rare earth titania

Rare Earth Doped Titania Nanoparticles Upregulate Cellular

As such titania nanoparticles were doped with gadolinium to optimize the localized energy absorption from a conventional medical X-ray and further optimized by the addition of other rare earth...

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NSF Award Search Award 1512106

Increased efficiency of dye-sensitized solar cells by addition of rare earth oxide microparticles into a titania acceptor Electrochemical Acta v211 2016 p 918 Devesa Canicoba Noelia and Fernando Kasun and Blancon Jean-Christophe and Liu Fangze and Le Brizoual Laurent and Rogel Regis and Even Jacky and Alphenaar Bruce W and Nie...

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Hydrothermal Synthesis of Rare

In order to expand the use of titania indoor as well as to increase its overall performance narrowing the band gap is one of the possibilities to achieve this Modifying with rare earths REs has been relatively unexplored especially the modification of rutile with rare earth cations The aim of this study was to find the influence of the modification of TiO2 with rare earths on its...

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Hydrothermal Synthesis of Rare

Titania was synthesized using TiOSO 4 as the source of titanium via hydrothermal synthesis procedure at low temperature 200 176 C and modified with selected rare earth elements namely Ce La and Gd Structural properties of samples were determined by X-ray powder diffraction XRD and the phase ratio was calculated using the Rietveld method...

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617fb Rare Earth Element Doped Titania TiO2 for

The major drawback of titania is its bandgap Having a very high band gap 30 eV for rutile 32 for anatase titania is only responsive towards UV light There is interest in enhancing the light absorbing properties of titania by doping various metals through upconversion phenomenon...

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Rare earth oxide

Rare-earth oxide-doped titania nanocomposites RE 3 /TiO 2 where RE = Eu 3 Pr 3 Gd 3 Nd 3 and Y 3 were prepared by a one-step sol-gel-solvothermal method The products exhibited anatase phase structure mesoporosity and interesting surface compositions with three oxygen species and two titanium speci...

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PDF Townley et al2 in vivo demonstration of enhanced

Each well was then inoculated with Rare earth doped titania nanoparticles coated with silica TiO2 - 50 000 cells in 200 ml media The cells were added carefully to the mol RE SiO2 were prepared according to Townley et al 18 Downloaded by University of Oxford on 07 July 2012 centre of each well and incubated overnight to form spheroids...

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Efficacy of radiosensitizing doped titania nanoparticles

We have previously demonstrated that rare earth doped titania nanoparticles NPs can be used to enhance the efficacy of radiotherapy both in vitro and in mouse xenograft models1 2 In this study we aimed to synthesize the NPs by a scalable route to verify the integrity of the particles and to further assess the efficacy of the NPs under the...

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PDF Enhancement of titania by doping rare earth for

18 J lin JC Yu An investigation on photocatalytic activities of mixed TiO -rare from the interaction between the rare earth oxides and TiO2 The earth oxides for the oxidation of acetone in air J Photochem Photobiol...

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Hydrothermal Synthesis of Rare

Modifying with rare earths REs has been relatively unexplored especially the modification of rutile with rare earth cations The aim of this study was to find the influence of the modification of TiO2 with rare earths on its structural optical morphological and photocatalytic properti Titania was synthesized using TiOSO4 as the...

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RARE EARTH DOPED NANOCRYSTALLINE TITANIUM DIOXIDE

Abstract Eu 3 doped nanocrystalline titania have been prepared by two routes i homogeneously disperse the rare earth ions into the titanium sol-gel before the consolidation process by using butanediol solution and subsequently obtained the homogeneously rare earth doped titania ii impregnation of as-prepared pure titania calcined at 500 176 C for 1h in air by using rare earth nitrate...

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Visible light induced photocatalytic activity of rare

Pradhan Preparation characterization and photo- 29 R Ghosh Chaudhuri and S Paria Synthesis of sulfur nano- catalytic activity of sulfate-modified titania for degradation particles in aqueous surfactant solutions J Colloid Inter- of methyl orange under visible light...

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Direct quantification of rare earth doped titania

There are many possible biomedical applications for titania nanoparticles NPs doped with rare earth elements REEs from dose enhancement and diagnostic imaging in radiotherapy to biosensing However there are concerns that the NPs could disintegrate in the body thus releasing toxic REE ions to undesired locations As a first step we investigate how accurately the Ti/REE ratio from the...

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US4162631A

Thermistors comprising transition metal such as iron rare earth of the lanthanide series or yttrium and oxygen exhibit sufficient independence to variation in oxygen partial pressure over a range of exhaust gas conditions of internal combustion engines as to make them particularly suitable for temperature compensation of oxygen sensors such as those derived from titania as well as...

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Constructing Black Titania with Unique Nanocage Structure

Solar desalination driven by solar radiation as heat source is freely available however hindered by low efficiency Herein we first design and synthesize black titania with a unique nanocage structure simultaneously with light trapping effect to enhance light harvesting well-crystallized interconnected nanograins to accelerate the heat transfer from titania to water and with opening...

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Synthesis of rare earth doped TiO 2 nanorods as

A two-step process is developed to synthesize rare earth doped titania nanorods RE-TiO 2 NRs as photocatalysts for efficient degradation of lignin under simulated sunlight irradiation In this approach protonated titanate nanotubes with layered structures were first prepared by a hydrothermal approach and rare earth metal ions were subsequently bound to the negatively charged surface of...

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Rare Earth Product Offerings

Lanthanum atomic no 57 symbol La weight at 13891 and is the first element in the rare earth or lanthanide seri It is the model for all the other trivalent rare earths After cerium it is the second most abundant of the rare earths...

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Visible light induced photocatalytic activity of rare

The effect of doping titania with rare earth erbium and ytterbium ions on photocatalytic degradation of a real pollutant phenol and a model pollutant was studied under simulated solar radiation...

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Local environment of rare

We have applied extended x-ray absorption fine structure EXAFS spectroscopy to the K edge of rare earths RE in a study of the local environments of diluted Er and Yb dopants in silicate glasses prepared by sol-gel processing Silica-titania-alumina glasses doped with RE ions at and above the luminescence quenching concentration were investigated and EXAFS spectra were recorded in a wide...

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Effect of Rare

Doping of rare-earth metal oxides into nanocrystalline titanium dioxide NTD films is known to improve performance for photovoltaic and photocatalytic applications however the reasons for this improvement are not well understood To explore the enhancement mechanism an electrical and electrochemical study of rare-earth oxide-doped NTD films was performed Doped films were found to be 40...

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In vivo demonstration of enhanced radiotherapy using rare

Optimization of a nanomaterial for interaction with X-rays could be used for deep tumour treatment As such titania nanoparticles were doped with gadolinium to optimize the localized energy absorption from a conventional medical X-ray and further optimized by the addition of other rare earth RE elements...

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TiO2 nanofibers doped with rare earth elements and their

Sep 01 2012 0183 32 Fig 1 shows the XRD patterns of pure and Ln-doped titania samples at 500 176 C The crystalline phase of all pure and doped titania is showing the anatase phase at 500 176 C Xu et al reported that rare earth metal salts can be changed into rare earth oxides La 2 O 3 during the calcination processTherefore it can be inferred that the Ln 3 ions were dispersed on the surface of TiO 2 in the...

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