International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 94, P. 1106 - 1113
Published: Nov. 16, 2024
Language: Английский
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 1, 2024
Abstract Photocatalytic water splitting for hydrogen production represents a crucial approach obtaining green energy through artificial solar utilization, offering sustainable method generation that helps mitigate shortages and protect the environment. Among numerous photocatalytic materials, covalent organic frameworks (COFs) have garnered significant attention intensive study from researchers due to their distinctive benefits, such as porosity, pre‐design capability, tunability at atomic level. Significant advancements are made in development of enhancement performance, comprehension mechanisms. In this review, recent COF‐based spotlighted, both half‐reactions overall reactions, with particular emphasis on rational design COF structures regulate materials' optical electrical properties, well fundamental processes photocatalysis. Drawing current research field, existing challenges, potential opportunities also discussed future development.
Language: Английский
Citations
11
Small, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 26, 2025
Abstract Covalent organic frameworks (COFs), known for the precise tunability of molecular structures, hold significant promise photocatalytic hydrogen peroxide (H 2 O ) production. Herein, by systematically altering quinoline (QN) linkages in triazine (TA)‐based COFs via multi‐component reactions, six R‐QN‐TA‐COFs are synthesized with identical skeletons but different substituents. The fine‐tuning optoelectronic properties and local microenvironment is allowed, thereby optimizing charge separation improving interactions dissolved oxygen. Consequently, MeO‐QN‐TA‐COF customized to achieve an impressive rate H production up 7384 µmol g⁻ 1 h⁻ under air atmosphere water without any sacrificial agents, surpassing most reported COF photocatalysts. Its high stability demonstrated through five consecutive recycling experiments characterization recovered COF. reaction mechanism further investigated using a suite quenching experiments, situ spectroscopic analysis, theoretical calculations. enhanced over 2e⁻ oxygen reduction oxidation pathways. Overall, crucial role linkage modulation design solar‐driven effective
Language: Английский
Citations
1
Small, Journal Year: 2025, Volume and Issue: unknown
Published: March 3, 2025
Abstract “Molecular science” has long been regarded as the golden rule to guide design of organic materials’ performances in past many years, but some interesting phenomena conventional aggregation‐caused fluorescence quenching and new aggregation‐induced emission reflect that properties would be changed from “molecule” “aggregate”. Therefore, “molecular theory faces certain limitations regulating performance materials at aggregation. In this work, it is discovered photosensitizer's contain reactive oxygen species, which could affected by changing molecular atoms aggregation form. The introduction selenium redshift improve species (ROS) efficiency. addition atomic effect, ROS efficiency photosensitizers after coating a polymeric shell, is, production type II singlet ( 1 O 2 ) suppressed, while I superoxide anion (O −• improved. This work discovers are relevant effect discussing deeply influence mechanism, important research significance for modulating precisely promoting development photodynamic therapy.
Language: Английский
Citations
1
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155542 - 155542
Published: Sept. 6, 2024
Language: Английский
Citations
8
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 27, 2024
Abstract Photocatalysis leverages solar energy to overcome the thermodynamic barrier, enabling efficient chemical reactions under mild conditions. It can greatly reduce reliance on traditional sources and has attracted significant research interest. Reticular materials, including metal‐organic frameworks (MOFs) covalent organic (COFs), represent a class of crystalline materials constructed from molecular building blocks linked by coordination bonds, respectively. function as heterogeneous catalysts, combining well‐defined structures high tailorability akin homogeneous catalysts. In this review, regulation light absorption, charge separation, surface in photocatalytic process through precise molecular‐level design based features reticular is elaborated. Notably, for MOFsmicroenvironment modulation around catalytic sites affects performance delved, with emphasis their unique dynamic flexible microenvironments. For COFs, inherent excitonic effects due fully nature discussed highlight strategies regulate charge‐ and/or energy‐transfer‐mediated photocatalysis. Finally, current challenges future directions field, aiming provide comprehensive understanding how be optimized enhanced photocatalysis discussed.
Language: Английский
Citations
8
Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 358, P. 124370 - 124370
Published: Dec. 1, 2024
Language: Английский
Citations
5
Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1003, P. 175636 - 175636
Published: July 20, 2024
Language: Английский
Citations
5
Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 357, P. 130068 - 130068
Published: Oct. 11, 2024
Language: Английский
Citations
5
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157514 - 157514
Published: Nov. 1, 2024
Language: Английский
Citations
4
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160481 - 160481
Published: Feb. 1, 2025
Language: Английский
Citations
0