聚偏氟乙烯(PVDF)电纺纤维经NaOH/无水乙醇溶液处理,在其表面接枝马来酸酐(MAH),得到聚偏氟乙烯纤维接枝马来酸酐(PVDF-g-MAH)。FT-IR结果表明,MAH成功接枝到PVDF纤维上。以PVDF-g-MAH纤维为载体,经水热法在PVDF-g-MAH纤维表面制备PbS纳米粒子光催化剂。SEM、XRD分析显示PbS在纤维表面分布均匀,结晶状态良好。以氙灯模拟太阳光,研究了PbS/PVDF-g-MAH纤维复合材料对亚甲基蓝水溶液的降解效果,6h对亚甲基蓝的降解率达到90%。 Polyvinylidene fluoride (PVDF) electrospun fibers were treated with NaOH / ethanol solution and grafted with maleic anhydride (MAH) on the surface to obtain polyvinylidene fluoride grafted maleic anhydride (PVDF-g-MAH). FT-IR results showed that MAH was successfully grafted onto PVDF fibers. PbS nanoparticle photocatalyst was prepared on the surface of PVDF-g-MAH fiber by hydrothermal method using PVDF-g-MAH fiber as carrier. SEM, XRD analysis showed that PbS was evenly distributed on the fiber surface and the crystal state was good. The degradation effect of PbS / PVDF-g-MAH fiber composites on methylene blue aqueous solution was studied by simulating sunlight with xenon lamp. The degradation rate of methylene blue was 90% after 6 hours.