▎ 摘　　要

The dispersion of graphene in aqueous media is typically challenging. Currently, a significant amount of research is focused on the dispersion of non-polar hydrophobic graphene in environmentally friendly and non-toxic solvents. The present study combines the noncovalent bonding and probe sonication assisted methods, which ceate shear stresses and cavitation in the solvent, assisting sodium silicate moieties to penetrate within the consecutive graphene layers. Owing to the intercalation of sodium silicate, an increase in the stability of the dispersion is observed by decreasing the probability of pi-pi stacking. Additionally, sodium silicate promotes the induction of water molecule intercalation into the graphene sheets, which further results in a decrease in the van der Waals interaction between the graphene layers. A uniform and stable dispersion is obtained using the sodium silicate(10)water(10) solution. Significantly improvement in the dispersion of graphene is achieved by utilizing economical and green solvents. Then the optimized dispersion assures stability of more than 60 days and treated to screen printing on different flat materials such as aluminum, glass, wood, soft paper. The hall effect measurements of G(2)SS(10)W(10) typically exhibits low resistance (2.713 x 10(-2)) and high conductivity (36.85 S cm(-1)). Theoretical studies were conducted for further validation of dispersion and stability using molecular dynamics simulation. (C) 2021 Elsevier Ltd. All rights reserved.