PVDF电纺纤维接枝马来酸酐及其负载PbS的光催化性能研究  

Preparation and photocatalytic properties of PbS/PVDF-g-MAH composites

作　　者：马爱勤[1] 王猛[1] 周正发[1] 徐卫兵[1] 马海红[1] 任凤梅[1] 魏亦军[2] 

机构地区：[1]合肥工业大学高分子科学与工程系,合肥230009 [2]淮南师范学院化学与化工系,淮南232001

出　　处：《化工新型材料》2011年第10期104-106,共3页New Chemical Materials

摘　　要：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%。Poly（vinylidene fluoride）（PVDF）grafted maleic anhydride（MAH） fibers were prepared through maleic anhydride（MAH） grafted to PVDF electrospun fibers,which were pretreated by NaOH/alcohol solution.Fourier transform infrared spectroscopy（FT-IR）indicated that MAH was grafted to PVDF electrospun fibers successfully.Then,Lead sulfide（PbS） particles were uniformly immobilized on the surface of the PVDF-g-MAH electrospun fibers by hydrothermal methods.The PbS/PVDF-g-MAH composites were characterized by X-ray powder diffraction（XRD）and scanning electron microscopy（SEM）.The results revealed that high-crystallinity PbS particles were distributed uniformly on the PVDF-g-MAH electrospun fibers.The degradation of methylene blue aqueous solution with the composites as the catalyst was performed under Xe lamp irradiation.The results showed that the composites had good photocatalytic efficiency.After 6 h of photocatalytic reaction,the degradation rate of methylene blue could reach to 90%.

关 键 词：聚偏氟乙烯 马来酸酐 光催化 硫化铅 

分 类 号：TQ340.1[化学工程—化纤工业]