Synthesis and Photocatalytic Activity of WO3 Nanoparticles Prepared by Underwater Impulse Discharge
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An underwater impulse discharge was used for synthesis tungsten trioxide nanoparticles. The chemical composition and morphology of obtained particles were studied by using X-ray diffraction spectroscopy and electron microscopy. The dynamic light scattering was used to measure the average particle diameter and zeta-potential. It was found that a monoclinic modification of tungsten trioxide was formed with an average particle diameter of about 60 nm. The photocatalytic performance of WO3 was estimated through the degradation of Rhodamine B under dark and UV irradiation conditions. The powder of WO3 exhibited great photocatalytic activity for photodegradation of Rhodamine B of 100% under UV irradiation for 50 min.
KeywordsPlasma Tungsten trioxide Underwater discharge Photocatalytic activity
Authors would like to thank the Dr. P. Smirnov for conducting XRD analysis, Dr. S. Guseinov for conducting thermogravimetric analysis and Dr. N. Kochkina for conducting DLS measurements at the center of joint use of scientific equipment (the Upper Volga Regional Center for Physical–Chemical Research, Russia) and the Mr. A. Ovtsyn for conducting SEM analysis (Interdepartmental Laboratory of Structural Analysis Methods at the Ivanovo State University of Chemistry and Technology). This work is supported by the Russian Science Foundation under Grant 19-73-00022.
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