Heterogeneous Catalysts Catalyzed Photo‐Atom Transfer Radical Polymerization (Photo‐ATRP) DOI
Guanying Chen,

Xiaoyu Guo,

Bo Hu

et al.

Macromolecular Chemistry and Physics, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 28, 2024

Abstract Photo‐ATRP technique has garnered significant attention due to its multitude of advantages, including ability be conducted under mild reaction conditions, user‐friendly nature, and exceptional efficiency in polymerization. The heterogeneous photocatalysts not only exhibit quantum efficiency, but also possess a versatile bandgap that can finely adjusted accommodate wide range absorption wavelengths within the visible light spectrum, thereby emphasizing their potential for efficient recovery reuse. utilization variety photo‐ATRP presents notable benefits numerous applications, such as lack any remaining substances, simplicity usage, This review focuses on recent progress utilizing photocatalysts, encompassing metal semiconductor nanoparticles, dot, upconversion metal–organic frameworks, covalent–organic conjugated microporous polymers, hypercrosslinked polymer, carbon‐based materials.

Language: Английский

Two-dimensional porphyrin-based covalent organic frameworks for heterogeneous photocatalysis: Influence of pore size on photocatalytic performance DOI

Houchao Shan,

Ziyi Zhang, Yunfei Jiang

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132102 - 132102

Published: Feb. 1, 2025

Language: Английский

Citations

1
Intrareticular Exciton Effects Regulate Photocatalytic Activity in Donor–Acceptor Olefin‐Linked Covalent Organic Frameworks DOI
Jie Zhang,

Wenwen Zhou,

Jianfeng Zhao

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 3, 2024

Abstract Olefin‐linked covalent organic frameworks (OL‐COFs) show great promise for visible‐light‐driven photocatalysis. Manipulating atomic‐level donor–acceptor interactions in OL‐COFs is key to understanding their exciton effects this system. Here, three are presented with orthorhombic lattice structures, synthesized via Knoevenagel polycondensation reaction of terephthalaldehyde and tetratopic monomers featuring phenyl, benzo[c][1,2,5]oxadiazole, benzo[c][1,2,5]thiadiazole moieties. These feature tunable interactions, making them ideal studying olefin‐linked systems. Comprehensive analyses, including temperature‐dependent photoluminescence spectra, ultrafast spectroscopy, theoretical calculations, reveal that stronger lead reduced binding energy ( E b ), accelerated dissociation, longer‐lived photogenerated charges, thereby enhancing photocatalytic performance. Notably, The TMO‐BDA COF, the lowest , demonstrates superior activity one‐pot sequential transformation excellent catalytic performance gram‐scale reactions, highlighting its potential practical applications. This work provides valuable insights into regulating effect at molecular level OL‐COFs, offering pathways enhance efficiency.

Language: Английский

Citations

5
Two-Dimensional Porphyrin-Based Covalent Organic Frameworks for Heterogeneous Photocatalysis: Importance of Pore Structure Engineering DOI

Houchao Shan,

Ziyi Zhang, Yunfei Jiang

et al.

Published: Jan. 1, 2025

Covalent organic frameworks (COFs), with well-designed structure and molecular functionality materials, showed great promising as metal-free catalysts for heterogeneous photocatalysis. Nevertheless, the influence of pore COFs on photocatalytic performances is always neglected in ever reports. Herein, by rational designation topology diagrams, two-dimensional porphyrin-based (ETBA-por COF ETBC-por COF) different sizes were synthesized first time. Both as-synthesized exhibited outstanding crystallinity, rich micropores high surface area. Moreover, also have similar photoelectrochemical efficaciously production superoxide radical anions under visible irradiation. To test effect performances, two typical characteristic reactions organics transformation, including selective aerobic oxidation sulfides oxidative amine coupling evaluated. Interestingly, although both good recyclability stability, ETBA-por smaller size has higher conversion (94 %) sulfoxides selectivity (>99 %), while things reversed imines (99 % substrate 96 yield that larger size). Mechanisms activity revealed combing experiments simulation, which infers suitable molecules accesses critical to ensure photocatalysis performances. This study confirmed importance efficient transformation organics.

Language: Английский

Citations

0
Near-Flat D–A-Typed Triphenylamine-COF toward Efficient Charge Migration and Enhanced Oxygen Activation for Boosting Photoredox Reactions DOI

Ren Ma,

Yujing Zhang, Feiyang Yu

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 3046 - 3060

Published: Feb. 5, 2025

Language: Английский

Citations

0
Recent Advances in Covalent Organic Frameworks as Photocatalysts for Organic Transformations DOI

Yongjian Du,

Jinwen Jiao, Ziyi Zhang

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116253 - 116253

Published: March 1, 2025

Language: Английский

Citations

0
Regulating the Combinations of Donor and Acceptor Units via DFT Calculations for Photocatalysts with Efficient Electron–Hole Separation and Transfer Dynamics DOI

Lin-Fu Xie,

Ling Niu,

Tingting Xie

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Donor-acceptor (D-A)-type conjugated microporous polymers (CMPs) are considered promising photocatalytic materials due to their easily tunable structures and optical properties. However, the rational combination of D A units design D-A-type CMPs with efficient electron-hole separation transfer dynamics remains an ongoing challenge. Herein, we employed Density Functional Theory (DFT) calculations evaluate 16 potential D-A pair combinations respective dynamics. These consisted M-salens (M = Zn, Cu, Co, Ni) as bromine-containing monomers four alkyne-based monomers: 2,4,6-tris(4-ethynylphenyl)-1,3,5-triazine (TEPT), 4,4″-diethyl-5'-(4-ethynylphenyl)-1, 1':3',1″-terphenyl (TEPB), tris(4-ethynylphenyl) amine (TEPA), 3,7-diethyl-10-(4-ethynylphenyl)-10H-phenothiazine (TEPP). Eight were obtained via DFT calculation, ranking follows: Zn-salen-TEPA > Zn-salen-TEPP Zn-salen-TEPT Cu-salen-TEPP Cu-salen-TEPA Cu-salen-TEPT Ni-salen-TEPT Co-salen-TEPT. Based on these results, three pairs exhibiting highest selected for synthesis corresponding subsequent photoelectric characterization. Experimental enhancements aligned closely predictions. Notably, aerobic oxidative amidation diverse aldehydes amines catalyzed by under blue LED irradiation achieved a yield up 97%, which surpassed performance most reported works. This work offers novel perspectives endowed highly activity.

Language: Английский

Citations

0
Heterogeneous Catalysts Catalyzed Photo‐Atom Transfer Radical Polymerization (Photo‐ATRP) DOI
Guanying Chen,

Xiaoyu Guo,

Bo Hu

et al.

Macromolecular Chemistry and Physics, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 28, 2024

Abstract Photo‐ATRP technique has garnered significant attention due to its multitude of advantages, including ability be conducted under mild reaction conditions, user‐friendly nature, and exceptional efficiency in polymerization. The heterogeneous photocatalysts not only exhibit quantum efficiency, but also possess a versatile bandgap that can finely adjusted accommodate wide range absorption wavelengths within the visible light spectrum, thereby emphasizing their potential for efficient recovery reuse. utilization variety photo‐ATRP presents notable benefits numerous applications, such as lack any remaining substances, simplicity usage, This review focuses on recent progress utilizing photocatalysts, encompassing metal semiconductor nanoparticles, dot, upconversion metal–organic frameworks, covalent–organic conjugated microporous polymers, hypercrosslinked polymer, carbon‐based materials.

Language: Английский

Citations

2