The heterostructured Bi₂O₃–Bi₂WO₆ nanocomposites with superior photocatalytic performance have been synthesized by the mechanical alloying method. Both nanosheet and nanoflower-like morphologies are obtained after different durations of milling. The semiconductor-semiconductor (S–S) heterojunction formation with the NHE (normal hydrogen electrode) scale is revealed from the band positions of Bi₂O₃ and Bi₂WO₆. Detailed microstructures of all nanocomposites have been characterized by the Rietveld refinement of XRD patterns and analyzing TEM images.The morphological hierarchy and changes of all samples have been disclosed in FESEM images. The bandgap value and the visible-light-driven (VLD) photocatalytic activity of all samples have been measured from the UV–vis absorbance spectra. The Rhodamine B (RhB) dye degradation performance of the photocatalyst, its reusability, and active radical species involved in the photocatalytic reaction in all nanocomposites are obtained by analyzing UV–vis absorbance spectra.The EDX elemental mapping reveals the stability of the photocatalyst. The photocatalytic performance of all milled samples has been investigated through the degradation of RhB dye in an aqueous solution under solar light in the presence. A significant amount (~87%) of RhB degradation within 240 min has been achieved with the 5h milled Bi₂O₃-WO₃ nanocomposite_.

通过机械合金化法合成了具有优异光催化性能的异质结构Bi ₂ O ₃ -Bi ₂ WO ₆纳米复合材料。在不同的研磨时间后，均获得了纳米片和类似纳米花的形态。从Bi ₂ O ₃和Bi ₂ WO ₆的能带位置揭示了具有NHE（正氢电极）标度的半导体-半导体（S-S）异质结的形成。。通过X射线衍射图的Rietveld精炼和分析TEM图像来表征所有纳米复合材料的详细微观结构.FESEM图像中已公开了所有样品的形态层次和变化。所有样品的带隙值和可见光驱动（VLD）的光催化活性均已根据UV-vis吸收光谱进行了测量。罗丹明B（RhB）染料对光催化剂的降解性能，可重复使用性以及所有纳米复合材料中光催化反应中涉及的活性自由基种类均通过分析UV-vis吸收光谱获得。EDX元素图谱显示了光催化剂的稳定性。已经通过在阳光下在水溶液中降解RhB染料来研究所有研磨样品的光催化性能。₂ O ₃ -WO ₃纳米复合材料_。