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.

中文翻译：

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水下脉冲放电法制备WO3纳米粒子的合成及光催化活性

水下脉冲放电用于合成三氧化钨纳米粒子。通过使用X射线衍射光谱和电子显微镜研究所得颗粒的化学组成和形貌。动态光散射用于测量平均粒径和zeta电位。发现形成平均粒径为约60nm的三氧化钨的单斜变体。通过在黑暗和紫外线照射条件下降解罗丹明 B 来评估 WO3 的光催化性能。WO3 粉末在紫外光照射 50 分钟下对罗丹明 B 的光降解 100% 表现出很好的光催化活性。