{
  "abstract": "Water contamination by organic dyes remains a major environmental challenge due to their toxicity, persistence, and resistance to conventional treatment methods. In this study, a plasmonic silver-modified metal–organic framework monolith was successfully synthesized via a sol–gel approach. Incorporation of Ag species during gel formation ensured homogeneous distribution within the ZIF-8 framework, which was followed by in situ chemical reduction to produce a reduced material denoted Ag0@ZIF-8. Comprehensive characterization confirmed the structural integrity of the ZIF-8 framework, with TEM revealing electron-dense silver domains and UV–vis DRS showing enhanced visible-light absorption associated with localized surface plasmon resonance (LSPR). The photocatalytic performance of Ag0@ZIF-8 was evaluated through the degradation of methylene blue under visible light. The catalyst exhibited significantly enhanced activity compared to pristine ZIF-8 and the Ag+@ZIF-8 monolith, achieving a maximum degradation efficiency of 90.4 ± 1.0% under optimized conditions (pH 8, 60 mg of catalyst, 60 min irradiation). Kinetic studies confirmed pseudo-first-order behavior with a rate constant of 0.0358 min–1 (R2 = 0.9923). Scavenger experiments revealed that superoxide radicals (•O2–) played the dominant role in methylene blue degradation, with hydroxyl radicals (•OH) and photogenerated holes (h+) making secondary contributions. The Ag0@ZIF-8 monolith also demonstrated good reusability, retaining over 75% of its initial activity after five cycles. Overall, this work highlights the synergistic interaction between plasmonic silver species and the ZIF-8 monolith, resulting in enhanced visible-light-driven photocatalytic degradation of organic pollutants, offering a promising strategy for wastewater treatment applications.",
  "abstract_shown": true,
  "affiliations": [
    "Midlands State University , , Private Bag 9055, Senga Road , ,",
    "University of Pretoria , , Private Bag X20 , ,"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Piwai Tshuma",
      "orcid": "0009-0005-1272-6620"
    },
    {
      "affs": [
        0
      ],
      "name": "Mercy Chaparadza",
      "orcid": "0009-0007-0905-4901"
    },
    {
      "affs": [
        1
      ],
      "name": "Thapelo Seimela"
    },
    {
      "affs": [
        1
      ],
      "name": "Mmantsae Diale",
      "orcid": "0000-0002-6035-6688"
    },
    {
      "affs": [
        0
      ],
      "name": "Nicola Vimbainashe Poshayi",
      "orcid": "0009-0001-5968-4457"
    },
    {
      "affs": [
        0
      ],
      "name": "Linia Gedi Marazani",
      "orcid": "0009-0007-9009-1995"
    },
    {
      "affs": [
        0
      ],
      "name": "Gift Mehlana",
      "orcid": "0000-0003-1294-0895"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ez369qx8hbw12.bib",
  "cited_by": 0,
  "doi": "10.1021/acsomega.6c05428",
  "fulltext_url": "https://europepmc.org/articles/PMC13688574",
  "id": "ez369qx8hbw12",
  "issns": [
    "2470-1343"
  ],
  "landing_url": "https://pubs.acs.org/acsodf/article/11/41/63033/5448425/Plasmonic-Ag-ZIF-8-Monolith-for-Enhanced-Visible",
  "language": "eng",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2105|Advanced Photocatalysis Techniques"
    ]
  ],
  "openalex": "W7221131060",
  "pdf_url": "https://pubs.acs.org/doi/pdf/10.1021/acsomega.6c05428",
  "pmcid": "PMC13688574",
  "pmid": "42923461",
  "published": "2026-10-09",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/ez369qx8hbw12.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:39Z",
      "native_id": "10.1021/acsomega.6c05428",
      "source": "crossref",
      "url": "https://pubs.acs.org/acsodf/article/11/41/63033/5448425/Plasmonic-Ag-ZIF-8-Monolith-for-Enhanced-Visible"
    },
    {
      "first_seen": "2026-10-30T12:20:33Z",
      "native_id": "MED:42923461",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42923461"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2470-1343",
      "subfield": "general"
    }
  ],
  "title": "Plasmonic Ag@ZIF-8 Monolith for Enhanced Visible-Light Photocatalytic Degradation of Methylene Blue",
  "title_text": "Plasmonic Ag@ZIF-8 Monolith for Enhanced Visible-Light Photocatalytic Degradation of Methylene Blue",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:20:33Z",
  "url": "https://research.draconitic.com/paper/ez369qx8hbw12",
  "venue": "ACS Omega",
  "versions": []
}