238
G.-R. Xu
Fig. 9 Schematic illustration for the synthesis of MGMX, SEM images and the adsorption ability
for Hg. Figures are reproduced with permissions from (Ref. 137)
harsh ionic environment. The removal efficiency toward single valent ions, such as
Na
+ is usually very low, seriously limiting their desalination performance. The harsh
surroundings also reduce the stability of the nanosheets.
7 Conclusions and Perspectives
(a) More advanced fabrication strategies
Despite the promising research advances, challenges still exist in the synthesis
of 2D nanosheets. For example, the fabrication of MOF nanosheet using topdown method is limited by the low yielding. MOF nanosheets obtained by
exfoliation method face the problem of stabilization and that obtained via
interfacial synthesis are encountered by the low crystallinity. It is urgent to find
more effective and facile method for the synthesis of 2D MOF nanosheets. In
addition, how to improve the yield should be further investigated. Furthermore,
the green synthesis procedures using environmentally friendly solvents should
also be taken into considerations. For example, in the fabrication of MXene
via exfoliation method, abundant fluorine containing solvents are used, which
might bring severe environmental problems.
G.-R. Xu
Fig. 9 Schematic illustration for the synthesis of MGMX, SEM images and the adsorption ability
for Hg. Figures are reproduced with permissions from (Ref. 137)
harsh ionic environment. The removal efficiency toward single valent ions, such as
Na
+ is usually very low, seriously limiting their desalination performance. The harsh
surroundings also reduce the stability of the nanosheets.
7 Conclusions and Perspectives
(a) More advanced fabrication strategies
Despite the promising research advances, challenges still exist in the synthesis
of 2D nanosheets. For example, the fabrication of MOF nanosheet using topdown method is limited by the low yielding. MOF nanosheets obtained by
exfoliation method face the problem of stabilization and that obtained via
interfacial synthesis are encountered by the low crystallinity. It is urgent to find
more effective and facile method for the synthesis of 2D MOF nanosheets. In
addition, how to improve the yield should be further investigated. Furthermore,
the green synthesis procedures using environmentally friendly solvents should
also be taken into considerations. For example, in the fabrication of MXene
via exfoliation method, abundant fluorine containing solvents are used, which
might bring severe environmental problems.