Fig. 1
Characterization of MoS2, GO, and MoS2/GO NSs. TEM images of (a) GO, b MoS2, and c, d MoS2/GO NSs. Scale bar = 0.5 μm or 5 nm (e) SEM images of MoS2/GO/PVA, MoS2/PVA, GO/PVA and PVA hydrogels, ×1000 (from left to right). Scale bar = 20 μm. f XRD pattern of standard MoS2 and synthetic MoS2/GO sample. g Raman spectra of GO and MoS2/GO NSs. (h) FTIR spectra of GO and MoS2/GO NSs. i Elastic modulus, j conductivity, and k swelling ratio of PVA, GO/PVA, MoS2/PVA, and MoS2/GO/PVA hydrogels