中文摘要：

为了提高聚丙烯腈（PAN）基材料的过滤性能,采用静电纺丝的方法制备了含有不同质量分数石墨烯的PAN/石墨烯纳米纤维复合材料。并对复合材料的过滤效果及抗菌性能进行研究,探讨气流量及孔径分布对过滤效果的影响。研究结果表明：当氧化石墨烯（GO）的质量分数为0.3%时,纺制的纤维平均直径为103 nm,复合膜的过滤性能最好;纳米复合材料的过滤效率随气流量的增加而减小,孔径尺寸分布在1.3-1.7μm之间时最有利于过滤效率的提高;当GO和还原性氧化石墨烯（r GO）质量分数均为0.3%时,PAN/GO纳米复合材料比PAN/r GO纳米复合材料的过滤性能好,PAN/GO和PAN/r GO纳米复合材料对大肠杆菌的抑菌率分别为32.4%和40.5%,对金黄色葡萄球菌的抑菌率分别为45.8%和56.7%。

英文摘要：

In view of polyacrylonitrile （PAN） as filter material with the influence on air filtration performance factors, the electrospun graphene/PAN composite membranes containing different contents of graphene were prepared. Filtration efficiency and antibacterial property of membranes were tested, and the influences of air flow rate and pore size distribution membranes on filtration efficiency were studied. Results showed that when the content of graphite oxide （GO） is 0.3%, the average diameter of nanofibers was 103 nm and the filtration efficiency of the composite membrane reaches to maximum; the filtration efficiency of the composite membrane decreases with the increase of flow rate, and pore size between 1.3 - 1.7 p.m was best for improvement of the membrane filtration efficiency; and when the contents of GO and reductive graphite oxide （rGO） were 0.3% , the filtration efficiency of the GO/PAN composite membrane was better than that of the rGO/PAN composite membrane, and though the antibacterial property was the opposite, namely the antibacterial experiment results were PAN/GO and PAN/rGO nanocomposite bacteriostatic rate of E. coli were 32.4% and 40.5%, respectively, the inhibition rate of Staphylococcus aureus were 45.8% and 56.7% , respectively.