面向水净化、能源和环境等领域对高性能纳滤膜的重大需求、针对氧化石墨烯（GO）纳滤膜的通量低、孔径难精确控制、GO纳米片尺寸较大的难题，提出氢氧化镍纳米片牺牲层在制备大孔基膜上富勒烯（C60）插层GO超薄纳滤膜的成膜原理，构建具有“砖墙”结构的大通量、孔径精确控制的GO纳滤膜。重点开展：1）小尺寸GO纳米片的制备和C60的氨基功能化；2）基于“砖墙”构架结构的作用原理、以GO纳米片为“砖”、氨基功能化C60分子为“粘结剂”经缩合反应构建结构稳定的C60插层GO超薄纳滤膜，研究成膜原理及制膜工艺；3）C60调控GO膜层间距的作用机理，GO尺寸对膜结构和性能的影响规律。获得的成膜原理、GO膜层间距的作用机理及GO纳滤膜的构-效关系，可为高性能二维纳米材料纳滤膜的研究提供新思路和理论指导，具有重要的科学意义；制备的大通量、孔径分布窄的纳滤膜，可为水净化等领域提供高性能纳滤膜，具有良好的应用价值。

High performance nanofiltration membranes are very important for membrane separation processes, and greatly demanded in the water purification, energy and environment fields. However, it is still a big challenge to fabricate the GO-based nanofiltration membranes with high permeation flux and precise pore size. Currently, the GO-based nanofiltration membranes usually have low permeation fluxes, especially in which the interlayer spacing in the GO nanosheets is difficult to control precisely. Meanwhile, the size of GO nanosheets must be bigger than the pore size of supports for the membrane prepared by filtration. Here we present a novel approach to fabricate the ultrathin GO nanofiltration membranes by using the sacrificial layer of nickel hydroxide nanosheets, in which sandwich-type nanosheets of GO and fullerenes C60 are stacked into the laminar membranes. The intercalation of C60 precisely modulate the interlayer spacing of GO membranes. The fabricated membranes should have the high flux and precise pore size with narrow distribution. This work will study on the preparation of nano-size GO nanosheets, synthesis of amino grafted C60 molecules, fabrication and characterizations of the C60 intercalated GO nanofiltration membranes, regulatory mechanism of d-space of GO nanosheets, and structure-related performance of the membranes. Furthermore, effects of C60 content, grafting groups, and size of GO nanosheets on structure and separation performances of the as-fabricated membrane will be studied. This work will produce new insights into the design and fabrication of GO-based nanofiltration membranes with high flux for water purification, environmental remediation, and others fields.