Abstract
The tungsten disulfide (WS2) nanoparticles (most probably inorganic fullerene (IF)) with a narrow size distribution were synthesized by a reverse micelle technique for the first time. The particle size was controlled by varying water-to-surfactant molar ratio (W0), aging time and reagent concentration. The synthesized WS2 nanoparticles were characterized by zetasizer, UV–visible spectrophotometers and transmission electron microscopy (TEM). The WS2 nanoparticles with particle diameter size of 7–12nm were obtained via 24h aging time. The particle size was controlled by changing the aging time and molar ratio of water/surfactant. Doubling W0 increased the amount and particle size of WS2 by 22 and 26%, respectively. The effect of aging time in the range of 6–24h was investigated and the complete disappearance of yellowish color at 24h resulted in an optically clear solution, which was the indication of WS2 formation with 100% conversion of reactant ((NH4)2WS4) in the batch reactor.
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