Donor‐Acceptor Truxene‐Based Porous Polymers: Synthesis, Optoelectronic Characterization and Defense‐Related Applications

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(29)

Published: Feb. 8, 2024

Abstract Four donor‐acceptor (D‐A) polymers are synthesized by combining two different electron donors (truxene and its more rich triaza analogue, triindole) with an electron‐deficient monomer (benzothiadiazole) through positions (2,7,13 or 3,8,13) their optoelectronic properties studied theoretical experimental methods. One of the exhibits remarkable sensing capabilities for explosive nitraoaromatics while another demonstrated efficient photocatalytic activity in aerobic sulfoxidation sulfur mustard simulant 2‐chloro‐ethyl ethyl sulfide (MGS) sulfoxidation. These results highlight potential applications defense‐related areas. Moreover, structure‐performance relationships observed among four have enabled us to deepen understanding mechanisms underlying performance these aforementioned applications, thereby providing valuable insights further improve properties.

Language: Английский

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Advances in photothermal water evaporation: synthesis, mechanisms, and coupled techniques

Energy Materials, Journal Year: 2025, Volume and Issue: 5(2)

Published: Jan. 11, 2025

Recent advancements in light-driven interfacial water evaporation have underscored the potential of photothermal materials for producing clean from various sources, including seawater, rivers, lakes, and wastewater. Despite these advancements, challenges environmental management energy conversion persist. The development multifunctional composites has addressed by integrating active species into devices, thereby enhancing their performance applicability. This review provides a thorough examination recent progress purification. It covers advances material synthesis, optimization evaporator configurations through techniques, application treatment production. discussion includes innovative heat strategies designed to improve system efficiency. concludes identifying current suggesting future research directions advance field efficient purification

Language: Английский

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Enhanced Photocatalytic Production of Hydrogen Peroxide by Covalent Triazine Frameworks with Stepwise Electron Transfer

ACS Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 17654 - 17663

Published: Nov. 15, 2024

The photosynthesis of hydrogen peroxide (H2O2) from pure water and oxygen using metal-free photocatalysts offers a renewable approach to convert solar energy storable chemical energy. However, the efficiency H2O2 is often hindered by rapid recombination photogenerated charge carriers. Herein, we present an elegantly designed covalent triazine framework (CTF) photocatalyst, denoted as Ace-asy-CTF, with stepwise electron transfer pathway for highly efficient H2O2. Notably, Ace-asy-CTF possesses localized excited-state distribution that created weakly conjugated acetenyl units in asymmetric frameworks, revealed transient spectroscopies further supported theoretical calculations. Meanwhile, introduced also serve active sites reduction reaction (ORR). simultaneously enhanced two-step 2e– ORR result excellent yield 2594 μmol g–1 h–1, directly produced without requiring any sacrificial reagents. This work paves way development next-generation catalysts, providing feasible benchmark stable

Language: Английский

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Synthetic Strategies to Extended Aromatic Covalent Organic Frameworks

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(45)

Published: May 21, 2024

π-Conjugated materials are highly attractive owing to their unique optical and electronic properties. Covalent organic frameworks (COFs) offer a great opportunity for precise arrangement of building units in π-conjugated crystalline matrix tuning the properties through choice functionalities or post-synthetic modification. With this review, we aim at summarizing both most representative as well emerging strategies synthesis COFs. We give examples direct using large, π-extended blocks. COFs featuring fully conjugated linkages such vinylene, pyrazine, azole discussed. Then, modification methods that result extension COF π-system reviewed. Throughout, mechanistic insights presented when available. In context utilization film devices, conduct concise survey prominent layer deposition techniques reported aptness fused aromatic systems.

Language: Английский

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Unveiling the potential of a covalent triazine framework based on [1]benzothieno[3,2-b][1]benzothiophene (DPhBTBT-CTF) as a metal-free heterogeneous photocatalyst

Green Chemistry, Journal Year: 2023, Volume and Issue: 26(4), P. 1975 - 1983

Published: Dec. 21, 2023

A novel covalent triazine framework (DPhBTBT-CTF) prepared by microwave cyclotrimerization of BTBT units was proved as very versatile photocatalyst for different reactions: oxidations, bromination, Diels–Alder cycloaddition and hydroxylations.

Language: Английский

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Efficient integration of covalent triazine frameworks (CTFs) for augmented photocatalytic efficacy: A review of synthesis, strategies, and applications

Heliyon, Journal Year: 2024, Volume and Issue: 10(11), P. e32202 - e32202

Published: June 1, 2024

Heterogeneous photocatalysis emerges as an exceptionally appealing technological avenue for the direct capture, conversion, and storage of renewable solar energy, facilitating generation sustainable ecologically benign fuels a spectrum other pertinent applications. nanocomposites, incorporating Covalent Triazine Frameworks (CTFs), exhibit wide-ranging light absorption, well-suited electronic band structures, rapid charge carrier mobility, ample resource availability, commendable chemical robustness, straightforward synthetic routes. These attributes collectively position them highly promising photocatalysts with applicability in diverse fields, including but not limited to production photocatalytic decomposition environmental contaminants. As field through hybridization CTFs undergoes expansion, there is pressing substantive need systematic retrospective analysis forward-looking evaluation elucidate pathways enhancing performance. This comprehensive review commences by directing attention methodologies creation composite materials. And then it delves into thorough exploration strategies geared towards augmenting performance, encompassing introduction electron donor–acceptor (D-A) units, heteroatom doping, defect Engineering, architecture Heterojunction optimization morphology. Following this, systematically elucidates applications primarily centered around efficient hydrogen, reduction carbon dioxide photocatalysis, degradation organic pollutants. Ultimately, discourse turns unresolved challenges prospects further advancement, offering valuable guidance potent harnessing high-efficiency processes.

Language: Английский

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Recent Advances in Heterogenization of Photocatalysts on Polymer Supports and Applications in Organic Synthesis

ChemPhotoChem, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract The photocatalysis is a powerful tool in organic synthesis to generate reactive intermediates and create challenging chemical bonds. reactivity on such process mainly controlled by photocatalyst (PCat) which designed ensure both selectivity efficiency. In the pursuit of more economical environmentally friendly approaches, heterogenization photocatalysts has become increasingly essential, it still challenging. Among various insoluble supports studied, polymers offer several appealing characteristics, as stability, ease synthesis, porosity, recyclability. This review aims summarize recent progress polymer including polymerization PCat, post‐grafting PCat 3D‐printing. For selected heterogeneous photocatalyst, examples transformations evidence photocatalytic efficiency will be discussed.

Language: Английский

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3D‐Printed Eosin Y‐Based Heterogeneous Photocatalyst for Organic Reactions

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(25)

Published: Feb. 27, 2024

Heterogenization of Eosin Y by 3D-printing and its application in photocatalysis are reported. The approach allows a fine tuning the photocatalyst morphology rapid preparation. Photocatalytic activity was evaluated through model organic reactions involving oxidation, reduction, photosensitization pathways. efficiency, recyclability stability 3D printed EY is remarkable paving way to new generation heterogeneous photocatalysts with perfect control their shape adaptable any photoreactors.

Language: Английский

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Selective hydrogenation of phenylacetylene over TiO₂ supported Ni₂P nanoparticles under visible light irradiation

Catalysis Science & Technology, Journal Year: 2023, Volume and Issue: 13(22), P. 6519 - 6526

Published: Jan. 1, 2023

The introduction of P weakened the adsorption styrene and enhanced light absorption ability Ni 2 P/TiO , which improved photocatalytic activity selectivity in selective hydrogenation phenylacetylene.

Language: Английский

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Triflate Salts as Alternative Non-Chlorinated Oxidants for the Oxidative Chemical Vapor Deposition and Electronic Engineering of Conjugated Polymers

Macromolecules, Journal Year: 2024, Volume and Issue: 57(20), P. 9627 - 9639

Published: Oct. 2, 2024

Oxidative chemical vapor deposition (oCVD) stands as an attractive approach for the synthesis, engineering, and integration of conjugated polymers advanced electronic optoelectronic applications. In oCVD, oxidant significantly influences conformational properties resulting polymer thin films. this work, triflate salts iron(III) copper(II) (Fe(OTf)

Language: Английский

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