scholarly journals Synthesis and Characterization of ZnS Nanoparticles Using Co-precipitation Method

2020 ◽  
pp. 26-33
Author(s):  
S. Mohanapriya ◽  
M. Vennila ◽  
S. Kowsalya
Keyword(s):  
Sodium Sulfide ◽  
Optical Characterization ◽  
Precipitation Method ◽  
Synthesis And Characterization ◽  
Precipitation Reaction ◽  
Zns Nanoparticles ◽  
X Ray ◽  
Homogeneous Chemical ◽  
Co Precipitation

ZnS nanoparticles were prepared from homogeneous chemical co-precipitation reaction by using zinc acetate, sodium sulfide [Na2S] and Poly Vinyl Polypyrrolidone [PVP]. The basic, morphological, and optical properties of the synthesized nanoparticles were characterized using Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), Energy Dispersive X-ray Analysis (EDX) and Ultraviolet-Visible (UV-Vis) absorption. The structural and optical characterization of the samples observed by SEM, FTIR, EDX and UV-Vis spectrometer showed that ZnS nanoparticles were formed.

scholarly journals Synthesis and characterization of AgFeO2 delafossite with non-stoichiometric silver concentration

Nukleonika ◽  
2017 ◽  
Vol 62 (2) ◽  
pp. 165-170 ◽  
Author(s):  
Karolina Siedliska ◽  
Tomasz Pikula ◽  
Dariusz Chocyk ◽  
Elżbieta Jartych
Keyword(s):  
Powder Diffraction ◽  
Room Temperature ◽  
Silver Concentration ◽  
Interaction Parameters ◽  
Precipitation Method ◽  
Synthesis And Characterization ◽  
X Ray ◽  
Delafossite Structure ◽  
Co Precipitation

Abstract The simple co-precipitation method was used to prepare AgxFeO2 delafossite with non-stoichiometric silver concentration in the range of x = 0.05-1. The obtained material was investigated using X-ray powder diffraction and 57Fe Mössbauer spectroscopy at room temperature. The structural and hyperfi ne interaction parameters were recognized in relation with decreasing silver concentration. The study revealed that the delafossite structure of AgxFeO2 was maintained up to x = 0.9; as the range of silver concentration was decreased to 0.05 ≤ x ≤ 0.8, a mixture of AgFeO2, Fe2O3 or/and FeOOH was formed.

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.

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