Because of abundant oxygen-based groups, natural cotton is adopted as the precursor to in situ fabricate a three-dimensional (3D) Bi₂O₃-supported carbon fiber aerogel (Bi₂O₃/CF). The calcination temperature plays an important role in the crystal composition of Bi species and the specific surface area of the aerogel. When the calcination temperature is 800 °C, the Bi₂O₃/CF product exhibits the highest tetracycline (TC) removal efficiency, including large adsorbability and superior photocatalytic activity. Furthermore, its 3D porous network architecture provides a multidimensional open framework for the free mobility of solution and rapid diffusion of reactants and products. In the flowing system, the 3D Bi₂O₃/CF aerogel can implement the continuous and stable elimination of pollutants for a long time, and it does not require any separation operation. Consequently, the 3D Bi₂O₃/CF aerogel is expected as a promising functional material to massively remove organic pollutants from industrial wastewater.

由于含氧基团丰富，采用天然棉作为前驱体原位制备三维（3D）Bi ₂ O ₃负载碳纤维气凝胶（Bi ₂ O ₃ /CF）。煅烧温度对Bi物种的晶体组成和气凝胶的比表面积起着重要作用。当煅烧温度为 800 ℃时，Bi ₂ O ₃/CF 产品表现出最高的四环素 (TC) 去除效率，包括大的吸附性和优异的光催化活性。此外，其 3D 多孔网络架构为溶液的自由流动和反应物和产物的快速扩散提供了多维开放框架。在流动系统中，3D Bi ₂ O ₃ /CF 气凝胶可以实现长时间连续稳定去除污染物，不需要任何分离操作。因此，3D Bi ₂ O ₃ /CF 气凝胶有望成为一种很有前途的功能材料，可大量去除工业废水中的有机污染物。