Aggregation states of rhodamine 6G in electrospun nanofibrous films

被引：14

作者：

Wang, Hengguo ^{[1
]}

Yang, Qingbiao ^{[1
]}

Sun, Lei ^{[1
]}

Wang, Shuai ^{[1
]}

Wang, Wei ^{[1
]}

Zhang, Chaoqun ^{[1
]}

Li, Yanchun ^{[1
]}

Xu, Shufei ^{[1
]}

Li, Yaoxian ^{[1
]}

机构：

[1] Jilin Univ, Dept Chem, Changchun 130021, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2010年 / 341卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Electrospinning; Rhodamine; 6G; Aggregation; J-type dimers; TO-MONOMER TRANSFORMATION; FLUORESCENT DIMERS; ENERGY TRANSFER; XANTHENE DYES; ORIENTATION; SUBMONOLAYER; DIMERIZATION; ASSOCIATION; ADSORPTION; MOLECULES;

D O I：

10.1016/j.jcis.2009.09.044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Novel fluorescent composite nanofibrous films of rhodamine 6G (Rh6G) and polyacrylonitrile (PAN) are first prepared by electrospinning. The aggregation states of Rh6G in electruspun nanofibrous films are studied as a function of concentrations and characterized by UV-vis absorption spectroscopy and emission and excitation fluorescence spectroscopy. We have also used casting films as reference material to compare the effect of incorporation of Rh6G in electrospun nanofibrous films and casting films. The large specific surface area of the nanofibers and fast evaporation of the solvents in the electrospinning process reduced the aggregation of Rh6G. The appearance of fluorescent J-type dimers, even at higher dye concentration in elctrospun films, demonstrates that the electrospun films are an ideal material for incorporation of fluorescent dyes. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：224 / 231

页数：8

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