Preparation and self-assembly of graphene oxide-dye composite Langmuir films: Nanostructures and aggregations

被引:21
|
作者
Song, Jingwen [1 ]
Ma, Kai [1 ]
Jiao, Tifeng [1 ,2 ]
Xing, Ruirui [1 ]
Zhang, Lexin [1 ]
Zhou, Jingxin [1 ]
Peng, Qiuming [2 ]
机构
[1] Yanshan Univ, Sch Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China
[2] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Composite Langmuir film; Self-assembly; Graphene oxide; Aggregation; Dye; RAMAN-SPECTROSCOPY; RHODAMINE-B; DISPERSIONS; FABRICATION; CONDUCTIVITY; FLUORESCENCE; NANOSHEETS; GRAPHITE;
D O I
10.1016/j.colsurfa.2017.06.071
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
Graphene oxide (GO)-based nanocomposite films via facile and appropriate self-assembly methods have demonstrated many potential applications in wide fields. This study demonstrates a facile and clean route to prepare graphene oxide-dye composite films using Langmuir-Blodgett (LB) technique at room temperature. By electrostatic interaction between cationic dye molecules and negatively charged GO sheets as well as pi-pi interactions, GO-dye composite LB films were formed spontaneously. As a soft platform for dye molecules, GO sheets induce dye molecules to self-assemble and form highly ordered structures containing H-aggregates and/or J-aggregates. The morphological characterization results show the formation of GO-dye composite films with smooth and dense surfaces. And the spectral results reveal that dye molecules stack in well-organized aggregates on the surface of GO sheets corresponding to monomers in bulk solution. The present research work about GO-dye composite films by LB method may provide new clues to prepare organized composite films and demonstrate potential applications in many fields.
引用
收藏
页码:793 / 800
页数:8
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