ZIF-67-induced double-tubular 1D CeO₂/Co₃O₄ heterostructures have been prepared by an electrospinning method with tunable morphological evolution mechanism. As the adding amount of ZIF-67 increasing, the morphologies of CeO₂-based nanomaterials are changed from porous granular nanobelt to smooth curly shape, and finally formed a double-tubular structure. The optimal CeO₂/Co₃O₄ products consisting of well-dispersed double-tubular nanostructure with the external diameter of about 200 nm display high specific surface area of 196.05 m²g⁻¹ and superior photocatalytic performance of methylene blue (MB). The rapid degradation rate of 97% within 40 min and high cycling stability without significant decrease of photocatalytic activity could be attributed to the unique electron transfer synergetic mechanism based on the combination of double-tubular microstructure and CeO₂/Co₃O₄ heterojunctions.

ZIF-67诱导的双管1D CeO ₂ / Co ₃ O ₄异质结构是通过电纺丝法制备的，具有可调节的形态演化机理。随着ZIF-67的添加量增加，基于CeO ₂的纳米材料的形态从多孔的颗粒状纳米带变为光滑的卷曲形状，并最终形成双管状结构。最佳的CeO ₂ / Co ₃ O ₄产物由分散良好的外径约为200 nm的双管状纳米结构组成，显示出高比表面积196.05 m ² g ^-1和亚甲基蓝（MB）的优异光催化性能。在40分钟内97％的快速降解率和高循环稳定性而不会显着降低光催化活性，这可归因于基于双管微结构和CeO ₂ / Co ₃ O ₄异质结的独特的电子转移协同机制。