نتایج جستجو برای: titania nanotubes

تعداد نتایج: 31961  

Journal: :Applied Mathematics and Nonlinear Sciences 2016

Sol-gel technique was used to coat multiwall carbon nanotubes (MWCNTs) with anatase titania to increasing the surface area and improve the photocatalytic activity of TiO2. Room temperature ballistic conduct of MWCNT combined with semiconducting behavior of anatase brought about a photocatalytic improvement of ~37 % with respect to the highest methyl orange decolorization flair. For characteriza...

2003
Krishnankutty-Nair P. Kumar Klaas Keizer

Textural evolution (porosity reduction, pore and crystallite growth) in titania-alumina composite membranes has been studied using thermal analysis, X-ray diffraction, field emission scanning electron microscopy and N, physisorption techniques. The presence of alumina in the membranes improved the thermal stability of the porous texture by retarding the anatase-to-rutile phase transformation a...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2011
Ahmet Faik Demirörs Anita Jannasch Peter D J van Oostrum Erik Schäffer Arnout Imhof Alfons van Blaaderen

Titania is an important material in modern materials science, chemistry, and physics because of its special catalytic, electric, and optical properties. Here, we describe a novel method to synthesize colloidal particles with a crystalline titania, anatase core and an amorphous titania-shell structure. We demonstrate seeded growth of titania onto titania particles with accurate particle size tun...

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