{
  "abstract": "Developing strategies for photocatalytic reduction of low-concentration CO₂ under ambient conditions is essential for mitigating global warming and addressing energy and carbon resource shortages. The amine scrubbing method (ASM), which captures dilute CO₂ as carbamic acid using low-cost primary and secondary amines, is widely employed to generate concentrated CO₂. However, releasing CO₂ from carbamic acid to generate highly concentrated CO₂ requires high-temperature heating, resulting in substantial energy consumption and cost. Herein, we report the integration of ASM with photocatalytic CO₂ reduction. A newly synthesized complex [Ru(bpy)(P-P)(CO)(H)]⁺ (Ru-H⁺; bpy = 2,2'-bipyridine, P-P = Ph₂PC₂H₄PPh₂) serves as an efficient catalyst for reducing CO₂ at low concentrations, even below 0.34%, in the presence of an Ir-based photosensitizer and a reductant (TONHCOOH ≥ 1925, Φ HCOOH = 39%, selectivityHCOOH > 97%). This system quantitatively converts CO₂ captured by amines such as monoethanolamine into formic acid at room temperature. In this process, CO₂ released from carbamic acid in solution is rapidly consumed via photocatalytic reduction, enabling efficient utilization of low-concentration CO₂ without requiring energy-intensive regeneration processes.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University 1-3-1 Kagamiyama, Higashi-Hiroshima Hiroshima 739-8526 Japan iosamu@hiroshima-u.ac.jp.",
    "Department of Chemistry, School of Science, Institute of Science Tokyo (Tokyo Institute of Technology) 2-12-1, O-okayama Meguro-ku Tokyo 152-8550 Japan."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Naoki Hosokawa"
    },
    {
      "affs": [
        0
      ],
      "name": "Shunya Uno"
    },
    {
      "affs": [
        1
      ],
      "name": "Hiroharu Watanabe"
    },
    {
      "affs": [
        0
      ],
      "name": "Osamu Ishitani",
      "orcid": "0000-0001-9557-7854"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8tkscfrgjee4e.bib",
  "cited_by": 0,
  "doi": "10.1039/d6sc05488a",
  "fulltext_url": "https://europepmc.org/articles/PMC13662752",
  "id": "8tkscfrgjee4e",
  "issns": [
    "2041-6520",
    "2041-6539"
  ],
  "landing_url": "https://europepmc.org/article/MED/42877607",
  "language": "eng",
  "licence": "CC-BY-NC",
  "licence_label": "CC BY-NC",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2105|Advanced Photocatalysis Techniques"
    ]
  ],
  "openalex": "W7220977638",
  "pdf_url": "https://europepmc.org/articles/PMC13662752?pdf=render",
  "pmcid": "PMC13662752",
  "pmid": "42877607",
  "published": "2026-10-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8tkscfrgjee4e.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:00Z",
      "native_id": "MED:42877607",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42877607"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "journal-openalex:1605|Supramolecular Chemistry and Complexes",
      "subfield": "organic"
    }
  ],
  "title": "Emergent integration of the amine scrubbing method into photocatalytic CO₂ reduction.",
  "title_text": "Emergent integration of the amine scrubbing method into photocatalytic CO₂ reduction.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:19:00Z",
  "url": "https://research.draconitic.com/paper/8tkscfrgjee4e",
  "venue": "Chemical science",
  "versions": []
}