Diameter- and Shape-Controlled ZnSSi Nanocables and Si Nanotubes for SERS and Photocatalytic Applications

الملخص EN

ZnS/Si nanocables were synthesized via a simple two-step thermal evaporation method.

The shape and diameter of the ZnS/Si nanocables can be controlled by adjusting the morphologies of the ZnS nanostructures (nanowire or nanoribbon) obtained in the first step and the deposition time of the Si shell in the second step, respectively.

Furthermore, we obtained polycrystalline Si nanotubes with different shapes and diameters by etching away the inner ZnS core.

The as-prepared Si nanotubes were employed as SERS-active substrates, which exhibited a high sensitivity for the detection of R6G.

The Si nanotubes also showed effective photocatalytic activity on the decomposition of R6G under the irradiation of visible light.