نتایج جستجو برای: ag tio2 nanoparticles

تعداد نتایج: 164926  

Journal: :Catalysts 2021

In solar energy harvesting using cells and photocatalysts, the photoexcitation of electrons holes in semiconductors is first major step conversion. The lifetime carriers, a key factor determining conversion photocatalysis efficiency, shortened mainly by recombination photoexcited carriers. We prepared tested series ZnO/TiO2-based heterostructures search designs which can extend carrier lifetime...

Journal: :Physical chemistry chemical physics : PCCP 2006
Susan J Stott Roger J Mortimer Sandie E Dann Munetaka Oyama Frank Marken

Titanium carbide (TiC) nanoparticles are readily deposited onto tin-doped indium oxide (ITO) electrodes in the form of thin porous films. The nanoparticle deposits are electrically highly conducting and electrochemically active. In aqueous media (at pH 7) and at applied potentials positive of 0.3 V vs. SCE partial anodic surface oxidation and formation (at least in part) of novel core-shell TiC...

Journal: :Analytical chemistry 2005
Cheng-Tai Chen Yu-Chie Chen

Columns packed with microsized titanium dioxide particles have been used effectively as precolumns for enriching phosphopeptides from complex mixtures. Nanosized titanium dioxide particles have a higher specific surface area and, hence, potentially higher trapping capacities toward phosphopeptides than do microsized particles. Thus, in this study, we employed TiO2-coated magnetic (Fe3O4/TiO2 co...

2011
Peng Tao Yu Li Atri Rungta Anand Viswanath Jianing Gao Brian C. Benicewicz Richard W. Siegel Linda S. Schadler

Transparent polymer nanocomposites with high refractive index were prepared by grafting polymer chains onto anatase TiO2 nanoparticles via a combination of phosphate ligand engineering and alkyneazide ‘‘click’’ chemistry. Highly crystalline TiO2 nanoparticles with 5 nm diameter were synthesized by a solvothermal method and used as high refractive index filler. The synthesized phosphate-azide li...

2017
Stephen Ducharme Balamurugan Balasubramanian Kristin L. Kraemer David J. Sellmyer Kristin L Kraemer David J Sellmyer

The embedding of oxide nanoparticles in polymer matrices produces a greatly enhanced dielectric response by combining the high dielectric strength and low loss of suitable host polymers with the high electric polarizability of nanoparticles. The fabrication of oxide–polymer nanocomposites with well-controlled distributions of nanoparticles is, however, challenging due to the thermodynamic and k...

Journal: :Catalysts 2022

The photocatalytic activity of silver-based catalysts containing different amounts molybdenum disulfide (MoS2; 5, 10 and 20 wt.%) was evaluated by the degradation antibiotic ciprofloxacin production hydrogen via water splitting. All silver (Ag)-based degraded more than 70% in 60 min. catalyst that exhibited best result 5%Ag@TiO2-P25-5%MoS2, with ca. 91% degradation. control experiments stabilit...

A. Ehteram, M. Hamadanian, S. Z. Mirdamadian V. Jabbari

In this investigation, Ag@TiO2 nanocomposite was prepared by deposition of silver nanoclusters onto commercial TiO2 nanoparticles (known as P25 TiO2) via photodeposition technique as clean and simple photochemical route. The synthesized Ag@TiO2 nanocomposite was utilized in the fabrication of dye-sensitized solar cell (DSSC) chiefly because, compared ...

Journal: :journal of dental research, dental clinics, dental prospects 0
saeed shirkavand elnaz moslehifard

background and aims. adding further fillers to dental resins may enhance their physical characteristics. the aim of this study was to evaluate the tensile strength of heat-curing acrylic resin reinforced by tio2 nanoparticles added into the resin matrix. materials and methods. commercially available tio2 nanoparticles were obtained and characterized using x-ray diffraction (xrd) and scanning ele...

2013
Yanhua Hou Kaiyong Cai Jinghua Li Xiuyong Chen Min Lai Yan Hu Zhong Luo Xingwei Ding Dawei Xu

BACKGROUND The purpose of this study was to investigate the influences of nanoscale wear particles derived from titanium/titanium alloy-based implants on integration of bone. Here we report the potential impact of titanium oxide (TiO2) nanoparticles on adhesion, migration, proliferation, and differentiation of mesenchymal stem cells (MSC) from the cellular level to the molecular level in the Wi...

Journal: :Plasmonics 2021

The optical properties of nanostructures are rather important for designing plasmonic devices. In this work, the Ag-coated spherical dielectric nanoparticles (NPs), namely, Ag-SiO2-NPs, Ag-ZnO-NPs, and Ag-TiO2-NPs, were studied using a method finite-difference time-domain calculations. It was found that NPs start to exhibit unique different from Ag-NPs as thickness Ag shells is reduced be less ...

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