Structural design and property regulation of organic polymers for photocatalytic synthesis of H2O2 DOI Creative Commons
Mingyang Xu,

Rongchen Shen,

Y. L. Mo

и другие.

InfoScience., Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract Hydrogen peroxide (H 2 O ), an environmentally benign oxidizer, finds extensive applications in pulp bleaching, wastewater treatment, and medical sterilization. Photocatalytic H synthesis via water oxygen activation on semiconductor surfaces presents a sustainable production strategy. Notably, structurally tunable organic photocatalysts have emerged as promising candidates, which targeted molecular engineering can boost the photocatalytic performance by enlarging specific surface areas, extending light absorption ranges, facilitating charge carrier transport‐separation dynamics. Given growing significance of synthesis, comprehensive review this field has become imperative. This paper offers systematic examination visible‐light‐driven using various photocatalysts, including graphitic carbon nitride (g‐C 3 N 4 resorcinol‐formaldehyde (RF) resin, covalent frameworks (COFs), linear conjugated polymers (LCPs). The focus lies fundamental mechanistic elucidation, design reaction pathways active sites, modification strategies, establishment efficient systems. Extensive studies correlated efficiency with interfacial electron transfer kinetics spatial separation. Therefore, we methodically analyze key determinants governing photogenerated dynamics present strategies for enhancement. Furthermore, discuss emerging application scenarios enabled generation. Importantly, critically evaluates persistent challenges cutting‐edge solutions visible‐light‐mediated ultimately providing principles developing high‐efficiency photocatalysts.

Язык: Английский

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

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Апрель 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.

Язык: Английский

Процитировано

0
Structural design and property regulation of organic polymers for photocatalytic synthesis of H2O2 DOI Creative Commons
Mingyang Xu,

Rongchen Shen,

Y. L. Mo

и другие.

InfoScience., Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract Hydrogen peroxide (H 2 O ), an environmentally benign oxidizer, finds extensive applications in pulp bleaching, wastewater treatment, and medical sterilization. Photocatalytic H synthesis via water oxygen activation on semiconductor surfaces presents a sustainable production strategy. Notably, structurally tunable organic photocatalysts have emerged as promising candidates, which targeted molecular engineering can boost the photocatalytic performance by enlarging specific surface areas, extending light absorption ranges, facilitating charge carrier transport‐separation dynamics. Given growing significance of synthesis, comprehensive review this field has become imperative. This paper offers systematic examination visible‐light‐driven using various photocatalysts, including graphitic carbon nitride (g‐C 3 N 4 resorcinol‐formaldehyde (RF) resin, covalent frameworks (COFs), linear conjugated polymers (LCPs). The focus lies fundamental mechanistic elucidation, design reaction pathways active sites, modification strategies, establishment efficient systems. Extensive studies correlated efficiency with interfacial electron transfer kinetics spatial separation. Therefore, we methodically analyze key determinants governing photogenerated dynamics present strategies for enhancement. Furthermore, discuss emerging application scenarios enabled generation. Importantly, critically evaluates persistent challenges cutting‐edge solutions visible‐light‐mediated ultimately providing principles developing high‐efficiency photocatalysts.

Язык: Английский

Процитировано

0