Heterostructure Ag/Bi₂WO₆ nanocomposites with different weight contents of Ag nanoparticles for photodegradation of rhodamine B (RhB) were successfully synthesized by solution precipitate-deposition method using sodium borohydride (NaBH₄) as a reducing agent. The results of X-ray diffraction (XRD) and transmission electron microscopy (TEM) certify the successful synthesis of cubic Ag nanoparticles supported on the surface of orthorhombic Bi₂WO₆ nanoplates. X-ray photoelectron spectroscopy (XPS) revealed the presence of metallic Ag species supported on Bi₂WO₆ nanoplates. The photocatalytic performance of heterostructure Ag/Bi₂WO₆ nanocomposites were investigated through the degradation of RhB under visible light irradiation. In this research, Ag/Bi₂WO₆ nanocomposites exhibited excellent chemical stability and recyclability under visible light irradiation. The 5 wt% Ag/Bi₂WO₆ showed the highest photodegradation of RhB due to the Ag nanoparticles acting as an electron trapper, to restrain the recombination of photo-induced electrons and holes, to improve the charge separation, and to enhance the photocatalytic performance of Bi₂WO₆.

中文翻译：

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Bi 2 WO 6纳米板上负载的Ag纳米粒子的合成及表征，用于增强罗丹明B的可见光驱动光催化降解。

以硼氢化钠（NaBH ₄）为还原剂，通过溶液沉淀法成功地合成了不同重量比的纳米级Ag纳米颗粒的复合结构Ag / Bi ₂ WO ₆纳米复合物，用于光化学降解罗丹明B（RhB）。X射线衍射（XRD）和透射电子显微镜（TEM）的结果证明了正交晶Bi ₂ WO ₆纳米板表面负载的立方Ag纳米颗粒的成功合成。X射线光电子能谱（XPS）揭示了Bi ₂ WO ₆纳米板上负载的金属Ag的存在。Ag / Bi ₂ WO异质结构的光催化性能通过在可见光照射下降解RhB来研究_6种纳米复合材料。在这项研究中，Ag / Bi ₂ WO ₆纳米复合材料在可见光照射下表现出优异的化学稳定性和可回收性。5wt％的Ag / Bi ₂ WO ₆表现出最高的RhB光降解，这是由于Ag纳米粒子充当电子陷阱，抑制了光诱导电子和空穴的复合，改善了电荷分离，并增强了光催化作用。 Bi ₂ WO _6的性能。