{
  "abstract": "Efficient interfacial carrier transport and charge separation are critical for maximizing photocatalytic performance. Herein, a 2D/2D g-C3N4/BiOBr heterostructure photocatalyst is constructed using a solvent-free, high-energy ball-milling approach, which results in two-dimensional BiOBr nanoflakes evenly anchored on two-dimensional ultrathin g-C3N4 nanosheets. This tailored architectural design expands the specific surface area, increases active site exposure, and optimizes interfacial contact. For both the visible-light-driven oxidative coupling of primary amines and tetracycline degradation, the g-C3N4/BiOBr composite exhibits enhanced reactivity. The optimized composite (with 5 wt% g-C3N4) achieves an 80.1% yield and 95.2% imine selectivity for N-benzylidenebenzylamine, as well as a removal efficiency of 84.3% for tetracycline. Combined material characterizations and density functional theory (DFT) calculations confirm that the improvement in photocatalytic performance arises from the constructed S-scheme heterojunction across the g-C3N4/BiOBr contact interface. Under this charge transfer mode, photogenerated electrons in the conduction band (CB) of BiOBr selectively recombine with holes in the valence band g-C3N4. The electrons and holes with higher energy are respectively preserved in the CB of g-C3N4 and the VB of BiOBr to drive the corresponding surface reactions. The unique 2D/2D structure of the composite favors mass transfer processes in the reaction system while exposing abundant reactive sites, which can also enhance the photocatalytic performance. In addition, the g-C3N4/BiOBr S-scheme photocatalyst exhibits excellent reusability. This study offers a novel perspective for constructing high-performance S-scheme photocatalysts applied in organic synthesis.",
  "abstract_shown": true,
  "affiliations": [
    "College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China",
    "Department of Energy Storage/Conversion Engineering (BK21 FOUR) of Graduate School, Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeonju-si 54896, Jeollabuk-do, Republic of Korea",
    "Kemai Chemical Co., Ltd., Tianjin 300270, China",
    "Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, Tianjin 300457, China"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 10,
  "authors": [
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Zhen Li",
      "orcid": "0000-0002-3307-5979"
    },
    {
      "affs": [
        0
      ],
      "name": "Dongmei Wang"
    },
    {
      "affs": [
        0
      ],
      "name": "Ruijie Li"
    },
    {
      "affs": [
        2
      ],
      "name": "Jing An"
    },
    {
      "affs": [
        2
      ],
      "name": "Xingjie Xue"
    },
    {
      "affs": [
        0
      ],
      "name": "Yue Yao",
      "orcid": "0000-0003-0177-4035"
    },
    {
      "affs": [
        0
      ],
      "name": "Yan Jiang"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiaoyuan Liao"
    },
    {
      "affs": [
        1
      ],
      "name": "Dong Jin Yoo",
      "orcid": "0000-0002-5707-3361"
    },
    {
      "affs": [
        0,
        3
      ],
      "name": "Shuxiang Lyu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/38p2e843vap1h.bib",
  "cited_by": 0,
  "doi": "10.3390/catal16100905",
  "fulltext_url": null,
  "id": "38p2e843vap1h",
  "issns": [
    "2073-4344"
  ],
  "landing_url": "https://www.mdpi.com/2073-4344/16/10/905",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2105|Advanced Photocatalysis Techniques"
    ]
  ],
  "openalex": "W7221615036",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-13",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/38p2e843vap1h.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:43Z",
      "native_id": "10.3390/catal16100905",
      "source": "crossref",
      "url": "https://www.mdpi.com/2073-4344/16/10/905"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2073-4344",
      "subfield": "catalysis"
    }
  ],
  "title": "A 2D/2D g-C3N4/BiOBr S-Scheme Heterojunction for Photocatalytic Oxidative Coupling of Benzylamine and Degradation of Tetracycline: Enhanced Charge Separation and Mechanistic Insights",
  "title_text": "A 2D/2D g-C3N4/BiOBr S-Scheme Heterojunction for Photocatalytic Oxidative Coupling of Benzylamine and Degradation of Tetracycline: Enhanced Charge Separation and Mechanistic Insights",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:43Z",
  "url": "https://research.draconitic.com/paper/38p2e843vap1h",
  "venue": "Catalysts",
  "versions": []
}