Abstract
HighlightsUltrathin (< 600 nm) and defect-free leaf-like UiO-66-SO3H membranes were fabricated via in situ smart growth.The sulfonated angstrom-sized ion transport channels in the membranes could accelerate the cation permeation (~ 3× faster than non-functionalized UiO-66 membrane) and achieve a high ion selectivity (Na+/Mg2+ > 140).
Highlights
Metal–organic frameworks (MOFs) are famous potential candidates in membrane-integrated separation processes due to their angstrom-sized pores [1,2,3]
We report a facile in situ smart growth strategy to successfully produce ultrathin (< 600 nm) and leaflike UiO-66-SO3H membranes at the surface of anodic alumina oxide
The inherent sub-nanometer pores in the MOFs matching with the sizes of valuable metal cations [11, 12] are motivational for selective transport and separation of ions [13,14,15]
Summary
Metal–organic frameworks (MOFs) are famous potential candidates in membrane-integrated separation processes due to their angstrom-sized pores [1,2,3]. The inherent sub-nanometer pores in the MOFs matching with the sizes of valuable metal cations [11, 12] are motivational for selective transport and separation of ions [13,14,15]. We have only observed limited use of MOF membranes for selective transport and separation of cations [12,13,14]. The techno‐ logical inventions and chemical functionalization are both highly desirable for fabrication of the defect-free MOFCPMs with fast cation permeation and selectivity. The nuclea‐ tion initiates from the seeds and in situ produces ultrathin leaf-like UiO-66-SO3H membranes (< 600 nm). Step 3: fabrication of the highly decorated UiO-66-SO3H membrane at the AAO surface. Page 3 of 11 51 sulfonated angstrom-sized ion transport channels are in anticipation of accelerating cation permeation and achiev‐ ing cation selectivity
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
