We investigate the effects of amplitude modulation (AM) discharge method on growth nanoparticles and relation between plasma generation in tetraethylorthosilicate (TEOS)/O2/Ar plasma. The laser-light scattering (LLS) intensity, which is proportional to density sixth power size Rayleigh regime, decreases by 18% at an AM level 10% 60% 50%. On other hand, ArI emission roughly density, higher than ...

In this paper, we report on a process for fabricating silica nanoparticle monolayer based chemical synthesis and spin-coating. Spherical nanoparticles were synthesized by Stöber method using tetraethylorthosilicate as precursor. Close-packed was realized optimizing the speed of Based analyzing field emission scanning electron microscope (FE-SEM) images, average diameter spheres determined found...

The nanoparticles of Ni–Si mixed oxides were prepared by co-precipitation method using nickel nitrate; Ni(NO3)2 6H2O and tetraethylorthosilicate (TEOS). The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and hydrogen temperature program reduction (H2-TPR). The results revealed that Ni–Si mixed oxides particles were obtained with average particle ...

TiO2/SiO2 nanocomposite with molar ratio 1:1 was synthesized by a free calcination sol-gel method using titanium tetra chloride and tetraethylorthosilicate as raw materials. In the composite, TiO2 nanocrystals are highly dispersed in the amorphous SiO2 matrix and the mater showed size quantization effect arising from the presence of extremely small titanium oxide species having a low coordinati...

Organic-inorganic hybrid materials overcome drawbacks associated with alginate hydrogels. In this work, covalently coupled silica-alginate hybrids were prepared by Schiff base formation and sol-gel reaction using dialdehyde (ADA), (3-Aminopropyl) triethoxysilane (APTES), APTES/tetraethylorthosilicate (TEOS) precursors. The influence of the polysaccharide/inorganic ratio, nature inorganic precur...

In targeted drug delivery, the is released at a specific and desired point condition. this research, magnetite cores (high saturation magnetization property (emu.g-159) were used to target system. First, nanoparticles synthesized by coprecipitation method from divalent trivalent chloride salts of iron (FeCl2 FeCl3), then mesoporous silicas (with pore diameter 13 nm) formed Stöber's tetraethylor...

Uniform hollow silica nanospheres (HSNs) synthesized with reverse microemulsion have great application potential as nanoreactors because enzymes or nanocatalysts can be easily encapsulated de novo in synthesis. Water-in-oil (w/o) reverse microemulsions comprising the polymeric surfactant polyoxyethylene (5) isooctylphenyl ether (Igepal CA-520), ammonia and water in a continuous oil phase (alkan...

the nanoparticles of ni–si mixed oxides were prepared by co-precipitation method using nickel nitrate; ni(no3)2 6h2o and tetraethylorthosilicate (teos). the products were characterized by x-ray diffraction (xrd), transmission electron microscopy (tem), and hydrogen temperature program reduction (h2-tpr). the results revealed that ni–si mixed oxides particles were obtained with average particle ...