Abstract
A green approach has been developed to synthesize water soluble multi-walled carbonnanotubes (MWNTs). Ag nanoparticles have been loaded on the as-synthesized MWNTsvia the in situ solution method. The strategy is based on the introduction of hydroxyl andcarboxyl groups through a mild modification of MWNTs via polycondensation ofcitric acid and D-sorbitol, improving the water solubility of MWNTs, giving riseto preferred sites of Ag nucleation, and providing mild in situ reducing agents.The modification of MWNTs and loading of Ag nanoparticles on MWNTs weredemonstrated by Fourier transform infrared spectroscopy, thermogravimetricanalysis, transmission electron microscopy, and scanning electron microscopy.
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