Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(8), P. 2212 - 2245
Published: Jan. 1, 2024
This review highlights the recent advances in photocatalytic applications of porphyrin-based MOFs aqueous environments for solar fuel generation and water remediation.
Language: Английский
Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(9)
Published: Dec. 28, 2022
Covalent organic frameworks (COFs) are highly desirable for achieving high-efficiency overall photosynthesis of hydrogen peroxide (H2 O2 ) via molecular design. However, precise construction COFs toward photosynthetic H2 remains a great challenge. Herein, we report the crystalline s-heptazine-based (HEP-TAPT-COF and HEP-TAPB-COF) with separated redox centers efficient production from pure water. The spatially orderly active sites in HEP-COFs can efficiently promote charge separation enhance photocatalytic production. Compared HEP-TAPB-COF, HEP-TAPT-COF exhibits higher efficiency integrating dual reduction s-heptazine triazine moieties. Accordingly, bearing remarkable solar-to-chemical energy 0.65 % high apparent quantum 15.35 at 420 nm, surpassing previously reported COF-based photocatalysts.
Language: Английский
Citations
165
Catalysts, Journal Year: 2023, Volume and Issue: 13(7), P. 1102 - 1102
Published: July 14, 2023
Semiconductor-based photocatalytic reactions are a practical class of advanced oxidation processes (AOPs) to address energy scarcity and environmental pollution. By utilizing solar as clean, abundant, renewable source, this process offers numerous advantages, including high efficiency, eco-friendliness, low cost. In review, we present several methods construct various photocatalyst systems with excellent visible light absorption efficient charge carrier separation ability through the optimization materials design reaction conditions. Then it introduces fundamentals photocatalysis in both clean generation remediation. other parts, introduce approaches enhance activity by applying different strategies, semiconductor structure modification (e.g., morphology regulation, co-catalysts decoration, doping, defect engineering, surface sensitization, heterojunction construction) tuning optimizing conditions (such concentration, initial contaminant pH, temperature, intensity, charge-carrier scavengers). Then, comparative study on performance recently examined photocatalysts applied production remediation will be discussed. To realize these goals, H2 via water splitting, CO2 reduction value-added products, dye, drug photodegradation lessen toxic chemicals, presented. Subsequently, report dual-functional for simultaneous pollutant reactions. brief discussion about industrial economical applications is described. The follows introducing application artificial intelligence machine learning selection an innovative issues. Finally, summary future research directions toward developing significantly improved efficiency stability provided.
Language: Английский
Citations
114
Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(31)
Published: May 31, 2023
Covalent organic frameworks (COFs), possessing pre-designable structures and tailorable functionalities, are promising candidates for photocatalysis. Nevertheless, the most studied imine-linked COFs (Im-COFs) usually suffer from unsatisfactory stability photocatalytic performance. To meet this challenge, a series of highly stable enaminone-linked (En-COFs) have been synthesized afford much improved visible-light-driven hydrogen production activities, ranging 44 to 1078 times that isoreticular Im-COFs, with only difference being linkages (enaminone vs. imine) in their structures. The enhanced light-harvesting ability, facilitated exciton dissociation chemical account superior activity. Furthermore, quinoline-linked (Qu-COFs) further obtained via post-modification Im-COFs. Compared activities Qu-COFs significantly after modification, but still below those corresponding En-COFs (3-107 times). facile synthesis, excellent activity, high demonstrate platform
Language: Английский
Citations
91
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(12)
Published: Dec. 6, 2023
Abstract As a chemical product with rapidly expanding demand in the field of modern energy and environmental applications, hydrogen peroxide (H 2 O ) has garnered widespread attention. However, existing industrial production H is plagued by high consumption, harmful waste emission, severe safety issues, making it difficult to satisfy environmental/economic concept. Artificial photosynthesis offers viable strategy for green sustainable since uses sunlight as an source initiate reaction oxygen water produce . Among various photocatalysts, covalent organic frameworks (COFs), featuring highly ordered skeletons well‐defined active sites, have emerged promising photocatalysts production. This review presents nascent burgeoning area photocatalytic based on COFs. First, brief overview technology provided, followed detailed introduction principles evaluation generation. Subsequently, latest research progress judicious design COFs expounded, particular emphasis manipulating electronic structures redox sites. Finally, outlook challenges future opportunities proposed, hope stimulating further explorations novel molecular‐designed photosynthesis.
Language: Английский
Citations
85
Advanced Materials, Journal Year: 2023, Volume and Issue: 35(40)
Published: June 26, 2023
Artificial photosynthetic diluted CO2 reduction directly driven by natural sunlight is a challenging, but promising way to realize carbon-resources recycling utilization. Herein, three-in-one photocatalytic system of enrichment, and H2 O oxidation sites designed for reduction. A Zn-Salen-based covalent organic framework (Zn-S-COF) with reductive synthesized; then, ionic liquids (ILs) are loaded into the pores. As result, [Emim]BF4 @Zn-S-COF shows visible-light-driven -to-CO conversion rate 105.88 µmol g-1 h-1 under (15%) atmosphere, even superior than most photocatalysts in high concentrations . Moreover, also reaches 126.51 5 h. Further experiments theoretical calculations reveal that triazine ring Zn-S-COF promotes activity sites, ILs provide an enriched realizing efficient
Language: Английский
Citations
79
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(13), P. 9385 - 9394
Published: March 21, 2024
The shuttling of polysulfides on the cathode and uncontrollable growth lithium dendrites anode have restricted practical application lithium–sulfur (Li–S) batteries. In this study, a metal-coordinated 3D covalent organic framework (COF) with homogeneous distribution nickel–bis(dithiolene) N-rich triazine centers (namely, NiS4-TAPT) was designed synthesized, which can serve as bifunctional hosts for both sulfur cathodes anodes in Li–S abundant Ni N-sites NiS4-TAPT greatly enhance adsorption conversion polysulfides. Meanwhile, presence Ni–bis(dithiolene) enables uniform Li nucleation at anode, thereby suppressing dendrites. This work demonstrated effectiveness integrating catalytic sites to optimize chemical interactions between host materials redox-active intermediates, potentially facilitating rational design COF high-performance secondary
Language: Английский
Citations
79
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(43)
Published: Oct. 12, 2023
Abstract Recent advances in ordered porous materials, including metal‐organic (MOF) and covalent organic frameworks (COF), are set to revolutionize the strategies used for wastewater treatment. This is attributed large surface area, high crystallinity, structural tunability, thermal chemical stability, well‐defined structures of MOF COF. Despite distinctive properties exhibited by single system (either or COF), combination COF MOF, as a hybrid construct, offers remarkable opportunity achieve superior functionality performance. The favorable features COF–MOF hybrids different treatment sectors have opened new venues effective environmental remediation. review presents state‐of‐the‐art design, synthesis, application hybrids. synthesis principles, MOF‐first, COF‐first, post‐synthetic linkage pre‐synthesized COFs MOFs summarized. potential these novel materials evaluated considering contaminant sensing, adsorptive removal, catalytic photodegradation.The conclusion drawn assessing existing hurdles opportunities development COF‐MOF an innovative yet viable approach addressing
Language: Английский
Citations
67
Materials Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 7(16), P. 3298 - 3331
Published: Jan. 1, 2023
This review provides an overview of the recent advances in heterogeneous catalysis using COFs, primarily from 2020 to 2023, covering fundamentals, advantages, current challenges, and future perspectives.
Language: Английский
Citations
64
Small, Journal Year: 2023, Volume and Issue: 19(48)
Published: Aug. 4, 2023
Abstract Covalent organic frameworks (COFs) are one type of porous materials linked by covalent bonds. COFs exhibit many outstanding characteristics such as high porosity, chemical and thermal stability, large specific surface area, efficient electron transfer efficiency, the ability for predesigned structures. These exceptional advantages enable to remarkable performance in photocatalysis. Additionally, activity photocatalysts can be significantly upgraded ion doping formation heterojunctions. This paper summarizes latest research progress on COF‐based applied photocatalytic systems. Initially, typical structures preparation methods analyzed compared. Moreover, essential principles reactions over COFs‐based developments hydrogen production, CO 2 reduction, pollutants elimination, transformation, overall water splitting indicated. At last, outlook challenges photocatalysis discussed. review is intended permit instructive guidance use based future.
Language: Английский
Citations
62
Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(4), P. 113125 - 113125
Published: May 23, 2024
Language: Английский
Citations
56