Preparation of Carbon Fiber/MoS_2 Core-shell Structure by Surface Modification and Precipitation Process in Aqueous Solution

摘要

A core-shell structure material, carbon fiber/MoS_2 was prepared by a surface modification precipitation process in aqueous solution. A nucleation model for this structure was proposed. Coating was obtained from 10-4M ammonium molybdate. The energy band gap of MoS_2 calculated from the absorption spectra was about 1.97eV. CFs/MoS_2 core-shell structure has strong absorption in the wavelength range from 400 to 1000nm, which is well fitted to visible light of the solar spectrum. The result of thermal analysis indicates that the composite is stable below 403°C.