Figure 1

(A) Preparation flow diagram and thermal stability of HCF and morphology characterization; (B) FTIR spectra of the samples; (C) SEM images of HST (× 5000) and HCF (× 500).

(A) Preparation flow diagram and thermal stability of HCF and morphology characterization; (B) FTIR spectra of the samples; (C) SEM images of HST (× 5000) and HCF (× 500).