نتایج جستجو برای: tio2 nano powders

تعداد نتایج: 82147  

2014
Hanan Ramadan Hamad Mohamed

Despite uses of titanium dioxide (TiO2) particles in various consumer and medical products therapy increasing human daily exposure, little studies were conducted on its cardiotoxicity. Thus, this study was designed to investigate the possible modulation of nanoTiO2 induced genotoxicity, mutagenicity and apoptosis by chlorophyllin (CHL) coadministration in mice cardiac cells. Mice were injected ...

Journal: :Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology 2015
Samy A Abdelazim Hebatallah A Darwish Sanaa A Ali Maha Z Rizk Mai O Kadry

BACKGROUND/AIM The present study investigated the in vitro and in vivo effects of individual and combined doses of idebenone, carnosine and vitamin E on ameliorating some of the biochemical indices of nano-sized titanium dioxide (n-TiO2) in mice liver. METHODS The in vitro cytotoxic effect of nano-sized anatase TiO2 (21 nm) on hepatic cell lines (HepG 2) was investigated. Additionally, n-TiO2...

2017
Mao-Xiang Jing Jing-Quan Li Chong Han Shan-Shan Yao Ji Zhang Hong-Ai Zhai Li-Li Chen Xiang-Qian Shen Ke-Song Xiao

Improving the specific capacity and electronic conductivity of TiO2 can boost its practical application as a promising anode material for lithium ion batteries. In this work, a three-dimensional networking oxygen-deficient nano TiO2-x/carbon fibre membrane was achieved by combining the electrospinning process with a hot-press sintering method and directly used as a self-standing anode. With the...

2013
NarONgDeT WONgPiSuTPaiSaN NaraTiP ViTTayakOrN aNuCha ruaNgPhaNiT WiSaNu PeCharaPa

Cu-doped TiO2 nanopowders were prepared by sonochemical-assisted process via a precursor solution of titanium isopropoxide, copper nitrate trihydrate and sodium hydroxide in the presence of polyvinyl alcohol in combination with calcinations process. The as-synthesized products were calcined at various temperatures ranging from 500-1000°C. The physical microstructures, morphologies and chemical ...

2005
Takeshi Morikawa Ryoji Asahi Takeshi Ohwaki Koyu Aoki Kenichi Suzuki Yasunori Taga

A new photocatalyst, known as nitrogen-doped TiO2 (TiO2-xNx), yielding high reactivity under visible light irradiation, together with high potential for mass-productivity, has been developed by using a highly time-efficient development technique that combines computational materials design with experimental syntheses. Under visible light irradiation, TiO2-xNx films and powders exhibit significa...

2011
GJE Poinern R Brundavanam X Thi Le S Djordjevic M Prokic D Fawcett

Hydroxyapatite (HAP) is a widely used biocompatible ceramic in many biomedical applications and devices. Currently nanometer-scale forms of HAP are being intensely investigated due to their close similarity to the inorganic mineral component of the natural bone matrix. In this study nano-HAP was prepared via a wet precipitation method using Ca(NO(3))(2) and KH(2)PO(4) as the main reactants and ...

Journal: :Nanoscale 2015
Jeong Won Kim Yo-han Suh Chang-Lyoul Lee Yong Seok Kim Won Bae Kim

A nano-grid structure of perovskite SrTiO3 NWs is developed for a novel electron transport layer in inverted polymer solar cells. Due to the excellent charge transporting properties of the SrTiO3 nano-grid structure, the device employing this nanostructure showed ∼32% enhanced photovoltaic performance, compared to the solar cell using a TiO2 thin film.

Journal: :international journal of nanoscience and nanotechnology 2015
m. mirzaei h. ahadi m. shariaty-niassar m. akbari

in this research fe-tio2 nanocomposites with different molar ratios of fe/ti were prepared as nano-photocatalyst using a modified sol-gel process at ambient temperature. crystallographic properties of nanocomposites were characterized by x-ray diffraction (xrd). surface morphology and mean particle size of nanocomposites were specified by field emission scanning electron microscopy (fesem) and ...

2012
N. Obradović M. V. Nikolić N. Nikolić S. Filipović M. Mitrić V. Pavlović P. M. Nikolić A. R. Đorđević M. M. Ristić

Mixtures of BaCO3, ZnO and TiO2 powders, with molar ratio of 1:2:4, were mechanically activated for 20, 40 and minutes in a planetary ball mill. The resulting powders were compacted into pellets and isothermally sintered at 1250 °C for 2h with a heating rate of 10 °C/min. X-ray diffraction analysis of obtained powders and sintered samples was performed in order to investigate changes of the pha...

2016
Robert Gordon N. H. Faisal R. Ahmed S. P. Katikaneni M. F. A. Goosen

Air plasma sprayed (APS) coatings provide an ability to deposit a range of novel fuel cell materials at competitive costs. This work develops three separate types of composite anodes (Mo-Mo2C/Al2O3, Mo-Mo2C/ZrO2, Mo-Mo2C/TiO2) using a combination of APS process parameters on Hastelloy ® X for application in intermediate temperature proton conducting solid oxide fuel cells. Commercially availabl...

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