PbS nanotubes were successfully synthesized in bicontinuous microemulsion system containing cyclohexane, aqueous solution, n-pentanol and surfactant OP (polyethylene glycol p-octylphenyl ether). The morphology of PbS nanotubes was confirmed by the transmission electron microscopy. The crystallinity and structural features of PbS nanotubes were characterized by powder X-ray diffraction. The effect of key parameters, such as the molar ratio of water to surfactant and the reactant concentration, on the resulting product has also been investigated. The formation mechanism of PbS nanotubes and nanowires synthesized in bicontinuous microemulsion system has been discussed.
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