Efficient fabrication of MoS₂ nanocomposites by water-assisted exfoliation for nonvolatile memories

Abstract

Efficient and green exfoliation of bulk MoS2 into few-layered nanosheets in the semiconducting hexagonal phase (2H-phase) remains a great challenge. Here, we developed a new method, water-assisted exfoliation (WAE), for...

MoS2 nanosheets for the detoxification of Hg2+ in living cells

“…11,23 Compared with bulk MoS 2 powder, the vibration modes of MoS 2 nanosheets are red-shifted due to the weakening of the van der Waals force between the layers, 35 which also suggests the successful exfoliation of bulk MoS 2 into few-layered nanosheets. 36 There is also a rather weak second-order scattering process near 450 cm −1 , attributed to the longitudinal acoustic vibrational mode of the 2H phase monolayer MoS 2 nanosheets. 37…”

“…11,23 Compared with bulk MoS 2 powder, the vibration modes of MoS 2 nanosheets are red-shifted due to the weakening of the van der Waals force between the layers, 35 which also suggests the successful exfoliation of bulk MoS 2 into few-layered nanosheets. 36 There is also a rather weak second-order scattering process near 450 cm À1 , attributed to the longitudinal acoustic vibrational mode of the 2H phase monolayer MoS 2 nanosheets. 37 The survey XPS spectrum (Fig.…”

Electrochemical studies of biofunctionalized MoS2 matrix for highly stable immobilization of antibodies and detection of lung cancer protein biomarker

“…The peaks observed in CS at 1416 cm −1 , 1303 cm −1 , and 1089 cm −1 correspond to the CH 2 bending, –NH stretching and C–O stretch of CS, respectively. 25 The peak observed at 1561 cm −1 in CS is due to the bending vibration of –NH. 23 The peaks that correspond to –NH stretching (1303 cm −1 ) and –NH bending (1561 cm −1 ) are missing in CS/MoS 2 .…”

Ionic Liquid Crystals Confining Ultrathin MoS2 Nanosheets: A High-Concentration and Stable Aqueous Dispersion

“…Water as a green solvent has attracted the greatest interest in recent years because it is cost-effective and eco-friendly . However, because of its strongly hydrophobic and high surface energy bulk, it is difficult to disperse MoS 2 and exfoliate it in water . Therefore, some stabilizers (such as surfactants and polymers) of an amphiphilic nature are used to reduce the surface tension of water (72 mJ/m 2 ) to then achieve a uniform dispersion and a reliable exfoliation of MoS 2 . , Zhao successfully prepared MoS 2 in water by β-cyclodextrin-assisted exfoliation .…”