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Heterostructures of hollow cone-like ZnO/CoFe2O4 nanocomposites (NPs) are successfully fabricated by a two-step hydrothermal route with the assistance of Si substrate as the template. The material structure, composition, morphology as well as the magnetic property have been investigated via scanning electron microscopy, transmission electron microscopy, an X-ray diffractometer and a vibrating sample...
In this work, Ag/TiO2 photo catalyst was prepared by depositing elemental Ag on the surface of TiO2 particle surface. Ag was got by reducing ion Ag+ in the suspension of TiO2 with illumination of UV light. When it was used to degrade ethylene blue (MB) using UV light, Ag/TiO2 gave higher catalytic activity than TiO2. To examine the influence of existing type of catalyst on photo degradation of organic...
Titanium dioxide is the most popular photocatalyst among the common photocatalysts such as TiO2, ZnO, ZrO2, SnO2, WO3, CeO2, Fe2O3, Al2O3, ZnS and CdS as it is relatively inexpensive, stable chemically, and the photogenerated holes are highly oxidizing. In general, synthesis of TiO2 usually results in amorphous structures, but electrical arc discharge in water has the advantage in this regard as it...
A series of Zn2+ and Eu3+ co-doped TiO2 catalysts were prepared by a modified sol-gel method. The prepared catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy(TEM) and ultraviolet-visible diffuse reflection spectroscopy(UV-vis DRS). Characteristic results clearly show that all of Zn2+ and Eu3+ co-doped TiO2 samples exclusively consist of primary anatase crystallites,...
Degussa P25 TiO2 loaded on activated carbon fibers (TiCVACFs) was prepared by using the sodium carboxymethyl cellulose (CMC) as the adhesive. The surface morphology and microstructure of TiCVACFs photocatalyst were characterized by SEM, EDS, BET and XRD. The photocatalytic activities of TiCVACFs to flowing low concentration gaseous toluene (1-3 mg/m3) were investigated. It was observed that TiO2 loaded...
PbS quantum dots (PbS QDs) with tunable size were attached to TiO2 nanotubes both inside and outside the surface of the nanotubes by using thiolactic acid, a bifunctional linker. The size of the PbS QDs with diameters of 2-10 nm was controlled by adjusting the concentration of thiolactic acid. By first blocking the outer surface of the TNTs with the double-chain cationic surfactant, PbS QDs can be...
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