Water stable MOFs as emerging class of porous materials for potential environmental applications

MOFs meet membrane: application in water treatment and separation

“…According to the current studies, water-stable MOFs (such as MIL-100, MIL-101, ZIF-8 and UiO-66) are mainly metal carboxylate frameworks that consist of high-valence metal ions, metal azole frameworks that contain nitrogen donor ligands, and MOFs functionalized with hydrophobic pore surfaces or with clogged metal ions. [22][23][24][25] Composite membranes prepared from water-stable MOFs have a relatively high separation performance. Considering that some MOFs with poor water stability still exist, some post-synthesis modifications such as ligand modification, 26 metal and ligand exchange 27 have also been designed to improve the hydrothermal stability of MOFs.…”

Sunlight-Driven Photocatalysis for a Set of 3D Metal–Porphyrin Frameworks Based on a Planar Tetracarboxylic Ligand and Lanthanide Ions

“…To prevent breakdown and explore the dye degradation under visible light conditions, we performed the same experiment with Sm-TCPP using a UV filter during the irradiation process (Figure B). The results showed that the dye degradation remains highly efficient while superficial breakdown is minimized …”

“…The results showed that the dye degradation remains highly efficient while superficial breakdown is minimized. 47 In order to compare the photocatalytic performance, we analyzed the degradation efficiency of the different Ln-TCPP materials, expressed as (C 0 −C)/C 0 , where C 0 is the initial concentration of the MB dye, and C is the concentration at a time t, which can be seen in Figure 4. Sm-TCPP showed the highest efficiency, with 55% after 40 min of irradiation and more than 74% after 100 min.…”

Powders to Thin Films: Advances in Conjugated Microporous Polymer Chemical Sensors

“…Reports of water-stable Zr, Hf, lanthanide-based MOFs such as UiO-66, and PCN family found to be potential for water-based sensing applications. [37,[39][40][41][42][43][44] On the other hand, the organic linkers in 3D MOFs are often spatially separated by metal ions or metal-oxo clusters, consequently, the electronic communication between organic chromophores may be reduced and hinders long-range exciton migration which is critical for ultrasensitive detection of analytes such as explosives. Previous reports have proven the capabilities of long-range exciton migration in MOFs, for example, BOP MOF containing Zn-paddle wheel separated porphyrin and boron dipyrromethene (bodipy) exhibited strut-tostrut exciton energy transfer.…”