Abstract

Heterostructure Ag/AgCl/Bi₂WO₆ nanocomposites were successfully synthesized by modifying Bi₂WO₆ thin nanoplates loaded with Ag/AgCl nanoparticles on top for photodegradation of rhodamine B (RhB) under visible light irradiation. The as-prepared Bi₂WO₆ sample and heterostructure Ag/AgCl/Bi₂WO₆ nanocomposites were characterized by X-ray diffraction, scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS) and X-ray photoelectron spectroscopy (XPS). The analytical results show that metallic Ag nanoparticles and AgCl nanoparticles were supported on the surface of Bi₂WO₆ thin nanoplates. The photocatalytic efficiencies of as-prepared samples were evaluated through the degradation of RhB under visible light irradiation. In this study, the heterostructure Ag/AgCl/Bi₂WO₆ nanocomposites have the photocatalytic activity higher than pure Bi₂WO₆ sample because of the promotion for electronic diffusion between Ag/AgCl and Bi₂WO₆. The photocatalytic activity of heterostructure Ag/AgCl/Bi₂WO₆ nanocomposites was 99.00% under visible light irradiation within 45 min.

中文翻译：

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顶部负载Ag/AgCl纳米颗粒用于降解罗丹明B的Bi2WO6纳米板的合成与表征

摘要

_{通过修饰顶部负载有Ag/AgCl纳米颗粒的Bi 2} WO ₆薄纳米板，成功合成了异质结构Ag/AgCl/Bi ₂ WO ₆纳米复合材料，用于在可见光照射下光降解罗丹明B (RhB)。所制备的Bi ₂ WO ₆样品和异质结构Ag/AgCl/Bi ₂ WO ₆纳米复合材料通过X射线衍射、扫描电子显微镜(SEM)、能量色散X射线光谱(EDS)和X射线光电子能谱进行了表征。 (XPS)。分析结果表明金属Ag纳米粒子和AgCl纳米粒子负载在Bi ₂ WO _6表面。薄纳米板。通过在可见光照射下降解 RhB 来评估所制备样品的光催化效率。在本研究中，异质结构的Ag/AgCl/Bi ₂ WO ₆纳米复合材料由于促进了Ag/AgCl和Bi ₂ WO ₆之间的电子扩散而具有比纯Bi ₂ WO ₆样品更高的光催化活性。异质结构Ag/AgCl/Bi ₂ WO ₆纳米复合材料在可见光照射下45 min内的光催化活性为99.00%。