scholarly journals Synthesis and characterization of apatite silicated powders with wet precipitation method

2021 ◽  
Vol 234 ◽  
pp. 00106
Author(s):  
Houda Labjar ◽  
Hassan Chaair
Keyword(s):  
Electron Microscopy ◽  
Heat Treatment ◽  
Analytical Techniques ◽  
Precipitation Method ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Wet Precipitation ◽  
Scanning Electron

The synthesis of apatite silicated Ca10(PO4)6-x(SiO4)x(OH)2-x (SiHA) with 0≤x≤2 was investigated using a wet precipitation method followed by heat treatment using calcium carbonate CaCO3 and phosphoric acid H3PO4 and silicon tetraacetate SiC8H20O4 (TEOS) in medium of water ethanol, with three different silicate concentrations. After drying, the samples are ground and then characterized by different analytical techniques like X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Scanning electron Microscopy (SEM) and chemical analysis.

Hydrothermal Synthesis and Characterization of BiFeO3 Polyhedral Crystallites

2012 ◽  
Vol 174-177 ◽  
pp. 508-511
Author(s):  
Lin Lin Yang ◽  
Yong Gang Wang ◽  
Yu Jiang Wang ◽  
Xiao Feng Wang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Xrd Pattern ◽  
X Ray ◽  
Transmission Electron ◽  
Scanning Electron

BiFeO3 polyhedrons had been successfully synthesized via a hydrothermal method. The as-prepared products were characterized by power X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The possible mechanisms for the formation of BiFeO3 polyhedrons were discussed. Though comparison experiments, it was found that the kind of precursor played a key role on the morphology control of BiFeO3 crystals.

Synthesis and characterization of homogeneous lead-substituted tin oxide with the (110) face of rutile structure

2000 ◽  
Vol 15 (10) ◽  
pp. 2076-2079
Author(s):  
Chika Nozaki ◽  
Takashi Yamada ◽  
Kenji Tabata ◽  
Eiji Suzuki
Keyword(s):  
Electron Microscopy ◽  
Tin Oxide ◽  
Photoelectron Spectroscopy ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Rutile Structure ◽  
X Ray ◽  
Transmission Electron ◽  
Scanning Electron

Synthesis of a rutile-type lead-substituted tin oxide with (110) face was investigated. The characterization was performed by x-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive x-ray spectroscopy, infrared spectroscopy, x-ray photoelectron spectroscopy, and Brunauer–Emmett–Teller surface area measurements. The homogeneous rutile-type lead-substituted tin oxide was obtained until 4.1 mol% of tin was substituted with lead. The surface of obtained oxide had a homogeneously lead-substituted (110) face.

Synthesis and Characterization of Star-Like Copper Oxide (CuO) with Submicrometer Sizes

2012 ◽  
Vol 465 ◽  
pp. 186-191
Author(s):  
Shou Long Gong ◽  
Fang Lin Du
Keyword(s):  
Electron Microscopy ◽  
Synthesis And Characterization ◽  
Simple Liquid ◽  
Liquid Phase Deposition ◽  
Monoclinic Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

Star-like CuO with submicrometer sizes was fabricated via a simple liquid-phase deposition with the assistant of PVP and Na2MoO4. The as-prepared CuO have been characterized by X-ray diffraction(XRD) and scanning electron microscopy (SEM). The results showed that the as-prepared CuO owned monoclinic structure, the concentrations of PVP, Na2MoO4 and NaOH are very important to the morphology of CuO. The quality of PVP impacts the formation of thin flakes on the skeletons. Meanwhile, the growth of dendritic skeletons was depended on the addition of Na2MoO4, and the effect of NaOH is to control the dimension of CuO structure.

Darstellung und Charakterisierung des Silber(I,II,III)-oxidclathrates Ag7O8HCO3 / Synthesis and Characterization of the Silver(I,II,III) Oxide Clathrate Ag7O8HCO3

2000 ◽  
Vol 55 (9) ◽  
pp. 882-886 ◽  
Author(s):  
Martin Jansen ◽  
Sascha Vensky
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Scanning Electron Microscopy ◽  
Magnetic Susceptibility ◽  
Solid State Nmr ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

The silver(I,II,III) oxide clathrate Ag7O8HCO3 was synthesized by anodic oxidation of silver(I) in a suspension of Ag2CO3 in an aqueous AgF solution. The title compound was characterized by single crystal X-ray diffraction (cubic, Fm3̄m, a = 9.8085(3) Å, Z = 4), scanning electron microscopy, thermal analysis, IR spectroscopy, 1H-solid state-NMR and measurement of the magnetic susceptibility

Synthesis and Characterization of NiO Doped SnO2 Nano-Flowers

2013 ◽  
Vol 575-576 ◽  
pp. 58-60
Author(s):  
Wei Ping Tang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Fourier Transform ◽  
Infrared Spectrum ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Hydrothermal Route ◽  
X Ray ◽  
Scanning Electron

In this present work, a new method for preparing NiO doped SnO2 nanoflowers by hydrothermal route is suggested. The composition and microstructure of samples were characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and Fourier transform infrared spectrum (FTIR). Moreover, a possible formation mechanism was discussed.

Treatment of Wastewater Using Porous Ceramics of Hydroxyapatite

2014 ◽  
Vol 979 ◽  
pp. 66-69
Author(s):  
P. Chankachang ◽  
S. Chantara ◽  
S. Punyanitya ◽  
C. Saelee
Keyword(s):  
Electron Microscopy ◽  
Heat Treatment ◽  
Microstructural Characterization ◽  
Porous Ceramics ◽  
Thermal Processes ◽  
Raw Water ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

In this work, hydroxyapatite (HA) powder derived from pig bone was prepared by thermal processes. The effect of heat treatment temperatures on crystallinity and microstructure of the HA powder were studied using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The powders are uniaxially compact and then sintering at 900°C-1050°C in air. The microstructural characterization of the porous was carried out by SEM. Filtration studies using the sintered porous HA ceramic were performed for sanitary wastewater. The analysis of raw water sample and filtered water were performed. The results showed that the water permeated through the porous HA ceramics could be cleaner water to meet of environmental standard.

scholarly journals Synthesis and characterization of Ln-123 superconductors

2008 ◽  
Vol 73 (4) ◽  
pp. 479-486 ◽  
Author(s):  
Arturas Zalga ◽  
Remigijus Juskenas ◽  
Algirdas Selskis ◽  
Darius Jasaitis ◽  
Aivaras Kareiva
Keyword(s):  
Electron Microscopy ◽  
Sol Gel ◽  
Melting Process ◽  
Oxygen Stoichiometry ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Superconducting Compounds ◽  
Scanning Electron

A sol-gel method was applied to prepare precursors for NdBa2Cu3O7-x (Nd-123) and SmBa2Cu3O7-x (Sm-123) superconducting compounds. The sintered products were examined by X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The powders sintered at 950 and 1000 ?C showed the formation of monophasic Nd-123 and Sm-123 superconductors. The formation of Nd-123 and Sm-123 phases from the sol-gel derived precursors at higher temperatures (1050 and 1100 ?C), however, did not proceed due to the melting process. The correlation between the TC for different lanthanides (Ln Ho, Nd and Sm) in the Ln-123 compound and orthorhombicity and oxygen stoichiometry were also estimated.

scholarly journals Synthesis and Characterization of Erythromycin Loaded PLGA and PCL Microspheres: Antimicrobial Application

2021 ◽  
Author(s):  
Lamia Bennabi ◽  
Ilham Abedelemalek ◽  
Abedelkader Ammari ◽  
Khaldia Sediri ◽  
Fatima Bennabi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Glycolic Acid ◽  
Release Kinetics ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Complementary Effect ◽  
Kinetics Of ◽  
Scanning Electron

Abstract We presents in this work the preparation of several formulations, based on biocompatible biodegradable polymers: polycaprolactone (PCL) and poly(lactic-co-glycolic) acid (PLGA) loaded with Erythromycin (ERYT) antibiotic. These biocompatible materials were used to prepare microspheres with and without immobilized ERYT via simple evaporation method by simple emulsion. The particle size was determined by scanning electron microscopy and the absence of the interaction with ERYT was confirmed via X-ray diffraction and infrared spectroscopy. The release kinetics of ERYT were studied and then, ERYT loaded PCL and PLGA blends microspheres were used for the inhibition of gram-positive S. aureus strain. The microbial activity was carried-out by Agar diffusion disc method. The results show that PCL/PLGA blend and PCL alone inhibited the strain by ERYT present in kinetic aliquots with the complementary effect of the polymers. A numerical model was proposed for modeling the kinetics reported in our study.

scholarly journals Synthesis and Characterization of Boehmite Nanofibers

2008 ◽  
Vol 2008 ◽  
pp. 1-4 ◽  
Author(s):  
Jing Yang ◽  
Ray L. Frost
Keyword(s):  
Emission Spectroscopy ◽  
Analytical Techniques ◽  
Infrared Emission ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
High Quality ◽  
X Ray ◽  
Clear Cut ◽  
Scanning Electron

Boehmite nanofibers of high quality were synthesized through a wet-gel conversion process without the use of a surfactant. The long nanofibers of boehmite with clear-cut edges were obtained by steaming the wet-gel precipitate at 170∘C for 2 days. Analytical techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared emission spectroscopy (IES), as well as Raman spectroscopy were used to characterize the products.

Synthesis and Characterization of New Functional Material (C6H5CNH2nNH3)2PbI4(where n=0,1,2)

2011 ◽  
Vol 311-313 ◽  
pp. 2099-2105 ◽  
Author(s):  
Li Ling Guo ◽  
Xing Li ◽  
Han Xing Liu
Keyword(s):  
Electron Microscopy ◽  
Band Gap ◽  
Synthesis And Characterization ◽  
Molecular Formula ◽  
Reactant Ratio ◽  
Functional Material ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

The new functional material, the hybrids with molecular formula (C6H5CNH2nNH3)2PbI4(where N=0,1,2) were synthesized by reactions in solution. The influences of the reactant ratio and the reaction time on the structures of the products were investigated. The structures and the properties of the hybrids were characterized using X-ray diffraction(XRD), scanning electron microscopy (SEM) and ultraviolet&visible (UV) adsorption spectra . The effect of number of methylene, n, on the structure forming and the band gap magnitude has been studied. The results demenstrate that the number of methylene has effect both on the forming of the layered structure and on the magnitude of the band gap.

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