Abstract Pure and Cu doped anatase/rutile mixed TiO 2 nanomaterials were fabricated through sol-gel method. The obtained photocatalysts characterized by XRD, SEM, TEM, XPS, PL DRS, the influences of doping on structure photocatalytic property studied. results show that when molar ratios Cu/Ti are 1% 2%, promotes anatase → rutile phase transformation. When ratio is 4%, transformation inhibited. ...

Titanium dioxide (TiO2) nanoparticles were prepared by the sol–gel method and structural, morphological, optical properties investigated at different sintering temperatures of 500, 600, 700, 800, 900°C. A tetragonal structure anatase, mixed (anatase–rutile), rutile phases are observed in X-ray diffraction (XRD) analysis. Pure anatase phase formation occurred 500°C, whereas anatase-to-rutile tra...

Although it is known that nano-TiO2or other nanoparticles can induce liver toxicities, the mechanisms and the molecular pathogenesis are still unclear. In this study, nano-anatase TiO2(5 nm) was injected into the abdominal cavity of ICR mice for consecutive 14 days, and the inflammatory responses of liver of mice was investigated. The results showed the obvious titanium accumulation in liver DN...

The interaction of the ionic liquid [C4 C1 Im][BF4 ] with anatase TiO2 , a model photoanode material, has been studied using a combination of synchrotron radiation photoelectron spectroscopy and near-edge X-ray absorption fine structure spectroscopy. The system is of interest as a model for fundamental electrolyte-electrode and dye-sensitized solar cells. The initial interaction involves degrad...

Nano-TiO(2) was shown to cause various toxic effects in both rats and mice; however, the molecular mechanism by which TiO(2) exerts its toxicity is poorly understood. In this report, an interaction of nano-anatase TiO(2) with liver DNA from ICR mice was systematically studied in vivo using ICP-MS, various spectral methods and gel electrophoresis. We found that the liver weights of the mice trea...

Carbon-based TiO₂ composites have many advantages as photocatalysts. However, they suffer from low light efficiency due to the low contrast of TiO₂ with carbon. We synthesized a novel type of anatase-type TiO₂-C hybrid aerogel by a one-pot sol-gel method, which shows a photocatalytic activity for methylene degradation up to 4.23 times that of P25, a commercial photocatalyst from Degussa Inc. Th...

The influence of the vanadium load and calcination temperature on the structural characteristics of the V2O5/TiO2 system was studied by X-ray diffraction and X-ray absorption spectroscopy (XAS) techniques. Samples of the V2O5/TiO2 system were prepared by the sol–gel method under acid conditions and calcined at different temperatures. The rutile phase was found to predominate in pure TiO2 calcin...

Plasma electrolytic oxidation (PEO) was applied to functionalise the surface of AA2024 alloy. A potassium titanium-oxide oxalate dihydrate based aqueous electrolyte used, which allowed direct formation a TiO2 layer on aluminium alloy substrate. The effect PEO treatment time and additional presence anatase particles in solution its properties (corrosion, wear photocatalytic activity) were invest...

Anatase phase TiO2 nanoparticles were synthesized by sol–gel method using titanium(IV) butoxide as a starting material. The pH of solution was maintained adding HNO3 and NaOH. obtained powder heat-treated at 350 °C for 2 h. XRD study shows that the crystalline size crystallinity samples increase with solution. Raman spectra confirm dominance anatase TiO2. Morphology done scanning electron micro...