Immobilization of Gold Nanoparticles into Electrospun Polymer Nanofibers: Synthesis, Characterization,and Catalytic Applications
We report the immobilization of gold nanoparticles (AuNPs) into electrospun polyethyleneimine (PEI) /polyvinyl alcohol (PVA) nanofibers and the catalytic applications of the formed composite nanofibers. In this study, electrospun PEI/PVA nanofibers with a diameter of 490 nm was first complexed with Au (Ⅲ) ions via the binding of amine groups of PEI presented within the nanofibers, followed by reductive formation of AuNPs. The formed AuNPs with a diameter of 11.8 nm within the nanofibers does not significantly change the morphology of the nanofibers. Scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, and thermogravimetric analysis were used to characterize these hybrid nanofibers. Furthermore, we show that the AuNP-containing nanofibers display excellent catalytic activity and reusability toward the transformation of 4-nitrophenol to 4-aminephenol. Given the unique fibrous structures with high surface area to volume ratio and high porosity, we expect that the formed hybrid nanofibers could be used as highly efficient and recoverable catalysts. Such preparation of the AuNP-containing nanofibers may be extended for preparation of other nanoparticle-containing nanofibers for various applications in catalysis, sensing, and biomedical sciences.
gold nanoparticles electrospinning hybrid nanofibers catalysis
FANG Xu XIAO Shi-li SHEN Ming-wu GUO Rui SHI Xiang-yang
College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, P College of Textiles, Donghua University, Shanghai 201620, P. R. China
国际会议
2010 International Forum on Biomedical Textile Materials(2010国际纺织生物医用论坛)
上海
英文
380-383
2010-05-28（万方平台首次上网日期，不代表论文的发表时间）