The controlled growth CuS nanosheets on the surface of functionalization carbon fibers with SiO₂

Abstract

SiO₂-CNFs composites were prepared by electrospinning and calcination with change of the dosage of SiO₂ nanoparticles into electrospinning precursor solution. CuS nanosheets were controllably grown on the surface of SiO₂-CNFs through hydrothermal method, which was characterized by SEM, FTIR, TEM, XRD, and XPS techniques. The results showed that multi-hydroxyl on the surface of SiO₂ provided active sites to attract Cu²⁺. Hence, SiO₂ modified CNFs had the function of directional anchoring CuS nanosheets. The photocatalytic degradation of tetracycline using CuS-SiO₂-CNFs was further investigated. Compared with CuS-CNFs and CuS-2%SiO₂-CNFs samples, the CuS-1%SiO₂-CNFs had the optimal photocatalytic activity, which was attributed to that CuS nanosheets were homogeneously dispersed on the surface of 1%SiO₂-CNFs.

Keywords:

• SiO₂-CNFs
• directional anchoring
• controlled grow
• photocatalytic degradation

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work is supported by the link project of the National Natural Science Foundation of China (51772158).