the length and diameter of ZnO NWs are 1.5 μm and ...

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...

the performance of msu-s and its forms modified with phosphotungstic acid (hpw) and nickel (ni) for the desulfurization and denitrogenation of model diesel fuel were studied. according to the results of the characteristic tests (n2 adsorption-desorption, xrd, sem, and nh3-tpd), heteropoly acid incorporation causes higher acidity along with a negligible loss of structural aspects, while ni impre...

In this work, magnetically separable ZnO-ZnFe2O4-PPy nanocomposite as an efficient adsorbent was synthesized by two steps. At first, zinc oxide (ZnO) and ZnFe2O4 nanoparticles were synthesized using simple and facile precipitation method. Then, ZnO-ZnFe2O4 mixed oxide was modified by polypyrrole (PPy). The adsorbent was character...

Current lithium?sulfur (LiS) batteries have some severe issues such as shuttle effect of polysulfides and volumetric expansion sulfur, even though their high theoretical energy density is attractive. Herein, we present a porous multi-walled ZnCo2O4 sphere prepared by self-reduction approach sulfur host for LiS battery cathode. During the annealing an inorganic-organic hybrid precursor, spheres ...

Present research work reports the synthesis of visible light-active ZnO photocatalyst through modification with N/GO and Fe2O3/GO. Modified samples are characterized by XRD. Photocatalytic activities measured in waste water consist organic pollutants such as Malachite green (MG). N-ZnO/GO exhibited better photocatalytic degradation compare to Fe2O3 doped ZnO. Dye follow first order kinetic rate...

Raw clays, extracted from Bana, west Cameroon, were modified with semiconductors (TiO2 and ZnO) in order to improve their depollution properties the addition of photocatalytic properties. Cu2+ ions also added clay by ionic exchange increase specific surface area. This insertion Cu was confirmed ICP-AES. The presence TiO2 ZnO detection anatase wurzite, respectively, using X-ray diffraction. comp...

Hydrogen sulfide (H2S) and sulfur dioxide (SO2) are two typical decomposition byproducts of hexafluoride (SF6), commonly used as an insulating medium in electrical equipment; for instance, gas circuit breakers insulated switchgears. In our work, fiber-like p-CuO/n-ZnO heterojunction sensing materials were successfully prepared via the electrospinning method to detect SF6 byproducts, H2S SO2 gas...

To improve plant fibres/polymer matrix adhesion, the surface of flax yarns was modified by zinc oxide (ZnO) nanorods, which were synthesized through a hydrothermal treatment. Several parameters analysed in order to obtain uniform and homogeneous ZnO interphase, such as number seeding cycles, growth times replacement solution. The results showed that it is possible highly oriented nanostructures...