Newly Emerging Metal–Organic Frameworks (MOF), MXenes and Zeolite …
237
Fig. 8 Intercalation of MXene into GO to fabricated lamellar GO/MXene membrane for solvent
permeation and molecular separations. Figures are reproduced with permissions from (Ref. 135)
MX-SA spheres was so strong that only >8 M HCl could desorb the adsorbed Hg
2+ ,
which was similar as that of MOFs [139]. It should be noted that with MX-SA
treatment, Hg
2+ concentration could be reduced to be as low as 1.8 ppb.
6 Research Gaps
Bringing 2D nanosheets-based water purification technology from the lab-scale
experiments and simulations to the industrial and/or field-level applications have
remained as one of the major challenges. For MOFs, MXene and zeolite nanosheets,
although their separation performance has been successfully evidenced in lab scale,
even now it is still difficult to realize their practical usage. The first challenge is
the sophisticated synthesis procedures which always involve the usage of abundant
organic solvents. Besides, the large-scale synthesis of nanosheets is also challenging,
which hinders their widespread applications in adsorption. In addition, when being
used in desalination, the interlayer spacing distance is hard to maintain under the
237
Fig. 8 Intercalation of MXene into GO to fabricated lamellar GO/MXene membrane for solvent
permeation and molecular separations. Figures are reproduced with permissions from (Ref. 135)
MX-SA spheres was so strong that only >8 M HCl could desorb the adsorbed Hg
2+ ,
which was similar as that of MOFs [139]. It should be noted that with MX-SA
treatment, Hg
2+ concentration could be reduced to be as low as 1.8 ppb.
6 Research Gaps
Bringing 2D nanosheets-based water purification technology from the lab-scale
experiments and simulations to the industrial and/or field-level applications have
remained as one of the major challenges. For MOFs, MXene and zeolite nanosheets,
although their separation performance has been successfully evidenced in lab scale,
even now it is still difficult to realize their practical usage. The first challenge is
the sophisticated synthesis procedures which always involve the usage of abundant
organic solvents. Besides, the large-scale synthesis of nanosheets is also challenging,
which hinders their widespread applications in adsorption. In addition, when being
used in desalination, the interlayer spacing distance is hard to maintain under the