نتایج جستجو برای: fe2o3 nanoparticle
تعداد نتایج: 34396 فیلتر نتایج به سال:
High-fluorescent p-X-ferrites (XFe2O4; XFO; X = Fe, Cr, Mn, Co, or Ni) embedded in n-hematite (Fe2O3) surfaces were successfully fabricated via a facile bio-approach using Shewanella oneidensis MR-1. The results revealed that the X ions with high/low work functions modify the unpaired spin Fe2+-O2- orbitals in the XFe2O4 lattices to become localized paired spin orbitals at the bottom of conduct...
The unique property of phosphate-based glasses and fibres to be completely dissolved in aqueous media is largely dependent on the glass composition. This article focuses on investigating the effect of replacing Na2O with 3 and 5 mol% Fe2O3 on cytocompatibility, thermal and dissolution properties of P2O5-CaO-Na2O-MgO-B2O3 glass system, where P2O5 content was fixed at 45 mol%. The effect of incre...
This study attempted to synthesize onedimensional (1D) coaxial nanotubes of Fe2O3 based on carbon nanotubes (CNT@Fe2O3) via atomic layer deposition (ALD) using ferrocene and oxygen as precursors. Results disclosed that undoped CNTs were suitable for the ALD of Fe2O3 (ALD-Fe2O3) only if they were chemically functionalized, due to their inert surface nature. It was further demonstrated that the e...
Improving the heat transfer performance of conventional fluid creates significant energy savings in process Industries. In this aspect, an experimental study was performed to evaluate Fe2O3-water (W)-engine oil (EO) nanofluid at different concentrations and hot inlet temperatures a plate exchanger. Experiments were conducted by mixing Fe2O3 nanoparticles (45 nm) W-EO mixture base with volume fr...
Oil well drilling fluid rheology, lubricity, swelling, and loss control are all critical factors to take into account before beginning the hole's construction. Drilling fluids can be made smoother, more cost-effective, efficient by investigating evaluating effects of various nanoparticles including aluminum oxide (Al2O3) iron (Fe2O3) on their performance. A fluid's performance assessed comparin...
The effects of laser irradiation on γ-Fe2O3 4 ± 1 nm diameter maghemite nanocrystals synthesized by co-precipitation and dispersed into an amorphous silica matrix by sol-gel methods have been investigated as function of iron oxide mass fraction. The structural properties of γ-Fe2O3 phase were carefully examined by X-ray diffraction and transmission electron microscopy. It has been shown that γ-...
Recently Fe2O3 NPs (iron oxide nanoparticles) have been extensively used in medical imaging and in industry also. As a result, people are increasingly exposed day by day to those nanoparticles. The adverse effect of Fe2O3 NPs is not so significant at lower doses but at higher doses Fe2O3 NPs causes significant damage to cells. The present study investigates the cell signaling mechanism of Fe2O3...
Liposomes, particles composed of a thin bilayer shell surrounding an aqueous core, have recently gained attention as a potential biomedical tool for diagnostic or therapeutic use. Hybridizing liposomes with bound or encapsulated nanoparticles could extend their range of functionality, leading to applications including hyperthermia treatments. Though drug delivery remains one of the most promisi...
Two series of Fe2O3/TiO2 samples were prepared via impregnation and photodeposition methods. The effect of preparation method on the properties and performance of Fe2O3/TiO2 for photocatalytic degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) under UV light irradiation was examined. The Fe2O3/TiO2 nanocomposites prepared by impregnation showed lower activity than the unmodified TiO2, mainly...
ont matter & 2013 0.1016/j.nanoen.2 thor. Tel.: +1 301 uthor. Tel.: +1 30 : [email protected] (M . Wang). ntributed equally Abstract Mesoporous Fe2O3 spherical particles with amorphous or crystalline structure were prepared at different temperatures using aerosol spray pyrolysis. The crystalline Fe2O3 (C-Fe2O3) anodes pyrolysized at 800 1C show better electrochemical performance than the amorphous Fe...
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