Nanoscale Horizons, Journal Year: 2024, Volume and Issue: 9(12), P. 2198 - 2233
Published: Jan. 1, 2024
Recently, PyCOFs have aroused great interest that pyrene unit could enhance the interlayer π–π interaction and promote separation migration of carriers, significantly improving crystallinity photoelectrical properties.
Language: Английский
Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 9, 2025
Photo/electro-catalytic CO2 reduction into high-value products are promising strategies for addressing both environmental problems and energy crisis. Duo to their advantageous visible light absorption ability, adjustable optic/electronic properties, definite active center, post-modification capability, excellent stability, porphyrin-based covalent organic frameworks (COFs) have emerged as attractive photo/electro-catalysts towards reduction. In this review, the research progress of COFs photo/electro-catalytic is summarized including design principles, catalytic performance, reaction mechanism. addition, review also presents some challenges prospects application in reduction, laying base fundamental efforts.
Language: Английский
Citations
2
Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown
Published: March 18, 2025
Near-infrared (NIR) light-driven photoreactions are advantageous over visible ones because NIR photons have lower energy and fewer side reactions, deeper penetration in reaction media, high abundance the solar spectrum. However, currently available covalent organic frameworks (COFs) absorb UV-vis region catalyze under blue or white light irradiation. Herein, we report a linker-to-linker charge transfer process viologen-linked porphyrin COF (Vio-COF), leading to novel type of hyperporphyrin effect extending absorption into with an edge at 998 nm. Under irradiation, photoinduced separation Vio-COF generates viologen radical that efficiently reduces oxygen form superoxide radicals for catalytic oxidative coupling reactions. The proximity units within framework significantly enhances performance Vio-COF, outperforming its homogeneous counterparts aerobic amidation amine was readily recycled used six
Language: Английский
Citations
2
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(47), P. 32161 - 32205
Published: Nov. 18, 2024
Covalent organic frameworks (COFs) are created by the condensation of molecular building blocks and nodes to form two-dimensional (2D) or three-dimensional (3D) crystalline frameworks. The diversity with different properties functionalities large number possible framework topologies open a vast space well-defined porous architectures. Besides more classical applications materials such as absorption, separation, catalytic conversions, interest in optoelectronic COFs has recently increased considerably. electronic both their linkage chemistry can be controlled tune photon absorption emission, create excitons charge carriers, use these carriers photocatalysis, luminescence, chemical sensing, photovoltaics. In this Perspective, we will discuss relationship between structural features properties, starting connectivity, layer stacking 2D COFs, control over defects morphology including thin film synthesis, exploring theoretical modeling structural, electronic, dynamic discussing recent intriguing focus on photocatalysis photoelectrochemistry. We conclude some remarks about present challenges future prospects powerful architectural paradigm.
Language: Английский
Citations
11
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 13, 2025
The synthesis of covalent organic frameworks (COFs) with excellent luminescent properties and their effective application in the field bionic sensing remain a formidable challenge. Herein, series COFs different numbers hydroxyl groups are successfully synthesized, number on benzene-1,3,5-tricarbaldehyde (BTA) linker influences final COFs. COF (HHBTA-OH) prepared hydrazine hydrate (HH) BTA containing one group as ligands exhibits best fluorescent performance. MA@HHBTA-OH is formed by reaction HHBTA-OH meldrum's acid (MA) has its extremely high hydrophilicity, dispersibility, strong red fluorescence, which can imitate human gustatory system to detect bitter substances. was combined agarose (AG) construct MA@HHBTA-OH@AG film for assessing food freshness. In addition, an acoustic MA@HHBTA-OH@MF sensor fabricated integrating melamine foam (MF) through hydrogen bond. functions like eardrum recognizes sound pressure waves mechanical summary, biomimetic sensors based were constructed, monitor auditory, gustatory, olfactory information achieve multimode perception sound, substances,
Language: Английский
Citations
1
ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 811 - 819
Published: Jan. 31, 2025
Language: Английский
Citations
1
Journal of Material Science and Technology, Journal Year: 2025, Volume and Issue: unknown
Published: March 1, 2025
Language: Английский
Citations
1
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: March 12, 2025
In this study, we construct a quantum well effect-based two-dimensional Z-scheme superlattice heteronanostructure photocatalyst constructed from hydrogen-bonded porphyrin organic frameworks (HOFs) and carbon nitride. Porphyrin HOFs extend spectral absorption, while their π-conjugation electron density variations significantly enhance charge separation exhibit favorable alignment with the energy levels of nitride, thereby enabling efficient transfer. Carboxylic acid channels in further promote decomposition water molecules, boosting hydrogen production. Experimental results indicate an improvement carrier efficiency 6.97 to 50.31%, resulting 935-fold increase evolution rate 187.2 mmol/g/h. Such represents highest performance among currently reported porphyrin-based carbon-based photocatalysts. This work highlights potential well-based heterostructure design optimizing photocarrier dynamics, providing promising strategy for advancing photocatalytic evolution.
Language: Английский
Citations
1
Science China Materials, Journal Year: 2024, Volume and Issue: 68(1), P. 21 - 38
Published: Nov. 8, 2024
Abstract The conversion of carbon dioxide (CO 2 ) to the reduced chemical compounds offers substantial environmental benefits through minimizing emission greenhouse gas and fostering sustainable practices. Recently, unique properties metal-organic frameworks (MOFs) make them attractive candidates for electrocatalytic CO reduction reaction RR), providing many opportunities develop efficient, selective, environmentally processes mitigating emissions utilizing as a valuable raw material synthesis fuels chemicals. Here, recent advances in MOFs efficient catalysts RR are summarized. detailed characteristics, mechanisms, practical approaches improving efficiency, selectivity, durability under realistic conditions also clarified. Furthermore, outlooks on prospects MOF-based electrocatalysts provided.
Language: Английский
Citations
8
Scientia Sinica Chimica, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 1, 2025
Language: Английский
Citations
0
Published: Jan. 1, 2025
Language: Английский
Citations
0