中文摘要：

碳纳米多孔宏观体是指由碳纳米材料自组装形成的宏观多孔材料。该材料保持了碳纳米材料大的比表面积及化学、热稳定性,对水体中的污染物,如油污、染料分子及重金属离子等具有良好的吸附性能。此外,该类材料具有宏观结构及稳定的机械性能,方便操作,且易实现所吸附物的回收及吸附材料的再生。因此,碳纳米多孔宏观体成为碳纳米材料研究和应用的热点。本文梳理了碳纳米多孔宏观体的制备及其在水处理中的应用,包括碳纳米多孔宏观体的制备、污染物吸附及材料再生等。首先对碳纳米多孔宏观体用于水体净化的背景进行了介绍,之后,按照组成单元不同,将碳纳米多孔宏观体按照碳纳米管多孔宏观体,石墨烯多孔宏观体,碳纳米纤维多孔宏观体及碳纳米粒子多孔宏观体进行了分类。第三部分,详细介绍了制备碳纳米多孔宏观体的三种常见方法并分别讨论了各种方法的优缺点及所制备产物的性质。第四部分,按照不同污染物种类讲述了碳纳米多孔宏观体在水体净化中的应用。最后,针对碳纳米多孔宏观体在水体吸附应用中存在的问题进行了分析及展望。

英文摘要：

Porous carbon macrostructures are blocks consisting of carbon nanostructures,for example,nanowires,nanotubes,nanosheets and nanoparticles.They inherit the large surface area of the nanostructures,which have high temperature and chemical stability,showing excellent performance in adsorption of oil,small organic molecules and ions of heavy metal in water.In addition,due to the macro-block structure with high mechanical strength,they are easy for manipulation and separation from water after use,which is beneficial for the recycling of both absorbent and adsorbate.The synthesis of carbon macrostructures and their application in water purification is a hot topic in chemistry,material sciences and environmental chemistry in recent few years.In this review,the synthesis of carbon macrostructures and their application in water purification,including filtration and adsorption,and their recycling are summarized.Firstly,the background for the need of carbon macrostructures for water purification is proposed,then,carbon macrostructures with different basic unit are discussed.In the third part,three main different methods to synthesize carbon macrostructures and their advantages and limitations are discussed separately.In the fourth part,the application of carbon macrostructures in the water purification is discussed in detail in three different aspects：for oil removal,adsorption of dye molecules and ions of heavy metal.At last,the challenges for the carbon macrostructures in the pollutant removal for water and their prospects are proposed.