Electrostatic Confinement‐Induced Excited Charge Transfer in Ionic Covalent Organic Framework Promoting CO2 Reduction DOI
Mingfei Yu, Wei Chen, Qingqing Lin

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 4, 2024

Abstract We demonstrate an electrostatic confinement‐induced charge transfer pathway in a supramolecular photocatalyst comprising of ionic covalent organic framework (COF) and cationic metal complexes. The dynamic interactions not only attract cations around the COF to accept photogenerated electrons, but also allow for retention homogeneous catalytic characters complexes, making subtle balance. Accordingly, confinement effect facilitates forward electron from photoexcited Co complex, realizing remarkable photocatalytic CO 2 reduction performance. Its efficiency is far superior counterparts with Van‐der‐Waals or hydrogen bonding interactions. This work presents insight enhancing systems, provides effective approach construction highly efficient photocatalysts.

Language: Английский

Functionalized covalent organic frameworks for catalytic conversion of biomass-derived xylan to furfural DOI

Yuan Yuan Ju,

Kai Zhang,

Peng Gan

et al.

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 294, P. 139541 - 139541

Published: Jan. 6, 2025

Language: Английский

Citations

3
Fluorescent β-cyclodextrin-based hydrogel for enhanced adsorption and fluorescence detection of malachite green DOI
Yuting Zhang,

Xinmiao Qi,

Qiang Ma

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132065 - 132065

Published: Feb. 1, 2025

Language: Английский

Citations

3
Constructing fluorescent nitrogen-containing covalent organic frameworks for visual monitoring and efficient adsorbing iodine with increasing adsorption capacity by post-synthesis ionic modification DOI
Shuaijie Zhang,

Douchao Mei,

Ke Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161825 - 161825

Published: March 1, 2025

Language: Английский

Citations

2
Electrostatic Confinement‐Induced Excited Charge Transfer in Ionic Covalent Organic Framework Promoting CO2 Reduction DOI

Mingfei Yu,

Wei Chen, Qingqing Lin

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 4, 2024

Abstract We demonstrate an electrostatic confinement‐induced charge transfer pathway in a supramolecular photocatalyst comprising of ionic covalent organic framework (COF) and cationic metal complexes. The dynamic interactions not only attract cations around the COF to accept photogenerated electrons, but also allow for retention homogeneous catalytic characters complexes, making subtle balance. Accordingly, confinement effect facilitates forward electron from photoexcited Co complex, realizing remarkable photocatalytic CO 2 reduction performance. Its efficiency is far superior counterparts with Van‐der‐Waals or hydrogen bonding interactions. This work presents insight enhancing systems, provides effective approach construction highly efficient photocatalysts.

Language: Английский

Citations

6
Efficient Capture of Pb (II) Ions From Aqueous Solutions Using Metal Organic Frameworks@Covalent Organic Framework Composites With Abundant Carboxyl Groups DOI Open Access
Shaopeng Zhang, Jie Ding, Dayong Tian

et al.

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(2)

Published: Jan. 12, 2025

ABSTRACT The development of efficient adsorbents with high selectivity is essential for mitigating environmental pollution. This study introduces a novel adsorbent comprising metal–organic framework (i.e., MIL‐101(Fe)‐NH 2 ) and covalent organic (COF) enriched carboxyl groups, which designated /COF‐COOH. synthesized through Schiff base reaction followed by carboxymethylation subsequently employed Pb (II) adsorption. structure /COF‐COOH confirmed using various characterization techniques, including Fourier transform infrared spectroscopy, scanning electron microscopy, X‐ray diffraction, thermogravimetric analysis, Brunauer, Emmett, Teller surface area analysis. adsorption capacity (q e value estimated batch experiments . effects several factors, pH, dosage, contact time, concentration, solution ionic strength, temperature, on the process are systematically assessed. achieves highest 184 mg/g at pH 6. kinetics, isotherms, thermodynamics indicate that occur spontaneous monolayer chemical process. Moreover, displays remarkable anti‐interference capability, its q decreases only 10% after 10 cycles. Based results, mechanism determined to be primarily electrostatic chelation interactions between O‐ N‐containing functional groups. Thus, this highly recyclable exhibits considerable potential removing from aquatic ecosystems.

Language: Английский

Citations

0
Imine-bonded covalent organic frameworks with abundant carboxyl groups and triazine rings for the efficient and selective removal of ciprofloxacin in actual water environments DOI
Shuaijie Zhang,

Douchao Mei,

Ke Li

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136304 - 136304

Published: Jan. 1, 2025

Language: Английский

Citations

0
Efficient removal of uranium (VI) from aqueous solution by functionalized plate-like covalent organic frameworks DOI

Jiahu Zhang,

Dechun Liu,

Jiangyong Hu

et al.

Journal of Radioanalytical and Nuclear Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Language: Английский

Citations

0
Anion-Exchange Strategy for Ru/RuO2-Embedded N/S-Co-Doped Porous Carbon Composites for Electrochemical Nitrogen Fixation DOI Open Access

Shahzeb Ali Samad,

Xuanzi Ye,

Zhiya Han

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(4), P. 543 - 543

Published: Feb. 19, 2025

Ionic porous polymers have been widely utilized efficiently to anchor various metal atoms for the preparation of metal-embedded heteroatom-doped carbon composites as active materials electrocatalytic applications. However, rational design heteroatom and elements in HPC-based remains a significant challenge, due tendency aggregation nanoparticles during pyrolysis. In this study, nitrogen (N)- sulfur (S)-enriched ionic covalent organic framework (iCOF) incorporating viologen thieno[3,4-b] thiophene (TbT) was constructed via Zincke-type polycondensation. The synthesized iCOF possesses crystalline structure with pore size 3.05 nm, low optical band gap 1.88 eV, superior conductivity 10-2.672 S cm-1 at 333 K, confirming conjugated nature our novel iCOF. By applying precursor, ruthenium ruthenium(IV) oxide (Ru/RuO2) nanoparticle-embedded N/S-co-doped composite (NSPC-Ru) prepared by using two-step sequence anion-exchange pyrolysis processes. electrochemical reduction reaction (eNRR) application, NSPC-Ru achieves an impressive NH3 yield rate 32.0 μg h-1 mg-1 Faradaic efficiency 13.2% -0.34 V vs. RHE. Thus, innovative approach proposes new route iCOF-derived enhanced NRR performance.

Language: Английский

Citations

0
Optimized cleansing techniques: Engineered Covalent-organic frameworks (COF) adsorbents for mycotoxin removal from food products DOI
Brij Mohan,

Virender Virender,

Rakesh Kumar Gupta

et al.

Trends in Food Science & Technology, Journal Year: 2025, Volume and Issue: unknown, P. 104936 - 104936

Published: Feb. 1, 2025

Language: Английский

Citations

0
Electrostatic Confinement‐Induced Excited Charge Transfer in Ionic Covalent Organic Framework Promoting CO2 Reduction DOI
Mingfei Yu, Wei Chen, Qingqing Lin

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 4, 2024

Abstract We demonstrate an electrostatic confinement‐induced charge transfer pathway in a supramolecular photocatalyst comprising of ionic covalent organic framework (COF) and cationic metal complexes. The dynamic interactions not only attract cations around the COF to accept photogenerated electrons, but also allow for retention homogeneous catalytic characters complexes, making subtle balance. Accordingly, confinement effect facilitates forward electron from photoexcited Co complex, realizing remarkable photocatalytic CO 2 reduction performance. Its efficiency is far superior counterparts with Van‐der‐Waals or hydrogen bonding interactions. This work presents insight enhancing systems, provides effective approach construction highly efficient photocatalysts.

Language: Английский

Citations

1