负载纳米金的玉米醇溶蛋白超细纤维的制备与表征  

Preparation and characterization of gold nanoparticles coated Zein ultrafine fibers spun by electrospinning

作　　者：陈晓东[1] 崔静[1] 岳亚丹 李国辉[1] 李大伟[1] 罗磊[1] 黄锋林[1] 魏取福[1] 

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122

出　　处：《功能材料》2014年第14期14118-14122,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51203064);国家高技术研究发展计划(863计划)资助项目(2012AA030313);江苏省产学研联合创新基金资助项目(BY2012068)

摘　　要：采用静电纺制备了玉米醇溶蛋白(Zein)纳米纤维,利用聚乙烯亚胺(PEI)作为还原剂和交联剂,将纳米金颗粒自组装到Zein超细纤维的表面,再通过一步还原法制备表面负载纳米金的Zein超细纤维。利用扫描电镜(SEM)和透射电镜(TEM)分别观察了负载纳米金Zein超细纤维的形貌和纳米金在纤维膜表面的分布;通过紫外分光光度法(UV-Vis),X射线衍射法(XRD)和热重分析(TGA)曲线证实了Zein超细纤维上纳米金颗粒的存在;傅里叶变换红外光谱(FT-IR)曲线和表明负载纳米金后Zein超细纤维保持了其原有化学功能基团。Zein nanofibers were prepared by electrospinning and zein ultrafine fibers were coated with Au nanop-articles （Au NPs）,using poly（ethyleneimine）（PEI）as the reducing and crosslinked agent,and then Zein ultra-fine fibers containing gold nanoparticles were prepared by one-step reduction method.The morphologies of Zein ultrafine fibers containing gold nanoparticles and the distribution of gold nanoparticles onto the surface of fi-brous membrane were observed by SEM and TEM.The results from UV-vis,XRD and TGA characterizations confirmed the existence of Au NPs coated onto the surface of Zein ultrafine fibers.The curves of FT-IR spectra indicated that the Zein ultrafine fibers coating gold nanoparticles possessed the same functional groups of origi-nal fibers.

关 键 词：纳米金颗粒 玉米醇溶蛋白 静电纺 超细纤维 

分 类 号：TQ342.94[化学工程—化纤工业]