نتایج جستجو برای: x ray diffraction and ftir
تعداد نتایج: 16938614 فیلتر نتایج به سال:
metal oxides play a very important role in many areas of chemistry, physics and materials science.the metal elements are able to form a large diversity of oxide compounds. in this investigation, wesynthesis sno2 and c,n,s-tridoped sno2 nanoparticles by precipitation method. the synthesizedsno2 and c,n,s-tridoped sno2 nanoparticles were characterized by instrumental analysis methods,such as x-ra...
Nanoparticles of barium carbonate/oxalate have been synthesized in situ from barium nitrate and ammonium carbonate/oxalate by reverse micelle method. These particles were characterized using transmission electron microscope (TEM), fourier transform infrared (FTIR) and x-ray diffraction (XRD). The results indicate that rod-like barium carbonate (BaCO3) and spherical barium oxalate (BaC2O4) nanop...
The purpose of the current research is investigating the phenylalanine removal by using magnetic nanoparticles (Fe3O4) from water samples. The effect of pH, contact time and phenylalanine concentration on phenylalanine adsorption efficiency by magnetite nanoparticles are studied in a batch system. Transmission electron microscopy (TEM), X-ray Diffraction Patterns (XRD) and...
in this thesis, barium ferrite nano particles were prepared by sol-gel method. their structural and magnetic properties of samples have been investigated using thermo gravimetric analysis (tg-dta), x-ray powder diffractometer (xrd), fourier transform infrared (ftir), scanning electron microscopy (sem), field emission scanning electron microscopy (fesem), ac susceptometer, vibrating sample magne...
incorporation of [fe(bipy)cl4][bipy.h] (1) (where bipy is 2,2′-bipyridine) in the molecular sieves of the type lta, nay and mesoporous al-mcm-41 by using a “ship in a bottle synthesis” approach was investigated. [fe(bipy)cl4][bipy.h] was successfullyincorporated in the channels ofmesoporousal-mcm-41, and the product was characterized by x-ray diffraction, ftir and bet analysis. it was fou...
objective(s): chitosan nanoparticles (cnps) were prepared based on the ionic gelation of chitoan with anionic compounds of ocimum basilicum leaf extract. materials and methods: after addition of ocimum basilicum leaf extract to chitosan solution, the physicochemical properties of the nanoparticles were determined by field emission scanning electron microscope (fesem), fourier transform infrared...
introduction: the aim of this study was to compare the chemical compounds of white proroot mineral trioxide aggregate (wmta) hydrated at different ph environments. methods and materials: mixed samples of wmta were kept in acidic (ph=5.4), neutral (ph=7.4) and alkaline (ph=9.4) environments for 48 h. then, x-ray diffraction (xrd) analysis was performed for both hydrated and powder forms of wmta....
oxide nanoparticles can exhibit unique physical and chemical properties due to their limited size and a high density of corner or edge surface sites. in this study, mgo nanoparticle was synthesized using mg(ch3coo)2 and hexamethylenetetramine as starting materials. the structure and optical properties of these particles are investigated by using x-ray diffraction (xrd), scanning electron micros...
the magnetite (fe3o4) – agar nanocomposite was prepared by co-precipitation of fe (iii) and fe (ii) ions for the first time. the obtained samples were characterized by x-ray diffraction, fourier-transform infrared spectroscopy, scanning electron microscopy and transmission electron microscopy. ft-ir results confirm the formation of fe3o4 nanoparticles in agar matrix. the xrd results revealed th...
The ternary blends consisting of Chitosan (CS), Nylon6 (Ny6) and Polyurethane foam (PUF) were prepared by solution blending method. The Structural, thermal and morphological studies were performed by Fourier transform infrared spectroscopy (FTIR), Thermo gravimetric analysis (TGA), X-ray diffraction (XRD) and Scanning electron microscope (SEM). The FTIR results showed intermolecular hydrogen bo...
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