CrystEngComm, Journal Year: 2024, Volume and Issue: 26(19), P. 2459 - 2462
Published: Jan. 1, 2024
Using a new azole ligand, special porous metal azolate framework with two distinct and nonintersecting 1D/2D pore channels was constructed.
Language: Английский
Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(34), P. 18931 - 18938
Published: Aug. 17, 2023
Interfacial charge transfer on the surface of heterogeneous photocatalysts dictates efficiency reactive oxygen species (ROS) generation and therefore aerobic oxidation reactions. Reticular chemistry in metal-organic frameworks (MOFs) allows for rational design donor-acceptor pairs to optimize interfacial charge-transfer kinetics. Herein, we report a series isostructural fcu-topology Ni8-MOFs (termed JNU-212, JNU-213, JNU-214, JNU-215) with linearly bridged bipyrazoles as organic linkers. These crystalline can maintain their structural integrity 7 M NaOH at 100 °C 24 h. Experimental studies reveal that linker engineering by tuning electron-accepting capacity pyrazole-bridging units renders these significantly improved separation under visible-light irradiation. Among them, one containing benzoselenadiazole unit (JNU-214) exhibits best photocatalytic performance benzylamines conversion rate 99% Recycling experiments were carried out confirm stability reusability JNU-214 robust catalyst. Significantly, systematic modulation bridging donor-acceptor-donor MOFs provides new pathway develop viable noble-metal-free
Language: Английский
Citations
76
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(5), P. 3396 - 3404
Published: Jan. 24, 2024
Covalent organic frameworks (COFs), with the features of flexible structure regulation and easy introduction functional groups, have aroused broad interest in field photocatalysis. However, due to low light absorption intensity, photoelectron conversion efficiency, lack suitable active sites, it remains a great challenge achieve efficient photocatalytic aerobic oxidation reactions. Herein, based on reticular chemistry, we rationally designed series three-motif molecular junction type COFs, which formed dual photosensitizer coupled redox junctions containing multifunctional COF photocatalysts. Significantly, strong adsorption ability units integrated reduction features, PY-BT exhibited highest activity for oxidation. Especially, achieved benzylamine efficiency 99.9% 2.5 h, is much higher than that two-motif only one or unit lacking COFs. The mechanism selective was studied through comprehensive experiments density theory calculations. results showed photoinduced electron transfer occurred from PY then triphenylamine BT. Furthermore, thermodynamics energy lower others, confirmed synergistic effect This work provided new strategy design COFs also represented insight into catalytic
Language: Английский
Citations
60
Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(18), P. 9378 - 9418
Published: Jan. 1, 2024
Organic transformation by light-driven catalysis, especially, photocatalysis and photothermal denoted as photo(thermal) is an efficient, green, economical route to produce value-added compounds. In recent years, owing their diverse structure types, tunable pore sizes, abundant active sites, metal-organic framework (MOF)-based catalysis has attracted broad interest in organic transformations. this review, we provide a comprehensive systematic overview of MOF-based for First, the general mechanisms, unique advantages, strategies improve performance MOFs are discussed. Then, outstanding examples transformations over introduced according reaction type. addition, several representative advanced characterization techniques used revealing charge kinetics intermediates presented. Finally, prospects challenges field proposed. This review aims inspire rational design development materials with improved catalysis.
Language: Английский
Citations
48
Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 505, P. 215690 - 215690
Published: Feb. 1, 2024
Language: Английский
Citations
21
EnergyChem, Journal Year: 2023, Volume and Issue: 6(1), P. 100115 - 100115
Published: Nov. 22, 2023
Language: Английский
Citations
36
Science China Chemistry, Journal Year: 2023, Volume and Issue: 66(12), P. 3383 - 3397
Published: Oct. 25, 2023
Language: Английский
Citations
29
Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(3), P. 1000 - 1007
Published: Jan. 8, 2024
Language: Английский
Citations
11
CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2024, Volume and Issue: 58, P. 226 - 236
Published: March 1, 2024
Language: Английский
Citations
11
ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(7), P. 3909 - 3917
Published: March 27, 2024
Donor–acceptor covalent organic framework (COF) materials have proven to be an optimal choice for heterogeneous photocatalysis due their capacity effective charge separation and harvesting of visible light. The poor chemical photostability imine-linked D–A COFs restrict potential broader applications. So, researchers are focused on developing with enhanced photocatalytic activity. In this study, we also emphasize the pivotal role molecular engineering overcome these challenges. Herein, a carbazole-based highly crystalline CzDA-TAPT COF was developed. Not only does incorporation alkyl group-substituted carbazole provide excellent donor ability, but butyl groups in pore skeleton guide attachment successive layers different AB stackings, significantly amplifying efficiency by providing more active sites reaction. Compared previously reported photoactive benzothiadiazole-based COFs, innovative material exhibits superior heightened photostability, resulting notable advancement aerobic oxidation aryl boronic acids phenols.
Language: Английский
Citations
9
Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 346, P. 127462 - 127462
Published: April 10, 2024
Language: Английский
Citations
9