{
  "abstract": "Photocatalytic hydrogen peroxide (H2O2) production offers a sustainable strategy for solar-to-chemical energy conversion and environmental remediation. However, the intrinsic role of interfacial hydrophilicity in aqueous photocatalysis remains rarely studied, largely due to the lack of a well-defined model system. Covalent organic frameworks (COFs), with their chemically tunable structure, provide an ideal platform to address this gap. Herein, we employ two vinylene-linked COFs with similar conjugated backbones but distinct interfacial hydrophilicity, namely TMT-TPA COF and TMT-BPA COF. The higher nitrogen atom density in TMT-TPA COF endows it with significantly enhanced surface hydrophilicity (contact angle: 49°), compared to TMT-BPA COF (contact angle: 101°). The enhanced hydrophilicity is associated with a more favorable interfacial microenvironment, which facilitates water adsorption and interfacial charge transfer. Consequently, even in a pure water-air system under visible-light irradiation, the more hydrophilic TMT-TPA COF achieves a H2O2 production rate of 3.69 mmol g−1 h−1 with good stability, approximately 2.49 times higher than that of TMT-BPA COF. Mechanistic studies reveal that TMT-TPA COF catalytic H2O2 generation predominantly involves a stepwise single-electron oxygen reduction pathway comprising a ·O2− intermediate, while photogenerated holes are consumed through water oxidation. This work highlights interfacial hydrophilicity as a critical enabler for designing high-performance photocatalysts.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "name": "Shun-Feng Li"
    },
    {
      "name": "Ya Lu"
    },
    {
      "name": "Mei-Mei Zhang"
    },
    {
      "name": "Xing Su"
    },
    {
      "name": "Fan Qiu"
    },
    {
      "name": "Peng-Ju Tian"
    },
    {
      "name": "Yubin Fu"
    },
    {
      "name": "Paolo Samorì"
    },
    {
      "name": "Shun-Qi Xu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2wq3qxmqmdvy4.bib",
  "cited_by": 1,
  "doi": "10.1039/d6lf00168h",
  "fulltext_url": null,
  "id": "2wq3qxmqmdvy4",
  "issns": [
    "2755-3701"
  ],
  "landing_url": "https://univoak.hal.science/hal-05751558v1",
  "language": "en",
  "licence": "CC-BY-NC-4.0",
  "licence_label": "CC BY-NC 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.chim"
    ],
    [
      "openalex",
      "2505|Covalent Organic Framework Applications"
    ]
  ],
  "openalex": "W7167940757",
  "pdf_url": "https://univoak.hal.science/hal-05751558/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-10",
  "publisher": "Royal Society of Chemistry",
  "ris": "https://research.draconitic.com/paper/2wq3qxmqmdvy4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:35Z",
      "native_id": "hal-05751558",
      "source": "hal",
      "url": "https://univoak.hal.science/hal-05751558v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Covalent Organic Framework Applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Regulating interfacial hydrophilicity in vinylene-linked covalent organic frameworks for efficient photocatalytic H2O2 production in water and air",
  "title_text": "Regulating interfacial hydrophilicity in vinylene-linked covalent organic frameworks for efficient photocatalytic H2O2 production in water and air",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:35Z",
  "url": "https://research.draconitic.com/paper/2wq3qxmqmdvy4",
  "venue": "RSC Applied Interfaces",
  "versions": []
}