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Self-assembly of Water Soluble Multi-wall Carbon Nanotube/Copper Phthalocyanine Dye Multilayer Films
Yu Haihu*,Yu Dingshan,Zhou Lingde,Wang Haixia,Jiang Desheng
Author NameAffiliationE-mail
Yu Haihu* Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology Wuhan 430070 hhyu@mail.whut.edu.cn  
Yu Dingshan Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology Wuhan 430070  
Zhou Lingde Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology Wuhan 430070  
Wang Haixia Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology Wuhan 430070  
Jiang Desheng Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology Wuhan 430070  
Abstract:
Water soluble multi-wall carbon nanotubes (MWCNTs) were prepared via chemical oxidation. Under ultrasonication,the chemically treated MWCNTs can be dispersed in water to form colloids. The MWCNTs were characterized by FT-IR spectra. The FT-IR spectra reveal the presence of carboxylic groups on the nanotubes. The functional groups can improve the nanotubes-solubility in water. Alcian Blue 8GX (AB), a quaternary ammonium dye of the copper phthalocyanine group, was dissolved in water and used to form electrostaticcally self-assembled multilayer films. The MWCNT/AB composite films were characterized by UV-vis absorption spectra as well as AFM and fluorescence spectrum. The experimental results show that the MWCNT/AB composite films can be produced easily. Compared to those of the AB aqueous solutions, composite films exhibit pronounced differences in the absorption and fluorescence spectra, which suggests that AB molecules aggregated in the composite film, and that a charge transfer might exist between AB molecules and the MWCNTs.
Key words:  Multi-wall carbon nanotube, Colloid, Electrostatic self-assembly, Thin film
FundProject:
水溶性多壁碳纳米管/铜酞菁染料
余海湖*,余丁山,周灵德,王海霞,姜德生
摘要:
采用化学氧化法制备了可溶性多壁碳纳米管,借助超声作用把可溶性多壁碳纳米管分散在水中形成水溶胶,采用自组装技术制备了可溶性多壁碳纳米管/铜酞菁染料的复合薄膜,采用原子力显微镜、红外光谱、吸收光谱和荧光光谱对可溶性多壁碳纳米管及其水溶胶、自组装复合薄膜进行了表征. 实验结果显示多壁纳米碳管水溶胶具有较好的组装成膜性能,吸收光谱结果表明染料分子在膜内形成了J聚集体,荧光光谱结果表明复合薄膜的荧光来自于铜酞菁染料,引入多壁碳纳米管对染料分子的荧光发射特性有一定影响.
关键词:  多壁碳纳米管  水溶胶  静电自组装  薄膜
DOI:10.1088/1674-0068/18/6/1039-1042
分类号: