Linkage Conversion in Pyrene-based Covalent Organic Frameworks for Promoted Photocatalytic Hydrogen Peroxide Generation in a Biphasic System DOI
Hongfang Yu,

Xuening Zhang,

Qian Chen

et al.

Chemical Research in Chinese Universities, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

Language: Английский

Singlet‐Oxygen‐Driven Cooperative Photocatalytic Coupling of Biomass Valorization and Hydrogen Peroxide Production Using Covalent Organic Frameworks DOI Open Access
Qiang Xue, Hanxi Li, Peng Jin

et al.

Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Abstract Traditional H 2 O photocatalysis primarily depends on photoexcited electrons and holes to drive oxygen reduction water oxidation, respectively. However, singlet ( 1 ), often underappreciated, plays a pivotal role in production. Meanwhile, photocatalytic biomass conversion has attracted attention, yet studies combining synthesis with valorization remain rare typically yield low‐value products. Herein, strategy of furfuryl alcohol (FFA) coupled the efficient co‐production is reported, enabled by covalent organic frameworks (COFs) induced, ‐participated Achmatowicz rearrangement. This study introduces polyimide‐based COF‐N 0‐3 tailored nitrogen content, representing an unprecedently platform for Remarkably, reducing content COF enhances production, significantly boosting generation rate. In FFA, primary pathway production rearrangement, achieving rate ten times higher than that reliant reaction pure water, reaching 4549 µmol g⁻¹ h⁻¹. Mechanism revealed selectively engaged bypassing hole oxidation trigger producing valuable 6‐hydroxy‐(2H)‐pyranone 99% 92% selectivity. work establishes coupling simultaneous biochemicals, offering transformative approach sustainable photocatalysis.

Language: Английский

Citations

1

Customized Design of Covalent Organic Framework with Asymmetric Dual-Function Hybrid Linkages for Promoting H2O2 Photosynthesis in Air and Water DOI

Yuanzhe Jia,

Yuxuan Liu,

Liecheng Guo

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Efficient sacrificial-agent-free photosynthesis of H2O2 from air and water represents the greenest, lowest-cost, most real-time avenue for production but remains a challenging issue. Here, we show general effective approach through structural design on covalent organic frameworks (COFs) with asymmetric dual-function hybrid linkages boosting COFs. Through such can equip COF not only catalytic active center also special function isolating D–A motif, which consequently endows (CI-COF) built significantly enhanced efficiency in generation, transmission, separation photogenerated carriers, relative to (II-COF CC-COF) symmetric single-function single linkages. Correspondingly, performance is by three or five times. Accompanied largely promoted O2 utilization conversion 36.6% 99.9%. A rare dual-channel suggested CI-COF.

Language: Английский

Citations

0

Singlet‐Oxygen‐Driven Cooperative Photocatalytic Coupling of Biomass Valorization and Hydrogen Peroxide Production Using Covalent Organic Frameworks DOI Open Access
Qiang Xue, Hanxi Li, Peng Jin

et al.

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Abstract Traditional H 2 O photocatalysis primarily depends on photoexcited electrons and holes to drive oxygen reduction water oxidation, respectively. However, singlet ( 1 ), often underappreciated, plays a pivotal role in production. Meanwhile, photocatalytic biomass conversion has attracted attention, yet studies combining synthesis with valorization remain rare typically yield low‐value products. Herein, strategy of furfuryl alcohol (FFA) coupled the efficient co‐production is reported, enabled by covalent organic frameworks (COFs) induced, ‐participated Achmatowicz rearrangement. This study introduces polyimide‐based COF‐N 0‐3 tailored nitrogen content, representing an unprecedently platform for Remarkably, reducing content COF enhances production, significantly boosting generation rate. In FFA, primary pathway production rearrangement, achieving rate ten times higher than that reliant reaction pure water, reaching 4549 µmol g⁻¹ h⁻¹. Mechanism revealed selectively engaged bypassing hole oxidation trigger producing valuable 6‐hydroxy‐(2H)‐pyranone 99% 92% selectivity. work establishes coupling simultaneous biochemicals, offering transformative approach sustainable photocatalysis.

Language: Английский

Citations

0

Sacrificial-free H2O2 photosynthesis on Organic-inorganic core–shell heterojunction under visible light Irradiation DOI

Wenya Tang,

Zhuwei Li,

Xiaoran Shi

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137670 - 137670

Published: April 1, 2025

Language: Английский

Citations

0

Linkage Conversion in Pyrene-based Covalent Organic Frameworks for Promoted Photocatalytic Hydrogen Peroxide Generation in a Biphasic System DOI
Hongfang Yu,

Xuening Zhang,

Qian Chen

et al.

Chemical Research in Chinese Universities, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

Language: Английский

Citations

2