Fluorescent electrospun polyvinyl alcohol/CdSe@ZnS nanocomposite fibers

被引：40

作者：

Atabey, Emre ^{[1
]}

Wei, Suying ^{[2
]}

Zhang, Xi ^{[1
]}

Gu, Hongbo ^{[1
,3
]}

Yan, Xingru ^{[1
]}

Huang, Yudong ^{[3
]}

Shao, Lu ^{[3
]}

He, Qingliang ^{[1
]}

Zhu, Jiahua ^{[1
]}

Sun, Luyi ^{[4
]}

Kucknoor, Ashwini S. ^{[5
]}

Wang, Andrew ^{[6
]}

Guo, Zhanhu ^{[1
]}

机构：

[1] Lamar Univ, Dan F Smith Dept Chem Engn, Integrated Composites Lab ICL, Beaumont, TX 77710 USA

[2] Lamar Univ, Dept Chem & Biochem, Beaumont, TX 77710 USA

[3] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China

[4] SW Texas State Univ, Dept Chem & Biochem, San Marcos, TX 78666 USA

[5] Lamar Univ, Dept Biol, Beaumont, TX 77710 USA

[6] Ocean NanoTech LLC, Springdale, AR 72764 USA

来源：

JOURNAL OF COMPOSITE MATERIALS | 2013年 / 47卷 / 25期

基金：

美国国家科学基金会;

关键词：

Polyvinyl alcohol; quantum dots; electrospinning; nanofibers; rheological behavior; fluorescence; BOMBYX-MORI SILK; POLY(VINYL ALCOHOL); POLYMER NANOFIBERS; MOLECULAR-WEIGHT; FABRICATION; PVA; SPECTROSCOPY; PARAMETERS; MORPHOLOGY; CLUSTERS;

D O I：

10.1177/0021998312463107

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Uniform and bead-free polyvinyl alcohol (PVA) and its nanocomposite fibers filled with different loadings of CdSe@ZnS quantum dots (QDs) were prepared by the electrospinning process. The incorporation of QDs into PVA solution lowered the viscosity of the system. The electrospinning parameters, including applied voltage, feed rate, and working distance were optimized to prepare high quality nanocomposite fibers. Increasing the voltage from 20 to 25kV, the average diameter of PVA fibers reduced from ca. 284 to 164nm (42.5% decrease) and the average diameter of PVA/QDs nanocomposite fibers decreased from ca. 365 to 240nm (34.2% decrease). The PVA/QDs (5.0wt%) nanocomposite fibers were examined under a fluorescent microscopy. The thermal stability was investigated by both thermogravimetric analysis and differential scanning calorimetry. Fourier transform infrared spectroscopy was utilized to characterize the functionality of the fibers and to investigate the interaction between PVA and inorganic additions. Unique fluorescent phenomenon was observed in the PVA fibers after incorporation of small amount of QDs.

引用

页码：3175 / 3186

页数：12

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