Preparation and Characterization of Ternary Composite Composed by Chitosan, Porphyrin Derivative and Single-Walled Carbon Nanotubes (SWCNTs)

Abstract:

The functionalization of single-walled carbon nanotubes (SWCNTs) by noncovalent approach turned to be an effect strategy. Porphyrin and its derivatives are ideal materials for the decoration of SWCNTs. In this work, 5-(4-carboxypheny1)-10,15,20-triphenylporphyrin (H2CPTPP) was synthesized and covalently combined to the chitosan. The prepared chitosan/H2CPTPP composite was further conjugated with the oxidized SWCNTs to form chitosan/H2CPTPP/SWCNTs ternary composite. The results indicated that the carboxyl group of H2CPTPP was successfully introduced into the chitosan, which was confirmed by Fourier Transform infrared (FT/IR) spectroscopy, Raman shift and X-ray photoelectron spectroscopy (XPS). The solution of chitosan/ H2CPTPP/SWCNTs composite displays fluorescence quenching effect compared with that of chitosan/H2CPTPP composite at 615 nm and 654 nm upon excitation at 425nm.

• Periodical: Advanced Materials Research (Volumes 535-537)
• Pages: 1591-1596
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.535-537.1591
• Online since: June 2012
• Authors: Cheng Hong Huang, Chang Jun Hou, Juan Li, Hui Qi, Sheng Fang Chen, Huan Bao Fa, Dan Qun Huo
• Keywords: Chitosan, Porphyrin, Single-Walled Carbon Nanotube (SWCNT)

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