Paper Information

Journal:   NANOMATERIALS (JOURNAL OF NANOCOMPOSITE MATERIALS RESEARCH)   FALL 2009 , Volume 1 , Number 3; Page(s) 193 To 200.
 
Paper: 

INVESTIGATION ON SYNTHESIS OF ZINC SILICATE (ZN2SIO4) NANOSTRUCTURED PARTICLES BY SOL-GEL

 
 
Author(s):  BARANI D., SARRAF MAMORY R.*, KOKABI M.
 
* TEHRAN, TARBIAT MODARES, ENGINEERING DEPARTMENT, MATERIALS GROUP
 
Abstract: 
In this study, zinc silicate (Zn2SiO4 ) nanostructured particles have been synthesized by sol-gel process using zinc nitrate and tetra ethyl oxysilane (TEOS) precursors. Results have been shown information of amorphous and crystalline structures during increasing of calcination temperature. Structural evolutions of gel and calcined gel in different temperatures have been investigated using DTA and XRD analyses, respectively. Due to XRD analysis of calcined samples in 800 and 900o C, and Scherrer equation has been obtained grain size 13 and 27 nm, respectively. Also, DTA analysis of precursors has been shown endothermic reaction of solvents evaporation and decomposition organic phases, and exothermic reaction of Zn2SiO4 composition. Furthermore, SEM observations showed negligible difference between powder size of amorphous precursors and crystalline Zn2SiO4 were between 50 and 400 nm. Moreover, UV-visible spectroscopy analysis for photocatalyst properties has been shown acceptable results.
 
Keyword(s): ZN2SIO4 NANOSTRUCTURED PARTICLES, TEOS, ZINC NITRATE, SOL-GEL PROCESS, PHOTOCATALYST
 
References: 
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