Fig. 2: Assembly process of MOF-GO nano-sandwiches.
From: Sandwiching of MOF nanoparticles between graphene oxide nanosheets among ice grains
a, b CLSM images of the distribution of nanoparticles before and after the assembly. Inset, scale bar, 2 μm. MOF, red; GO, green; MOF-GO, orange; ice, gray. c Fixed concentrations of ZIF-8 nanoparticles were assembled with GO at different concentrations, and the inset showed fixed concentrations of GO were assembled with ZIF-8 at different concentrations. Each yield was averaged from 50 independent experiments. Error bars are the standard errors of the mean. d The relation between molar concentration of initial MOF and the yield of the nano-sandwiches per unit area on the ice surface. Each yield was averaged from 50 independent experiments. Error bars are the standard errors of the mean. e Free energy profile for the transfer of GO with the oxidation degree of 24% from the bulk water to the (100) crystal plane of ZIF-8. Characteristic snapshots of the system from MD trajectory are also shown. f The effect of oxidation degree of GO in equilibrium distance between the GO and the MOF surface and the dissociation energy. g Schematic diagram of the three-step assembly process of the MOF-GO nano-sandwiches. Source data are provided as a Source Data file.
