PVA/DTC纳米纤维的制备及对铅离子的吸附行为  

Preparation of PVA /DTC Nanofibers and Their Adsorption Performance of Lead Ion

作　　者：张谦[1] 夏柯[2] 刘丽[1] 刘又畅[1] 张翠[1] 刘璇[1] 徐缓 陈世金 陈际达[1] 

机构地区：[1]重庆大学化学化工学院,重庆400044 [2]煤炭资源与安全开采国家重点实验室重庆研究中心,重庆400042 [3]博敏电子股份有限公司,梅州514000

出　　处：《高等学校化学学报》2013年第11期2667-2673,共7页Chemical Journal of Chinese Universities

基　　金：广东省教育部产学研结合项目(批准号:2012A090300007);重庆大学大型仪器设备开放基金(批准号:2011121548)资助

摘　　要：通过高压静电纺丝技术制备了聚乙烯醇/聚乙烯亚胺(PVA/PEI)纳米纤维膜,对纤维膜进行功能化使其转化为对重金属离子具有高络合能力的聚乙烯醇/二硫代氨基甲酸盐功能化聚乙烯亚胺(PVA/DTC)纳米纤维膜.研究了PVA/PEI纳米纤维膜的交联和功能化以及PVA/DTC纤维膜对铅离子的吸附行为.结果表明,高压静电纺丝法可制备出纤维直径分布均匀、形貌良好的纳米纤维膜,且交联、功能化后仍能保持蓬松纳米纤维状的网状结构.PVA/DTC纳米纤维膜对铅离子吸附速率快,吸附量容量高,且具有良好的再生吸附能力,是一种潜在的重金属离子高效吸附材料.Polyvinyl alcohol /polyetherimide( PVA /PEI) nanofibers were fabricated by electrospinning. Subsequently,the nanofibers were functionalized with carbon disulfide to form polyvinyl alcohol / dithiocarbamates(PVA/DTC) nanofibers with higher adsorption capacity for heavy metal ions. The adsorption performance of PVA / DTC nanofibers for lead as well as the crosslinking and functionalization reaction PVA / PEI were investigated. The experimental data show that the fibers have diameters in hundreds nanometers and good appearance. The microstructure of nanofiber almost kept unchanged after crosslinking process and functionalization.The PVA / DTC nanofibers with good regeneration power possess much rapid adsorption and higher adsorption capacity. It is potential adsorption material for efficently removal heavy metal ions from waste water.

关 键 词：静电纺丝 PVA DTC纤维 吸附行为 移除重金属离子 铅离子 

分 类 号：O631[理学—高分子化学]