Amphiphilic graphene oxide stabilisation of hexagonal BN and MoS₂ sheets

Abstract

A simple and scalable method has been developed for directly forming water-dispersible van der Waals solids involving mixing aqueous solution of graphene oxide (GO) with hexagonal boron nitride (BN) or molybdenum disulphide (MoS2) in N-methylpyrrolidone. The GO acts as an amphiphile in stabilising the colloidal solutions of the heterolaminar material in water.

Highly Compressive Boron Nitride Nanotube Aerogels Reinforced with Reduced Graphene Oxide

“…Strong D (∼1358 cm –1 ) and G (∼1590 cm –1 ) bands are evident for BNNTs/GO. The characteristic peak for BNNTs cannot be detected due to overlap with the strong D band for GO nanosheets . The interactions between BNNTs and GO are believed to play a positive part in the stable dispersion of BNNTs.…”

“…In this work, taking full advantages of the ability of graphene oxide (GO) nanosheets to stably disperse nanomaterials in water and their self-assembly in the followed reduction process, − we propose an effective strategy to prepare 3D BNNTs/rGO aerogels. The two-dimensional (2D) GO nanosheets act as both the reinforced material and the surfactant for stabilizing and assembling the 1D BNNTs based on affinity interactions between GO and BNNTs.…”

Design of graphene oxide/gelatin electrospun nanocomposite fibers for tissue engineering applications

“…The hydrophobic interaction between gelatin and GO and the amorphous structure of gelatin also favors the GO dispersion in gelatin matrix. The GO is amphoteric in which hydrophilic property comes from the polar groups (carboxylates, hydroxyl groups, and epoxide) and hydrophobic property from the GO backbone (unoxidized aromatic groups) 45,46 . The gelatin exhibits hydrophilic property but also consists of hydrophobic residues from amino acids (leucine, isoleucine and valine) 47 .…”

Few-Layer Hydroxyl-Functionalized Boron Nitride Nanosheets for Nanoscale Thermal Management

“…In the surfactant-aqueous solution system, the aqueous solution is environmentally friendly, easy to handle, and low-cost. In addition, surfactants can enhance the exfoliation effect and stabilize the dispersion of BNNS in aqueous solution. − Among them, as an anionic surfactant, sodium dodecyl sulfate (SDS) was selected in this experiment because it has the advantages of excellent performance, wide application, low price, and minimal damage to human skin.…”