Unraveling photocatalytic electron transfer mechanism in polyoxometalate-encapsulated metal-organic frameworks for high-efficient CO2 reduction reaction

Dual-ligand-functionalized dodeca-nuclear lanthanide–tungsten-cluster incorporated selenotungstates and fluorescence detection of dipicolinic acid (an anthrax biomarker)

“…[3][4][5] Polyoxometalates (POMs) are a class of inorganic metal-oxo clusters and have exhibited their rich architectural diversity and fascinating properties in optics, catalysis, magnetism, biomedicine, nanotechnology, etc. [6][7][8][9][10][11] As the most widely researched branch of POMs, polyoxotungstates (POTs), particularly inorganic-organic hybrid POT materials (IOHPMs), have attracted ongoing research interest. 12,13 In this respect, the persistent pursuit of IOHPMs was driven by the strong combining capacity of organic ligands towards metal centers or POTs, where organic ligands can provide abundant binding sites and modes for their coordination assembly by subtly acclimating themselves to the whole geometrical requirements.…”

Enhanced Photoinduced Baeyer–Villiger Oxidation of Ketones by Introducing Trinuclear Ruthenium Clusters into Polyoxometalate-Based Metal–Organic Frameworks

“…Polyoxometalates (POMs) are inorganic polynuclear anionic metal–oxygen clusters incubating d-block transition metals (Mo, W, V, Nb, Ta) with the highest oxidation states. − POMs have semiconductor-like properties and exhibit efficient activity in photocatalytic organic synthesis, hydrogen production, CO 2 reduction, and so forth. , Particularly, heteropolytungstates have been broadly utilized as efficient hydrogen atom transfer (HAT) photocatalysts for photocatalytic conversion reactions of various organic compounds, such as C–H arylation, conjugate addition, and fluorination reactions. − Where, 12-silicotungstic acid (SiW 12 ) is the most classical structure among heteropolytungstates, which is stable and easy to crystallize, making it an excellent candidate for HAT transfer photocatalysts. However, SiW 12 absorbs only UV light and has high solubility in the reaction system, which makes it difficult to be recycled and reused, limiting its practical applications significantly. − Recent studies show that the coordination of POMs with organic ligands and metal/metal cluster nodes for the construction of heterogeneous POM-based metal–organic frameworks (POMOFs) not only preserves the functionality of individual components but also contributes to the synergistic effect between them. ,, Additionally, ruthenium-based chromophores have been widely reported as photosensitizers utilized in photocatalytic organic transformations. , Accordingly, we speculate that the assembly of SiW 12 and ruthenium-based chromophores by bridging ligands and metals into heterogeneous POMOFs will not only utilize the HAT function of SiW 12 and solve the challenge of its nonreusability but also make full use of the strong visible light capture ability of ruthenium-based chromophores for improving the solar energy utilization and enhancing the photocatalytic activity.…”

“…33−35 Recent studies show that the coordination of POMs with organic ligands and metal/metal cluster nodes for the construction of heterogeneous POM-based metal−organic frameworks (POMOFs) not only preserves the functionality of individual components but also contributes to the synergistic effect between them. 22,36,37 Additionally, ruthenium-based chromophores have been widely reported as photosensitizers utilized in photocatalytic organic transformations. 23,38 Accordingly, we speculate that the assembly of SiW 39 were added to water (8.0 mL) under stirring.…”

Layered Co–O Cluster Applied to Photocatalytic CO2 Reduction

“…The rapid development of the global economy demands abundant energy consumption . Most of that energy is derived from burning fossil fuels. , The behavior of uncontrolled use of fossil fuels has created serious energy challenges due to their nonrenewable and limited reserves and also posed environmental threats owing to the release of excess CO 2 . − Therefore, there is an urgent call for prompt action to the catalytic conversion of CO 2 to various clean energies or valuable chemicals. − Among various strategies, photocatalytic CO 2 RR has attracted much attention from researchers. − It has lived up to its reputation as a ponderable and sustainable method of converting CO 2 for the reason that it can availably make use of solar power to reduce CO 2 to value-added chemicals. − Nevertheless, the reduction process is considerably demanding because of the tardy reaction kinetics of CO 2 . As a consequence, developing photocatalysts that are economical, high-performance, and environmentally friendly is the top priority.…”