Research progress of defect-engineered UiO-66(Zr) MOFs for photocatalytic hydrogen production

Metal–Organic Frameworks as Photocatalysts for Solar-Driven Overall Water Splitting

“…Following the lead of heterogeneous catalysis in which structural defects play an important role, resulting in the generation of Lewis acid sites, defect engineering has also become a common strategy to increase the photoactivity of MOFs . In particular, several studies have optimized the number of defects in MOFs to increase their activity for the visible-light driven HER and, importantly, also for the photocatalytic OWS .…”

“…Following the lead of heterogeneous catalysis in which structural defects play an important role, resulting in the generation of Lewis acid sites, defect engineering has also become a common strategy to increase the photoactivity of MOFs. 355 In particular, several studies have optimized the number of defects in MOFs to increase their activity for the visible-light driven HER 356 and, importantly, also for the photocatalytic OWS. 357 To understand the effect, it was reported by theoretical calculations that the presence of missing linkers as defects in the UiO-66(Zr) solid is an appropriate strategy to favor the occurrence of photoinduced electron transfer from the organic ligand to the metal node.…”

Metal–organic frameworks as a therapeutic strategy for lung diseases

“…For example, a larger specific surface area is conducive to the adsorption of molecules, a larger pore size is conducive to the direct contact of reactant molecules to the active center, and the defect sites even change the optoelectronic properties of MOFs and reduce the absorption of light by their band gap enhancing materials. 185 Jarai et al 186 synthesized UiO-66 NPs with tunable defects to illustrate the viability of UiO-66 NPs as innovative aerosol barriers. Compared to traditional non-porous carriers for pulmonary delivery, the modifiable defects of UiO-66 provide peculiar opportunities to manage pulmonary infiltration, which can be applied in a variety of respiratory diseases.…”

Atomically dispersed Pt inside MOFs for highly efficient photocatalytic hydrogen evolution

“…[21][22][23] Compared with other MOFs, the biggest advantage is that UiO-66 has excellent chemical stability, anti-mechanical stability, thermal stability, and water stability, which can help improve their practical applications. 24,25 Usually, in water splitting, the fact is that the H 2 generation efficiency remains low due to the weak absorption of visible light, and high recombination rate of electron-hole pairs for UiO-66. 26,27 Therefore, functional ligands have been constructed for enhancing the photoadsorption of MOFs, [28][29][30][31] with the common approach being to package pre-synthesized functional ligands, such as noble metals (e.g.…”

“…21–23 Compared with other MOFs, the biggest advantage is that UiO-66 has excellent chemical stability, anti-mechanical stability, thermal stability, and water stability, which can help improve their practical applications. 24,25…”