Nano-/Micro-confined Water in Graphene Hydrogel as Superadsorbents for Water Purification.

ABSTRACT: Confined water has been proven to be of great importance due to its pervasiveness and contribution to life and many fields of scientific research. However, the control and characterization of confined water are a challenge. Herein, a confined space is constructed by flexibly changing the pH of a graphene oxide dispersion under the self-assembly process of a graphene hydrogel (GH), and the confined space is adjusted with variation from 10.04 to 3.52 nm. Confined water content in GH increases when the pore diameter of the confined space decreases; the corresponding adsorption capacity increases from 243.04 to 442.91 mg g^-1. Moreover, attenuated total reflectance Fourier transform infrared spectroscopy and Raman spectroscopy are utilized to analyze the hydrogen bonding structure qu

SUBMITTER: Sun Y 

PROVIDER: S-EPMC7770964 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature