Precise Atomic Control of Adjacent Nitrogen Microenvironment in Covalent Organic Frameworks for Boosting Hydrogen Peroxide Photosynthesis DOI Creative Commons
Wei Zhou,

Wenjiao Wang,

Zhen Zhan

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Abstract The microenvironmental changes on the skeleton of covalent organic frameworks (COFs) have an ineluctable impact photocatalytic performance. However, precise control at atomic level adjacent units and synergistic effect between imine bonds process are frequently overlooked. Herein, we develop various COFs with different nitrogen contents for (-C = N-) applied them to H2O2 photosynthesis. Distinct from traditional reactions, adsorption activation oxygen molecules may predominate over photogenerated charge migration in generation process. Specifically, -C N- atoms can more conducive lower reaction energy barrier, thereby facilitating reduction (ORR, O2 → 1O2 ●O2− H2O2). Notably, under AM 1.5G illumination, efficiency photosynthesis COF-T33 be up 88 mmol g− 1 h− 1, which is highest value reported so far similar conditions. Furthermore, only after 5 hours light irradiation, obtained content reach 0.44 wt%, meeting requirements industrial applications. This work deeply uncovers internal mechanism regulation microenvironment

Language: Английский

Isomeric 2D and 3D covalent organic frameworks induced by inter-modular hydrogen bonds for photocatalytic CO2 reduction DOI
Xiao Wang, Yucheng Jin,

Xu Ding

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160788 - 160788

Published: Feb. 1, 2025

Language: Английский

Citations

1
Isomeric covalent organic frameworks: opportunities and challenges DOI

Qihang Huang,

Qiang Gao, Yuzhu Wang

et al.

Trends in Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0
Coupling Ionic Polarization, Electron Sponge Effect by One‐Pot Hypercrosslinking, Pyridiniumnation of Photosensitizer‐Based Porous Organic Polymers for Enhancing Advanced Oxidation Process DOI

Wuzi Zhao,

Lixuan Kan,

Danfeng Wang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 2025

Abstract Porous organic polymers (POPs) are emerging as up‐and‐coming photocatalysts for energy conversion, and environmental treatment. However, attention to simultaneously improving photoinduced charge separation, transfer, interfacial reaction is markedly lagged. Herein, the strategy of coupling ionic polarization, electron sponge effect enhancing built‐in electric field (BIEF), surface mass transfer process POPs proposed, which can be realized by a one‐pot post‐pyridiniumnation, Friedel‐Craft reaction. This method endows polarization elevating BIEF boosting separation/migration. The pyridiniumnation not only induces allow shallow trap free electrons but also effectively reduces oxygen adsorption energy, pertinent intermediates, thus leading stronger in 2.73‐fold neutral polymer strengthened O 2 activation. Additionally, photothermal performance with up 15 °C increment contributes enhancement photocatalysis. Consequently, iBPyP‐33 exhibits an unprecedentedly efficient photodegradation 100 ppm bisphenol A (BPA) just 20 min, photosynthesis H rate 3070 µmol g −1 h air, 6583 aided sodium ethylenediaminetetraacetic acid. study provides fresh, valuable insights into design high efficiency.

Language: Английский

Citations

0
Single-atom Pd Directly Anchored on Biphenylene: A Promising Bifunctional Electrocatalyst for Overall Water Splitting DOI
Tingting Wang,

Yanan Meng,

Hai-Cai Huang

et al.

Physical Chemistry Chemical Physics, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 19, 2024

Single-atom Pd directly anchored on biphenylene as a promising bifunctional catalyst for overall water splitting.

Language: Английский

Citations

0
Precise Atomic Control of Adjacent Nitrogen Microenvironment in Covalent Organic Frameworks for Boosting Hydrogen Peroxide Photosynthesis DOI Creative Commons
Wei Zhou,

Wenjiao Wang,

Zhen Zhan

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Abstract The microenvironmental changes on the skeleton of covalent organic frameworks (COFs) have an ineluctable impact photocatalytic performance. However, precise control at atomic level adjacent units and synergistic effect between imine bonds process are frequently overlooked. Herein, we develop various COFs with different nitrogen contents for (-C = N-) applied them to H2O2 photosynthesis. Distinct from traditional reactions, adsorption activation oxygen molecules may predominate over photogenerated charge migration in generation process. Specifically, -C N- atoms can more conducive lower reaction energy barrier, thereby facilitating reduction (ORR, O2 → 1O2 ●O2− H2O2). Notably, under AM 1.5G illumination, efficiency photosynthesis COF-T33 be up 88 mmol g− 1 h− 1, which is highest value reported so far similar conditions. Furthermore, only after 5 hours light irradiation, obtained content reach 0.44 wt%, meeting requirements industrial applications. This work deeply uncovers internal mechanism regulation microenvironment

Language: Английский

Citations

0