fig2

Figure 2. (A) SEM images of ZnS/PCFs; (B) SEM images of FeS-ZnS/PCFs-20%; (C) N₂ adsorption-desorption isotherms with the BJH pore-size distribution of ZnS/PCFs and FeS-ZnS/PCFs-20%; (D) High-magnification TEM image of FeS-ZnS/PCFs-20%; (E) Raman spectra of ZnS/PCFs and FeS-ZnS/PCFs-20%; (F) HRTEM image of FeS-ZnS/PCFs-20%; (G) Selected area electron diffraction (SAED) pattern of FeS-ZnS/PCFs-20%; (H) TEM-EDS mapping image of the FeS-ZnS/PCFs-20%.