Enhancing photocatalytic H2O2 production of donor−acceptor polymers by modulation of polymerization modes

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер unknown, С. 124856 - 124856

Опубликована: Ноя. 1, 2024

Язык: Английский

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A review of rare earth oxides-based photocatalysts: Design strategies and mechanisms

Journal of Water Process Engineering, Год журнала: 2024, Номер 63, С. 105548 - 105548

Опубликована: Май 30, 2024

Язык: Английский

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Synthesis of flower-like covalent organic frameworks for photocatalytic selective oxidation of sulfide

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2024, Номер 164, С. 105680 - 105680

Опубликована: Июль 27, 2024

Язык: Английский

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Donor–Acceptor Pyrrolo[3,2-b]pyrrolyl- and Dibenzothiophene-Containing Microporous Polymeric Frameworks for Photocatalytic Organic Pollutant Degradation

ACS Applied Polymer Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Язык: Английский

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Donor–Acceptor Type Carbon Nitride Photocatalysts in Photocatalysis: Current Understanding, Applications and Challenges

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 13, 2025

Abstract The exploration of photocatalytic materials with efficient charge separation has always been a prominent area research in photocatalysis. In the preceding years, strategy constructing donor–acceptor (D–A) structured gradually developed systems, becoming new crossroads and attracting extensive interdisciplinary focus. Polymeric carbon nitride (PCN) recognized as primary material for D–A structures due to its attractive exceptional physicochemical stability, electronic band structure, cost‐effectiveness. However, few reports have summarized on type PCN at molecular level. This review focuses level design strategies performance enhancement mechanisms are emphasized from two main aspects: intramolecular intermolecular D–A. addition, concept dual is introduced, proposing direction advancing efficacy photocatalysts. Subsequently, this summarizes application scenarios energy transformation environmental amelioration. Finally, by elaborating difficulties opportunities hot field, can provide inspiration innovative developing resolving issues.

Язык: Английский

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Efficient Photocatalytic Water Purification Through Novel Janus‐Nanomicelles with Long‐Lived Charge Separation Properties

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 17, 2025

Although the design of photocatalysts incorporating donor-acceptor units has garnered significant attention for its potential to enhance efficiency photocatalysis process, primary bottleneck lies in challenge generating long-lived charge separation states during exciton separation. Therefore, a novel Janus-nanomicelles photocatalyst is developed using carbazole (Cz) as donor unit, perylene-3,4,9,10-tetracarboxydiimide (PDI) with long-excited state acceptor unit and polyethylene glycol (PEG) hydrophilic segment through ROMP polymerization. After optimizing ratio, Cz19-PDI18-PEG10 rapidly adsorbs bisphenol A (BPA) within 10 s π-π interaction, hydrogen-bonding hydrophobic interaction between BPA blocks when exposed aqueous humor efficiently photodegrades (50 ppm) 120 min water purification purposes due achieving highest reported so far. Mechanistic studies have shown that this excellent performance can be attributed synergistic interactions highly efficient adsorption capacity photocatalysis. This strategy holds promise an effective candidate purification.

Язык: Английский

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Resorcinol–Formaldehyde/TiO₂ Polymer Composites: Efficient Photocatalysts for Oxidation of Water to Hydrogen Peroxide

ACS Applied Nano Materials, Год журнала: 2025, Номер 8(4), С. 1882 - 1892

Опубликована: Янв. 21, 2025

Given its multifaceted important roles such as aqueous oxidant, chemical platform for environmental remediation, possible liquid fuel, and so on, environmentally friendly approaches to produce hydrogen peroxide (H2O2) are highly desirable. In this context, the photocatalytic generation of from water oxidation has emerged a promising method, phenol–formaldehyde-based functional resins have been established an excellent developing photocatalysts oxidation. The present work reports development resorcinol–formaldehyde (RF) TiO2 (RF/TiO2) composites efficient heterogeneous production H2O2 through synthesis RF/TiO2 was accomplished following simple high-temperature hydrothermal it characterized study microstructures optical properties. role optimum amount in improving activity resin by with varied amounts TiO2. As experimentally established, prepared 1.1–1.6% (w/w) feed respect resorcinol at temperature 200 °C under conditions were found be most ones study. Out these composites, RF/TiO2-1.2% RF/TiO2-1.3% resulted ∼500 ∼530 μmol per gram catalyst, respectively, upon 5 h continuous photoirradiation experimental reaction ∼30–35 °C. It observed that rate can enhanced increasing temperature.

Язык: Английский

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Carborane in Polymers—Existent Stipulations and Technological Trademarks

Polymer-Plastics Technology and Materials, Год журнала: 2025, Номер unknown, С. 1 - 27

Опубликована: Фев. 10, 2025

Язык: Английский

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Bifunctional Built‐In Electric Field Across the Interface of Single Molecule and 2D Matrix Supramolecular Assembly for Highly Efficient and Selective Photocatalytic CO₂ Reduction

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 24, 2025

Abstract The sluggish interfacial charge transfer and constrained intrinsic catalytic activity in photocatalytic systems are major obstacles to the efficiency selectivity of CO 2 photoreduction (CO PR). Herein, a novel organic–inorganic supramolecular assembly heterojunction (NiAl‐ZnTCPP) comprising single molecules 2D matrix is presented, featuring high‐quality contact achieved through electrostatic interactions hydrogen bonding. This comprehensive investigations unveil formation an effective built‐in electric field (BEF) directed from NiAl‐LDH toward ZnTCPP, which significantly boosts PR. NiAl‐ZnTCPP achieves impressive yield 1568.6 µmol g −1 h , exceeding yields ZnTCPP by 25 5.6 times, respectively, while maintaining remarkable 98% extremely low selectivity. Utilizing advanced experimental technologies, including diverse operando characterizations theoretical simulations, bifunctionality BEF elucidated, not only accelerates photogenerated carriers photosensitizer NiAl‐ZnTCPP, but also enhances modulating electronic structure nickel active sites (specifically lowering energy barrier for * COOH conversion improving transport capability). work provides new insights into application molecule/2D junctions generate fields that enhance performance.

Язык: Английский

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A tribute to Professor Dr Kai A. I. Zhang: pioneering advances in metal‐free polymeric photocatalysis

Polymer International, Год журнала: 2025, Номер unknown

Опубликована: Фев. 28, 2025

Abstract Polymeric photocatalysts have emerged as promising alternatives to traditional metal‐based catalysts due their tunable properties, low cost and environmental friendliness. This review highlights the significant contributions of Professor Dr Kai A. I. Zhang in advancing field polymeric photocatalysis. By leveraging structural versatility polymers, Zhang's work has developed innovative strategies enhance light absorption, charge separation catalytic activity. The delves into fundamental principles underlying photocatalysis, including exciton generation, carrier dynamics surface reactions. It further explores design considerations for optimizing polymer structures achieve efficient photocatalytic performance. Key advancements synthesis characterization are discussed, along with applications various chemical transformations. pioneering opened up new avenues development sustainable systems, driving transition towards a greener future. © 2025 Society Chemical Industry.

Язык: Английский

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