Many methods have been reported on improving the photogenerated cathodic protection of nano-TiO2 coatings for metals. In this work, nano-TiO2 coatings doped with cerium nitrate have been developed by sol-gel method for corrosion protection of 316 L stainless steel. Surface morphology, structure, and properties of the prepared coatings were investigated by X-ray diffraction, X-ray photoelectron ...

Simple and low temperature hydrothermal process is employed to synthesize exotic nanostructures of TiO2. The nanostructures are obtained merely by changing the nature of the precursors and processing parameters. The chloride and isopropoxide salts of titanium are used to grow high quality thin films comprising anatase nanocorals, rutile nanorods and rutile nanoflowers respectively. A novel rout...

nano tio2 supported on sio2 (nano tio2@sio2) as a solid lewis acid, was described to be an effective and reusable catalyst for one-pot three-component reaction of benzil, aryl aldehydes and ammonium acetate for the synthesis 2-aryl-4,5-diphenyl-1h-imdazoles synthesis. to explore the high efficacy of the catalytic system the four-component cyclization of benzil, aryl aldehydes, ammonium acetate ...

catalytic and photocatalytic reactions of (2-chloroethyl) phenyl sulfide (2-ceps), a mimic of bis (2-chloroethyl)  sulfide (i.e. sulfur mustard) were studied on the surfaces of titanium oxide. tio2 nanoparticles (anatase, rutile and mixture of 80% anatase/20% rutile) along with bulk tio2 were tested as reactive sorbents for reaction of 2-ceps at room temperature (25±0.5°c). reactions were monit...

in this research work nano porous silicon layers with different porosity were prepared by using electrochemical etching. surface morphology and size of pores were investigated by scanning electron microscopy (sem).tio2 thin films with ebpvd method have been deposited on the surface of psi layers. the influence of anodization conditions such as anodization time interval and current density on el...

the preparation of nano-sized tio2 by titanium tetraisopropoxide (ti(oipr)4) via sol-gelmethod using acid as a catalyst is investigated and the optimized conditions concerning theproportional amount of acid, water, alcohol is established by xrd and sem. the effect ofcalcination temperature on phase transformation of tio2 (rutile, anatase and brookite) wasdetermined by xrd. the smallest grain si...

Interface issues are common and crucial in nanocomposites or nanohybrid systems since the interface area is enormous on the nanoscale. In the 0-3 polymer nanocomposites, in which nano-inclusions (0-dimension) are embedded in 3-dimensionally connected polymer matrix, enhanced dielectric permittivity could be induced by the interfacial polarization at the interfaces between the nano-inclusions an...

The effects of 3d transition metal doping in TiO2 phases have been simulated in detail. The results of modelling indicate that Mn has the biggest potential among 3d transition metals, for the reduction of energy gap and the introduction of effective intermediate bands to allow multi-band optical absorption. On the basis of theoretical formulation, we have incorporated considerable amount of Mn ...

BACKGROUND In this study, concrete application as a substrate for TiO2 nano powder immobilization in heterogeneous photocatalytic process was evaluated. TiO2 immobilization on the pervious concrete surface was done by different procedures containing slurry method (SM), cement mixed method (CMM) and different concrete sealer formulations. Irradiation of TiO2 was prepared by UV-A and UV-C lamps. ...

At this study; Chitosan was obtained from crayfish and identified by X-ray diffraction (XRD), molecular weight elemental analyses. Later, it coated on fabrics alone in combination with nano-metal.The protective properties of the investigated UV protection antibacterial Crayfish chitosan had low crystallinity (72%), (Mw) (11.2 kDa) degree deacetylation (DD) (16%). When used together, nano-TiO2 r...