N-doping of β-ketoenamine based covalent organic frameworks (COFs) for enhancing photocatalytic oxidation activity DOI

Jun Fan,

Qibiao Wang, Shuyan Wang

et al.

Journal of Solid State Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 125017 - 125017

Published: Sept. 1, 2024

Language: Английский

Europium(III) Functionalized Covalent Organic Framework as Sensitive and Selective Fluorescent Switch for Detection of Uranium DOI

Xiang‐Lan Mao,

Yuan‐Jun Cai,

Qiu‐Xia Luo

et al.

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(12), P. 5037 - 5045

Published: March 13, 2024

Uranium poses severe health risks due to its radioactivity and chemical toxicity if released into the environment. Therefore, there is an urgent demand develop sensing materials in situ monitoring of uranium with high sensitivity stability. In this work, a fluorescent Eu3+-TFPB-Bpy synthesized by grafting Eu3+ cation onto TFPB-Bpy covalent organic framework (COF) through Schiff base condensation monomers 1,3,5-tris(4-formylphenyl)benzene (TFPB) 5,5′-diamino-2,2′-bipyridine (Bpy). The fluorescence enhanced compared that TFPB-Bpy, which originated from intramolecular rotations building blocks limited bipyridine units coordinated Eu3+. More significantly, highly efficient probe for UO22+ aqueous solution luminescence intensity efficiently amplified complexation turn-on capability was derived resonance energy transfer occurring Eu3+-TFPB-Bpy. developed displayed desirable linear range 5 nM μM good selectivity rapid response time (2 s) mining wastewater. This strategy provides vivid illustration designing lanthanide COF hybrid applications environmental monitoring.

Language: Английский

Citations

13
Development and prospects of covalent organic framework-based ratiometric fluorescent sensors DOI
Yinsheng Liu, Rui Xue, Bing Yan

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216280 - 216280

Published: Oct. 19, 2024

Language: Английский

Citations

10
Synthesis, derivation, and applications of imine-linked covalent organic frameworks: A comprehensive review DOI

P. N. Anjana,

Ajmal Koya Pulikkal

Microporous and Mesoporous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 113516 - 113516

Published: Jan. 1, 2025

Language: Английский

Citations

1
Unveiling the influence of hydrophobicity on inhibiting hydrogen dissociation for enhanced photocatalytic hydrogen evolution of covalent organic frameworks DOI
Xiaoli Fan, Xin Song, Yangpeng Zhang

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 673, P. 836 - 846

Published: June 10, 2024

Language: Английский

Citations

6
Covalent Organic Frameworks Meet Titanium Oxide DOI
Rui Xue, Yinsheng Liu, Xueyan Wu

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: July 19, 2024

In order to expand the applicability of materials and improve their performance, combined use different has increasingly been explored. Among these materials, inorganic–organic hybrid often exhibit properties superior those single materials. Covalent organic frameworks (COFs) are famous crystalline porous constructed by building blocks linked covalent bonds. recent years, combination COFs with other shown interesting in diverse fields, composite TiO2 have investigated more more. These two outstanding through bonding, physical mixing, methods excellent performance various including photocatalysis, electrocatalysis, sensors, separation, energy storage conversion. this Review, current preparation applications COF-TiO2 introduced detail, future development possible problems discussed prospected, which is great significance for related research. It believed that will show greater application value as research progresses.

Language: Английский

Citations

6
Integration of Perylene Diimide into a Covalent Organic Framework for Photocatalytic Oxidation DOI
Xiaobo Shang, Zhenping Li,

Junqiang Jiao

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(46)

Published: July 31, 2024

Abstract Perylene diimides (PDIs) have garnered considerable attention due to their immense potential in photocatalysis. However, manipulating the molecular packing within aggregates and enhancing efficiency of photogenerated carrier recombination remain significant challenges. In this study, we demonstrate incorporation a PDI unit into covalent organic framework (COF), named PDI‐PDA, by linking an ortho‐substituted with p ‐phenylenediamine (PDA) control its intermolecular aggregation. The enables precise modulation electron‐transfer dynamics, leading ten‐fold increase photocatalytic oxidation thioether sulfoxide PDI‐PDA compared counterpart, yields exceeding 90 %. Electron property studies density functional theory calculations show that well‐defined crystal structure, enhances π–π stacking lowers electron transition barrier. Moreover, strong electron‐withdrawing ability promotes spatial separation valency band maximum conduction minimum suppressing rapid electron‐hole pairs improving charge‐separation give high efficiency. This study provides brief but effective way for commonly used PDI‐based dyes integrating them skeleton.

Language: Английский

Citations

6
Rational Conversion of Imine linkages to Amide Linkages in Covalent Organic Frameworks for Photocatalytic Oxidation with Enhanced Photostability DOI
Rui Xue,

Yin-Sheng Liu,

Mingyue Wang

et al.

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

Published: April 25, 2024

Covalent organic frameworks (COFs) and their applications in photocatalysis have been extensively studied, but the instability of imine-linked COFs is an important factor limiting performance. In this work, two were successfully converted to amide-linked through post synthetic modification (PSM). The oxidized presented lower binding energy O

Language: Английский

Citations

4
Substituted triazine-based covalent organic frameworks aerogels for the efficient adsorption and catalytic degradation of tetracycline hydrochloride DOI
Yiwen Cao, You Wang, Shiyuan Wei

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 686, P. 978 - 989

Published: Feb. 7, 2025

Language: Английский

Citations

0
In situ XPS evidence of fully conjugated COF and C3N4 construct S-scheme heterojunction boosting photogenerated carriers transfer and separate for efficiently photocatalytic hydrogen evolution DOI
Zhenkun Liu, Ya Zhang, Youlin Wu

et al.

Journal of Material Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0
In Situ Growth of Highly Dispersed TiO2 in Covalent Organic Frameworks for Photocatalytic H2 Evolution DOI
Rui Xue, Rui Zhang, Yinsheng Liu

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 15, 2025

Titanium dioxide (TiO2) has the disadvantages of being difficult to excite and easily agglomerating in use. The imine-linked covalent organic frameworks (COFs) have shown various excellent properties diverse fields, but drawbacks such as monofunctionality poor light-corrosion resistance are problems that need be improved photocatalytic applications. In this paper, COF (COF-Im) was prepared then transformed into a quinoline-based (COF-Qui) by an aza-Diels–Alder reaction, which successfully light absorption stability COFs. COF-Qui-TiO2 heterojunction photocatalyst situ growth TiO2 pores COF-Qui. highest H2 evolution rate 5373 μmol·h–1·g–1, it maintained good performance stable structure after 5 cycles. This work provided valuable experience for development novel, efficient photocatalysts.

Language: Английский

Citations

0