نتایج جستجو برای: fourier transform infrared spectroscopy and scanning electron microscopy

تعداد نتایج: 16968257  

The photocatalytic coatings were prepared via incorporating the modified titania nanoparticles into epoxy-based inorganic-organic hybrid coatings. Titania nanoparticles were first synthesized from tetra-n-butyl titanate using sol-gel methods by two different calcination treatments, i.e., in mild condition (80°C) and 500°C. The formed anatase nanoparticles were further modified as Titania-Silica...

Journal: :international journal of nano dimension 0
biuck habibi department of chemistry, faculty of science, azarbaijan shahid madani university, tabriz, 53714-161, iran houriyeh hadilou department of chemistry, faculty of science, azarbaijan shahid madani university, tabriz, 53714-161, iran saeed mollaei department of chemistry, faculty of science, azarbaijan shahid madani university, tabriz, 53714-161, iran alireza yazdinezhad department of pharmacognosy, faculty of pharmacy, zanjan university of medical sciences, zanjan, 45139-56184, iran

nowadays, green chemistry and its advantages are generating interest of researchers toward ecofriendly biosynthesis of the metallic nanoparticles. in this research, a rapid, simple and green method was developed for the synthesis of silver nanoparticles using aqueous extract of prangos ferulaceae leaves. the synthesized silver nanoparticles were characterized by uv-vis spectroscopy, scanning el...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

new forms of vanadium oxide nanoporous were fabricated using a simple chemical synthesis method. vanadium pentoxide (v2o5) nanoporous were synthesized by sodium metavanadate as precursor and ethylene glycol as surfactant. the samples were characterized by high resolution transmission electron microscopy (hrtem), field effect scanning electron microscopy (fesem) and x-ray diffraction (xrd), four...

Journal: :journal of sciences, islamic republic of iran 2015
s. jurablu m. farahmandjou t. p. firoozabadi

zinc oxide (zno) nanopowders were synthesized by the sol–gel method from an ethanol solution of zinc sulfate heptahydrate in the presence of diethylene glycol surfactant. detailed structural and microstructural investigations were carried out using x-ray diffraction (xrd), high-resolution transmission electron microscopy (hrtem), field emission scanning electron microscopy (fe-sem), fourier tra...

Journal: :iranian journal of pharmaceutical sciences 0
saheb ali manafi materials engineering department, islamic azad university, shahrood branch, shahrood, iran sedigheh joughehdoust materials engineering department, islamic azad university, shahrood branch, shahrood, iran

in this investigation, hydroxyapatite (hap) nanostructure with uniform morphologies, controllable size, nano-dispersion and narrow-size distribution in diameter has been synthesized successfully by low-temperature hydrothermal process, and the as-synthesized powders were characterized by energy-dispersive x-ray spectroscopy, scanning electron microscopy, high-resolution transmission electron mi...

Ardeshir Bagheri, Davood Ghanbari, Hamed Halakouie, Mahdi Mousayi Nakisa Asiabani

In this work, the investigation of wave absorption, phase formation, crystal structure and magnetic properties of SrFe12O19 hexa-ferrites nanoparticles that synthesized by co-precipitation using a microwave heating system and polyaniline-SrFe12O19 was carried out by using a combination of vector network analyser (VNA), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier tra...

Journal: :international journal of nano dimension 0
farnaz khodadadeh department of chemistry, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) parviz aberoomand azar department of chemistry, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) mohamad saber tehrani department of chemistry, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) navid assi department of chemistry, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

this paper reports the synthesis and characterization of photocatalyst cds nanoparticles for investigation of photocatalytic degradation of 2,4,6-trichlorophenol. cds nanoparticles were synthesized by the microwave-assisted sol-gel method and characterized by various techniques such as x-ray diffraction, filed emission scanning electron microscopy, energy dispersive spectroscopy, fourier transf...

Journal: :journal of nanostructures 2012
l. ghorbanian r. emadi m. razavi h. shin a. teimouri

diopside  has  been  successfully  prepared  by  a  modified  sol-gel method.optimization  in calcination temperature and mechanical ball milling  resulted  in  a  pure  and  nano-sized  powder  which characterized by means of scanning electron microscopy (sem), x-ray diffraction (xrd), transmission electron microscopy (tem) and fourier  transform  infrared  spectroscopy  (ft–ir). we  hypothesi...

2012
G Deepa Arun Kumar T Thulasidasan Ruby John Anto J Jisha Pillai GS Vinod Kumar

OBJECTIVE To investigate cross-linked hydrogels prepared via inverse emulsion polymerization to entrap poorly aqueous soluble drugs. Polyethylene glycol cross-linked acrylic polymers were synthesized and the loading and release of curcumin, a model hydrophobic drug, was investigated. METHODS Physicochemical characteristics of hydrogels were studied with (13)C nuclear magnetic resonance, Fouri...

Amirhossein Shahbazi Kootenaei Hosein Hoseini Maryam Gorjizadeh, Soheil Sayyahi,

HMCM-22 with a Si:Al molar ratio of 15:1 has been shown to effectively catalyze the synthesis of acetals with 100% selectivity by the reaction of aldehydes with methanol under reflux conditions. Platelet HMCM-22 particles were prepared by the static strategy and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), BET tech...

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