A novel 1D-2D hierarchical catalyst comprising of Co₃ZnC/Co nanoparticles (NPs) confined in N-doped carbon nanotube-grafted graphitic carbon nanoflakes (Co₃ZnC/Co@NCNTFs) has been reasonably designed and constructed in situ by controllable pyrolysis of bimetallic CoZn-ZIF in N₂. The 1D N-doped CNTs with closed ends can afford fast electron transportation path, extra interface/dipole polarization, more exposed active sites as well as hierarchical structure to achieve excellent charge transfer and microwave (MW)-harvesting ability. Benefiting from the grafted CNTs structure, well-dispersed/confined Co₃ZnC/Co NPs, thin carbon protective layer as well as good impedance matching, the resulting Co₃ZnC/Co@NCNTFs exhibit remarkable catalytic activities in both MW-driven oxidation of lomefloxacin (LOM) and direct reduction of 4-nitrophenol (4-NP). Moreover, the oxidation and reduction process can be well-explained by Localized surface plasmon resonance (LSPR) effect and electronic relay mechanism, respectively. This work offers a simple strategy to construct 1D-2D architectures in situ and elucidates their potential applications in environmental water restoration.

通过可控制的热解过程，合理地设计和构造了一种新型的一维二维分层催化剂，该催化剂由限制在氮掺杂碳纳米管接枝的石墨碳纳米薄片（Co ₃ ZnC / Co @ NCNTFs）中的Co ₃ ZnC / Co纳米颗粒（NP）构成N ₂中双金属CoZn-ZIF的合成。具有封闭端的1D N掺杂CNT可提供快速的电子传输路径，额外的界面/偶极极化，更多的暴露活性位点以及分层结构，以实现出色的电荷转移和微波（MW）捕获能力。得益于接枝的CNT结构，良好分散/约束的Co ₃ ZnC / Co NP，薄碳保护层以及良好的阻抗匹配，所得的Co ₃ZnC / Co @ NCNTFs在MW驱动的洛美沙星（LOM）氧化和4-硝基苯酚（4-NP）的直接还原中均表现出显着的催化活性。此外，氧化和还原过程可以分别通过局部表面等离子体共振（LSPR）效应和电子中继机制得到很好的解释。这项工作提供了一种就地构建1D-2D架构的简单策略，并阐明了它们在环境水修复中的潜在应用。