The typical photocatalyst Bi₂WO₆（BWO）has low energy efficiency due to its low specific surface area (SSA) and high photogenerated electron/hole recombination rate. In this study, a three-dimensional spherical BWO/DMPBP[5] composite was synthesized by loading DMpillar[5]arene-based porous polymer (DMPBP[5]) on BWO through hydrothermal method to correct these deficiencies. Scanning electron microscopy and transmission electron microscopy showed that the modified BWO transformed into three-dimensional spherical composite. Furthermore, BET surface area analysis further proved that compared with the original photocatalyst BWO whose SSA is 19 m²·g⁻¹, the optimized composite BWO-7% exposes more SSA with a value of 134 m²·g⁻¹, endowing it more adsorption and photocatalytic active sites. Results showed that photocatalytic reaction rate constants of BWO-7% increased by more than 10 times, compared with that of BWO. This significant improvement was due to the introduction of DMPBP[5], which could concentrate organic pollutants, thus reduce the distance between contaminants and the active site. More importantly, after DMPBP[5] was loaded, BWO/W₅O₁₄ heterojunction was formed. In the detection process, we found that oxygen vacancy was introduced in it, which was more conducive to the separation of electron/hole pairs and improved the photocatalytic performance of visible light. In addition, the adaptability to inorganic salts, pH and recycling performance of BWO composites were excellent. Altogether, this study provides the possibility for the application of new adsorption-photodegradation materials in photocatalytic water treatment.

典型的光催化剂 Bi ₂ WO ₆（BWO）由于其低比表面积（SSA）和高光生电子/空穴复合率而具有低能量效率。在这项研究中，通过水热法在 BWO 上负载 DMpillar[5] 芳烃基多孔聚合物 (DMPBP[5]) 合成三维球形 BWO/DMPBP[5] 复合材料，以弥补这些缺陷。扫描电镜和透射电镜表明改性后的BWO转变为三维球形复合材料。此外，BET比表面积分析进一步证明，与SSA为19 m ² ·g ⁻¹的原始光催化剂BWO相比，优化后的复合BWO-7%暴露出更多的SSA，值为134 m ²·g ^-1，赋予其更多的吸附和光催化活性位点。结果表明，与BWO相比，BWO-7%的光催化反应速率常数提高了10倍以上。这一显着改善归功于 DMPBP[5] 的引入，它可以浓缩有机污染物，从而缩短污染物与活性位点之间的距离。更重要的是，加载 DMPBP[5] 后，BWO/W ₅ O ₁₄异质结形成。在检测过程中，我们发现其中引入了氧空位，更有利于电子/空穴对的分离，提高了可见光的光催化性能。此外，BWO复合材料对无机盐、pH值的适应性和回收性能也非常出色。综上所述，本研究为新型吸附-光降解材料在光催化水处理中的应用提供了可能。