نتایج جستجو برای: bismuth oxide nanoparticles

تعداد نتایج: 275024  

2010
Savio J. A. Moniz Christopher S. Blackman Claire J. Carmalt Geoffrey Hyett

Bismuth oxide (Bi2O3) is an important component of several ferroelectric, 1 multiferroic 2,3 and superconducting oxide materials. 4 It has also received much interest due to its use as an ion conducting electrolyte material in solid oxide fuel cells, 5 an electrode material in discriminating gas sensors 6 and as an effective UV light photocatalyst. 7,8 There are a number of distinct crystallogr...

2012
M. Suresh Chandra Kumar M. Vadivel

Silane modified iron (III) oxide (SiFe2O3) nanoparticles reinforced chitosan (CS) nanocomposite membranes were prepared by solcast transformation method. The iron (III) oxide nanoparticles and nanocomposite membranes were investigated by UV (Visible) spectroscopy, FT-IR spectroscopy, XRD, SEM and TEM. The size and shape of iron (III) oxide and Si-Fe2O3 nanoparticles were determined by XRD and T...

2012
Enav Corem-Salkmon Benny Perlstein Shlomo Margel

BACKGROUND Colon cancer is one of the major causes of death in the Western world. Early detection significantly improves long-term survival for patients with the disease. Near- infrared (NIR) fluorescent nanoparticles hold great promise as contrast agents for tumor detection. NIR offers several advantages for bioimaging compared with fluorescence in the visible spectrum, ie, lower autofluoresce...

Journal: :Nano letters 2015
Anna Loiudice Jason K Cooper Lucas H Hess Tracy M Mattox Ian D Sharp R Buonsanti

Multicomponent oxides and their heterostructures are rapidly emerging as promising light absorbers to drive oxidative chemistry. To fully exploit their functionality, precise tuning of their composition and structure is crucial. Here, we report a novel solution-based route to nanostructured bismuth vanadate (BiVO4) that facilitates the assembly of BiVO4/metal oxide (TiO2, WO3, and Al2O3) nanoco...

Journal: :chemistry of solid materials 2013
reza ojani fakhrosadat jamali jahan-bakhsh raoof sayed reza hosseini

copper nanoparticles were fabricated by electro-reduction of cuso4solution in the presence of cetyltrimethylammonium bromide (ctab) cationic surfactant as an additive through potentiostatic method. the prepared copper nanoparticles were characterized by scanning electron microscopy (sem) and electrochemical methods. the sem images reveal that the nanoparticles with diameters at about 70 n...

Journal: :international journal of nano dimension 0
n. mastali department of chemistry, azad university, tehran north branch, tehran, iran h. bakhtiari department of chemistry, azad university, tehran north branch, tehran, iran

in this study, tio2 and zno nanofilms were prepared by sol-gel spin-coating method. nanofilms were characterized by x-ray diffraction (xrd), energy dispersive analysis of      x-ray (edx), scanning electron microscopy (sem) and field emission scanning electron microscopy (fe-esm). structural and morphological properties of nanofilms were investigated. the average crystalline size of tio2 and zn...

Journal: :journal of nanostructures 2016
shahab khaghani s. saffari

zno nanoparticles were synthesized by a microwave-assisted chemical method. zno nanostructures were synthesized via a fast reaction between zinc acetate and ammonia at presence citric acid and other effective agents in chemical procedure. nanostructures were characterized by x-ray diffraction , scanning electron microscopy. seed yield and seed quality of safflower grown under drought stress. th...

Farideh Ghadamgahi, Gholamhosein Shahidi Bonjar Masome Mehraban Sang Atash

In this research, the inhibitory effects of silver nanoparticles and zinc oxide nanoparticles,  in vitro, on disease stone fruits bacterial canker caused by Pseudomonas syrigae pv. Syringae and disease bacterial blight caused by Xanthomonas arboricola pv. juglandis, were studied. Different concentrations of nanoparticles were prepared on Mueller Hinton agar medium in two different ways in a com...

Copper oxide nanoparticles (CuO-NPs) synthesized by an implicitly environmentally benign process using Acanthospermum hispidum L. aqueous plant extract as an effective bio-oxidizing/bio-reducing agent. Phytochemical screening of the fresh aqueous leaves extract showed the presence of coumarins, tannins, saponins, phenols, flavonoids, sterols and volatile oils. Fourier transform infrared spectro...

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