Graphene exhibits outstanding mechanical,electrical,thermal,and optical properties,showcasing immense potential in enhancing the performance of polyimide composites.The unique two?dimensional characteristics of graphene allow for easy structural design and functional modification,presenting new opportunities for synthesizing polyimide composites with special functionalities.This review article provides a comprehensive overview of the research progress in graphene/polyimide nanocomposites in areas such as conductivity,mechanical properties,thermal properties and electromagnetic shielding.A systematic analysis was conducted on the influence of graphene's structure and functional modification on the performance of graphene/polyimide nanocomposites.Additionally,the application domains of different types of graphene/polyimide composites were discussed,with a detailed exploration of the interface interactions between graphene and the polyimide matrix and their impact on the properties of the nanocomposites.This article serves as a reference and inspiration for the subsequent development of multifunctional and high?performance graphene/polyimide nanocomposites.

Graphene oxide has become a popular material for research in recent years due to its unique physical and chemical properties. The preparation, functionalization, and application of graphene based composite membrane materials have become cutting?edge and popular topics. This article reviews the assembly methods and performance research of graphene oxide based composite membrane materials, including graphene oxide based composite Langmuir?Blodgett (LB) film, graphene oxide based composite electrospinning film, and other graphene oxide based composite films. It summarizes the recent research progress of graphene oxide based composite films and prospects their application prospects.

Controlling the use of fossil fuels and promoting the development of alternative new and clean energy sources is consistent with the theme of synergistic development between resource development and environmental protection. As a green energy source with high energy density, nuclear energy can be widely applied to alleviate the energy shortage in our country. The proven uranium resource content in seawater is more than 1 000 times higher than that in uranium mines. Extracting uranium from seawater is a potential way to ensure the long?term supply of uranium resource and the sustainable development of nuclear power. Adsorption has emerged as one of the effective methods for extracting uranium from seawater due to its advantages of high adsorption efficiency, simple operation, low cost, and environmentally friendly. However, the adsorption faces a number of challenges when extracting uranium from seawater, such as the extremely low concentrations of uranium in seawater and their stable existence in the form of Ca₂UO₂(CO₃)₃ or [UO₂(CO₃)₃]^4-, as well as a large variety and quantity of coexisting ions. Therefore, the preparation of high?performance adsorbents to achieve efficient and selective separation and enrichment of uranium in seawater is one of the important research topics in the field of environmental science. In this review, the types of adsorbents for uranium extraction from seawater and the performance enhancement strategies of their properties are briefly introduced, with the aim of helping researchers in this field design promising adsorbents for practical seawater uranium extraction.