Simultaneous High-Efficiency Photocatalytic Production of H2O2 and Synthesis of 3-HBA Using COFs Broadened by π Conjugate Networks and Photogenerated Charges DOI

Zeyu Sun,

Ling Li,

Shuyan Fan

et al.

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

Published: April 16, 2025

The coupling of H2O2 photosynthesis with photogenerated electrons and holes, when used separately, not only realizes the production value-added products but also maximizes energy utilization. However, achieving this remains a challenge. Here, we report three variations triazine-based covalent organic frameworks (COFs) featuring phenyl π-π-conjugated structures furthermore introduce phenoxy COF p-π-conjugated structure as control to effectively produce hydrogen peroxide. It is found that strong π-π conjugate network triggers pronounced optical response provides channels for charge transfer electron enrichment. results showed yield TTBA-TP-COF (TTBA = 4,4,4-(1,3,5-triazine-2,4,6-triyl) tris (([1,1-biphenyl]-4-amine)), TP 2,4,6-triformylphloroglucinol) reached an impressive 11,982 μmol/g/h, which was 1.49 times, 8.77 7.20 times TAPT-TP-COF (TAPT 4,4',4″-(1,3,5-triazine-2,4,6-triyl)trianiline), MA-TP-COF (MA melamine), TTTT-TP-COF (TTTT 4,4',4″-((1,3,5-triazine-2,4,6-triyl)tris(oxy))trianiline), respectively. Considering atomic economy, pioneeringly put forward strategy using holes separately. Concurrently, photocatalytic peroxide, acetaldehyde produced by hole oxidation, sacrificial ethanol served primary feedstock, aldol condensation successfully catalyzed 3-hydroxybutyraldehyde (3-HBA) under alkaline conditions provided small amount triethylamine. concentration 3-HBA confirmed be 23.84 mmol/L means mass spectrometry high-performance liquid chromatography.

Language: Английский

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
Simultaneous High-Efficiency Photocatalytic Production of H2O2 and Synthesis of 3-HBA Using COFs Broadened by π Conjugate Networks and Photogenerated Charges DOI

Zeyu Sun,

Ling Li,

Shuyan Fan

et al.

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

Published: April 16, 2025

The coupling of H2O2 photosynthesis with photogenerated electrons and holes, when used separately, not only realizes the production value-added products but also maximizes energy utilization. However, achieving this remains a challenge. Here, we report three variations triazine-based covalent organic frameworks (COFs) featuring phenyl π-π-conjugated structures furthermore introduce phenoxy COF p-π-conjugated structure as control to effectively produce hydrogen peroxide. It is found that strong π-π conjugate network triggers pronounced optical response provides channels for charge transfer electron enrichment. results showed yield TTBA-TP-COF (TTBA = 4,4,4-(1,3,5-triazine-2,4,6-triyl) tris (([1,1-biphenyl]-4-amine)), TP 2,4,6-triformylphloroglucinol) reached an impressive 11,982 μmol/g/h, which was 1.49 times, 8.77 7.20 times TAPT-TP-COF (TAPT 4,4',4″-(1,3,5-triazine-2,4,6-triyl)trianiline), MA-TP-COF (MA melamine), TTTT-TP-COF (TTTT 4,4',4″-((1,3,5-triazine-2,4,6-triyl)tris(oxy))trianiline), respectively. Considering atomic economy, pioneeringly put forward strategy using holes separately. Concurrently, photocatalytic peroxide, acetaldehyde produced by hole oxidation, sacrificial ethanol served primary feedstock, aldol condensation successfully catalyzed 3-hydroxybutyraldehyde (3-HBA) under alkaline conditions provided small amount triethylamine. concentration 3-HBA confirmed be 23.84 mmol/L means mass spectrometry high-performance liquid chromatography.

Language: Английский

Citations

0