نتایج جستجو برای: magnetic iron oxid

تعداد نتایج: 470485  

   Magnetic nanoparticles are of great interest for researchers from a wide range of disciplines, including nano-magnetic fluids, nanocatalysis, biomedical applications, magnetic resonance imaging, and specifically environmental remediation. Nanomaterial like Iron Oxide (Fe3O4) is one of the most promising candidates to remove heavy metals and dyestuffs from the indust...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2009
O Isnard V Pop

The magnetic properties of the YFe(12-x)M(x) compounds (M = Ti, Mo or V; x = 1-3.5) have been determined in the ordered ferromagnetic state as well as in the paramagnetic state. The iron magnetic moment has been determined from 4 K up to the Curie temperature whereas the analysis of the paramagnetic region has led to the determination of the effective iron magnetic moment. The number of spins h...

2010
Thomas Gredig K. Paul Gentry Corneliu N. Colesniuc Ivan K. Schuller

Magnetic metallo-organic thin films have been prepared at different growth temperatures to characterize the influence of structural properties on the magnetic characteristics. A quantitative analysis of the grain size shows that the growth temperature increases the elliptical grain size considerably. Long grains of planar iron phthalocyanine form quasi one-dimensional iron chains, which are emb...

Journal: :JAMA: The Journal of the American Medical Association 1918

Journal: :Journal of materials science 2016
Yuping Bao Tianlong Wen Anna Cristina S Samia Amit Khandhar Kannan M Krishnan

We present an interdisciplinary overview of material engineering and emerging applications of iron oxide nanoparticles. We discuss material engineering of nanoparticles in the broadest sense, emphasizing size and shape control, large-area self-assembly, composite/hybrid structures, and surface engineering. This is followed by a discussion of several non-traditional, emerging applications of iro...

Journal: :Chemical communications 2017
Dekai Zhou Liqiang Ren Yuguang C Li Pengtao Xu Yuan Gao Guangyu Zhang Wei Wang Thomas E Mallouk Longqiu Li

We report the synthesis and properties of rod-shaped gold/iron oxide nanomotors that are powered by visible light in dilute hydrogen peroxide solutions. Electrochemical measurements confirmed that the light-driven nanomotors operate by a self-electrophoretic mechanism, modulated by the photovoltage and the photoconductivity of gold/iron oxide. Due to the magnetism of iron oxide, the nanomotors ...

2009
Gareth Hinds Fernando M. F. Rhen

The application of a magnetic field unexpectedly alters the rest potential of ferromagnetic electrodes in paramagnetic solutions of their salts. Anodic shifts of up to 60 mV in a field of 1 tesla were observed for 1 M iron electrodes in iron nitrate solution. The magnitude of the shift depends on magnetic field strength and orientation and it varies with the anion used. The shift is smaller for...

Journal: :iranian chemical communication 2015
navabeh nami mehdi forouzani hassan ghasemnejad-bosra omid khalilpour tylami

one-pot reaction of aldehydes or ketons with aniline derivatives was performed using nabh4 and fe3o4 magnetic nanoparticles (mnps). the optimum amount of fe3o4 mnps was 5 mol% under solvent free condition. the corresponding products were obtained in good to excellent yields. the magnetically recoverable iron oxide nanoparticles are found to be efficient for synthesis of amine derivatives. these...

Journal: :Journal of the American Medical Association 1916

ژورنال: سلامت و محیط زیست 2014
آذری, علی, احمدی, احسان, راستکاری, نوشین, رضایی کلانتری, روشنک, فاتحی, میثم, مختاری, مهدی, کاکاوندی, بابک,

Background and Objectives: Phenol is one of priority pollutants produced through leather, paint, resin, and pharmaceutical industries and it can contaminate groundwater after entering to the environment. Hence, it is necessary to use a suitable method for its removal. The aim of this study was synthesize and efficiency evaluation of magnetic nanocomposite of activated carbon powder-zero valent ...

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