نتایج جستجو برای: niobium doped tio2

تعداد نتایج: 71795  

2008
L. Gomathi Narasimha Murthy

Transition metal doping into the TiO2 lattice can expand the response of these metal oxide nano particles to the visible region. In view of this, Mo ion is doped into the TiO2 lattice in order to understand the mechanism of its photo response. The prepared photocatalysts were characterized by X-ray diffraction, UV–Visible absorption spectroscopy, UV–Visible diffuse reflectance spectroscopy, SEM...

Journal: :Chemical communications 2005
Sujith Perera Edward G Gillan

The solid-state hydrolysis and air calcination of aluminum-doped TiCl3 leads to crystalline anatase TiO2 that is stable on heating to 1000 degrees C, in contrast to control studies with related AlCl3 and TiCl3 physical mixtures that produce rutile TiO2 under the same conditions.

2017
Valentina Caratto Lorenzo Ball Elisa Sanguineti Angelo Insorsi Iacopo Firpo Stefano Alberti Maurizio Ferretti Paolo Pelosi

Objective: The aim of this study was to assess the antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa of two nanoparticle endotracheal tube coatings with visible light-induced photocatalysis. Methods: Two types of titanium dioxide nanoparticles were tested: standard anatase (TiO2) and N-doped TiO2 (N-TiO2). Nanoparticles were placed on the internal surface of a se...

2015
Syed Mansoor Ali Mohamed Aslam W. A. Farooq Amanullah Fatehmulla M. Atif

Quantum dot (QD) sensitized solar cells based on Hierarchical TiO2 structure (HTS) consisting of spherical nano-urchins on transparent conductive fluorine doped tin oxide glass substrate is fabricated. The hierarchical TiO2 structure consisting of spherical nano-urchins on transparent conductive fluorine doped tin oxide glass substrate synthesized by hydrothermal route. The CdS quantum dots wer...

2012
Ji-Hong Kim Kyung-Ju Lee Ji-Hyung Roh Sang-Woo Song Jae-Ho Park In-Hyung Yer Byung-Moo Moon

Ga-doped ZnO [GZO] thin films were employed for the transparent electrodes in dye-sensitized solar cells [DSSCs]. The electrical property of the deposited GZO films was as good as that of commercially used fluorine-doped tin oxide [FTO]. In order to protect the GZO and enhance the photovoltaic properties, a TiO2 blocking layer was deposited on the GZO surface. Then, TiO2 nanoparticles were coat...

2015
Sanjayan Sathasivam Davinder S. Bhachu Yao Lu Nicholas Chadwick Shaeel A. Althabaiti Abdulrahman O. Alyoubi Sulaiman N. Basahel Claire J. Carmalt Ivan P. Parkin

Tungsten doped titanium dioxide films with both transparent conducting oxide (TCO) and photocatalytic properties were produced via aerosol-assisted chemical vapor deposition of titanium ethoxide and dopant concentrations of tungsten ethoxide at 500 °C from a toluene solution. The films were anatase TiO2, with good n-type electrical conductivities as determined via Hall effect measurements. The ...

2003
Andrew Burns G. Hayes W. Li J. Hirvonen J. Derek Demaree Ismat Shah

Doped and undoped nanostructured titanium dioxide was synthesized via a sol–gel method under varying conditions to determine the effects of neodymium ion doping on the titania lattice. Specifically, the effects of doping on the anatase to rutile phase transformation were studied. Samples were analyzed by a variety of techniques, including X-ray diffraction, Rutherford back-scattering spectrosco...

Journal: :Inorganics (Basel) 2022

A new niobium-doped inorganic scintillating oxyfluoride, Rb4Ge5O9F6:Nb, was synthesized in single crystal form by high-temperature flux growth. The host structure, Rb4Ge5O9F6, crystallizes the orthorhombic space group Pbcn with lattice parameters a = 6.98430(10) Å, b 11.7265(2) and c 19.2732(3) consisting of germanium oxyfluoride layers made up Ge3O9 units connected GeO3F3 octahedra. In its pur...

2016
Hamed Hajibabaei Omid Zandi Thomas W. Hamann

Figure S1. EDS spectrum of Ta-doped TiO2 as a function of ratio of cycles of TaOx to TiO2, a) 1:150, b) 1:100, and c) 1:50. d) Atomic percentage of Ta as a function of ratio of cycles of TaOx:TiO2.

Journal: :Physical chemistry chemical physics : PCCP 2015
Yohei Ishida Yasutomo Motokane Tomoharu Tokunaga Tetsu Yonezawa

Here we report a novel method for modifying commercially available TiO2 nanoparticles by a microwave-induced plasma technique. After the plasma treatment TiO2 nanoparticles showed enhanced visible absorption due to the doped W atoms, and the photocatalytic methylene blue degradation above 440 nm was successfully improved.

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