Fabricating tungsten and tungsten-trioxide nanocomposite colloid in deionized water by electric spark discharge method
Kuo-Hsiung Tseng , Hsueh-Chien Ku , Hen-Lin Lee , Der-Chi Tien , Leszek Stobiński
AbstractIn this study, the electric spark discharge method was used to prepare tungsten (W) and tungsten-trioxide (WO3) nanocomposite colloid. A high-energy arc was used to melt a W rod, and the W ions were then ionized with a medium arc to prepare W and WO3 nanocomposite colloid at a high temperature. This preparation method was simple, fast, and effective. The particle size and zeta potential of the samples were measured with a Zetasizer and the shape, size, distribution, and crystal lattice of the W (0.225 nm) and WO3 (0.355 nm) nanoparticles were observed and compared using a Transmission Electron Microscope. The optical properties of the nanocomposite colloids were measured with a UV–visible spectrophotometer (UV–Vis). X-ray diffraction and a Raman Spectrometer were used to detect the crystal properties of the W and WO3 nanoparticles. The results showed that the components of the nanocomposite colloid were W and WO3. The average size of the nanoparticles was 79.65 nm and the zeta potential was − 52.5 mV; thus, the W and WO3 nanoparticles had the suspension effect. There was a peak at 320 nm according to UV–Vis, which is the characteristic absorbance of W and WO3.
|Journal series||Journal of Cluster Science, ISSN 1040-7278, (A 20 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||ESDM, tungsten nanoparticle, tungsten-trioxide nanoparticle, nanocomposite colloid|
|ASJC Classification||; ; ;|
|Score|| = 20.0, 08-05-2019, ArticleFromJournal|
= 20.0, 12-03-2019, ArticleFromJournal
|Publication indicators||= 0; : 2017 = 0.436; : 2017 = 1.715 (2) - 2017=1.489 (5)|
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