Flower-like CeO2-ZnO/Ti3C2Tx Derivatives Nanostructures: Synthesis and Microwave Absorption Properties

To eliminate the harmful effects of electromagnetic pollution and ensure the safety of human daily life, developing novel high-performance electromagnetic wave (EMW) absorption materials is crucial for practical applications. This work uses MXene Ti₃C₂T_x and ZIF-8 to prepare a series of Ce element doped ZIF-8/Ti₃C₂T_x composite materials with different molar contents, and obtain derivatives CeO₂-ZnO/Ti₃C₂T_x by the high-temperature pyrolysis method. Flower-like CeO₂-ZnO nanoparticles are anchored on the surface of Ti₃C₂T_x. With an appropriate molar content of Ce (4%), CZT-600-2 sample exhibits the best EMW absorption performance, with the minimum reflection loss of -44.80 dB (1.2 mm) and the optimal effective absorption bandwidth of 3.81 GHz (1.3 mm). The results reveal that rare earth element doping is an effective method to attain high performance EMW absorption materials with “thin, light, wide, strong” characteristics.