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...

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...

Mn-doped zinc oxide nanoparticles were prepared by using the microwave solvothermal synthesis (MSS) technique. The nanoparticles were produced from a solution of zinc acetate dihydrate and manganese(II) acetate tetrahydrate using ethylene glycol as solvent. The content of Mn(2+) in Zn1- x Mn x O ranged from 1 to 25 mol %. The following properties of the nanostructures were investigated: skeleto...

An internal combustion engine requires a proper cooling system to release heat from the engine. The working fluid or coolant in water-cooled impacts overall radiator performance. Several studies show that nanopowder can increase thermal performance of base fluids, although pressure drops significantly. This paper describes experimental study motorcycle using ZnO with distilled water and commerc...

In this work, plasma has been used as a simple, very fast, low energy and efficient method for modification of the zinc oxide nanopowder to improve its photocatalytic activity. Zinc is one effective photocatalysts in degradation organic contaminants, e.g. dyes. The purpose photocatalyst reduce band gap thus increase activity visible light range. To achieve nitrogen-doped nanoparticles (N-Doped ...

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...

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...

Solar cells based on blends of organic semiconductors (such as conjugated polymers or small molecules) and fullerene derivatives are rapidly gaining acceptance as an alternate technology for renewable energy generation. For solution processed organic photovoltaics (OPVs), the bulk heterojunction (BHJ) architecture which consists of an interpenetrating network of the exciton generating organic d...

In this study, ZnFe2O4 (ZFO) nanotapers are fabricated on the ZnO nanorods (NRs) by recycling rare-earth oxide (REO) slag as the iron source, which thereby exhibits dramatically enhanced photoelectrochemical (PEC) efficiency. Our studies demonstrate that the electron-hole separation and charge migration can be facilitated by the cascade band alignment of ZFO and ZnO and the branched nanotaper s...