Preparation and Characterization of CdSe-Decorated Multiwalled Carbon Nanotube Composites

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概要

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• Composites of carboxylated multiwalled carbon nanotubes (c-MWNTs) and CdSe nanoparticles were prepared by the electrostatic interaction. CdSe nanoparticles were stabilized by 2-(dimethylamino)ethanethiol hydrochloride to develop positive charges on their surfaces in aqueous solution. The structural characteristics of these composites were analyzed using X-ray diffraction (XRD), and transmission electron microscopy (TEM). Ultraviolet/visible (UV/vis) spectra of c-MWNT--CdSe composites showed the characteristic bands at ${\sim}250$ nm. These results indicate that the energy state of c-MWNTs is significantly modified, which was caused by the homogeneous distribution of CdSe nanoparticles in c-MWNTs, and the bond formation between c-MWNTs and CdSe nanoparticles. The photoluminescence (PL) of CdSe nanoparticles in the composites was characterized in comparison with that of CdSe nanoparticles. PL of CdSe in c-MWNT--CdSe composites was collected at ${\sim}568$ nm in solution, but disappeared in powder state.

• 2011-01-25

著者

• Rabbani Mohammad

  Department Of Agricultural Science Gifu University

• Park Jong

  Department Mathematics Pusan National University

• Rabbani Mohammad

  Department of Materials and Components Engineering, Electronic Ceramics Center, Dong-Eui University, Busan 614-714, Korea

• Bae Jong-Seong

  Nano-Surface Technology Research Team, Korea Basic Science Institute, Busan 609-735, Korea

• Kim Dukeun

  Department of Materials and Components Engineering, Electronic Ceramics Center, Dong-Eui University, Busan 614-714, Korea

• Ko Chang

  Greenhouse Gas Research Center, Korea Institute of Energy Research, Daejeon 305-343, Korea

• Nam Dae-Geun

  Dongnam Technology Application Division, Korea Institute of Industrial Technology, Busan 618-230, Korea

• Yeum Jeong

  Department of Natural Fiber Science, Kyungpook National University, Daegu 702-701, Korea

• Oh Weontae

  Department of Materials and Components Engineering, Electronic Ceramics Center, Dong-Eui University, Busan 614-714, Korea

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