{
  "abstract": "Perfluorooctane sulfonate (PFOS) and 6:2 chlorinated polyfluoroalkyl ether sulfonate (F-53B) are persistent per- and polyfluoroalkyl substances of concern in aquatic environments. This study compared their anaerobic reductive transformation by nanoscale zero-valent zinc (nZn⁰), with and without vitamin B12 (VB12). Solutions containing 1 mg/L PFOS or F-53B were treated with nZn⁰ (278 mg/L) and, where indicated, 0.05 mmol/L VB12 (67.8 mg/L) at pH 8.5 and 30 °C for 20 days. After correction for losses observed in reagent-free blanks, PFOS loss was negligible with nZn⁰ alone but reached approximately 34% with nZn⁰ + VB12, and the corresponding defluorination rate was 33.9%. In contrast, F-53B showed approximately 85% blank-corrected loss by day 6 with either nZn⁰ alone or nZn⁰ + VB12, while defluorination rates reached 38.0% and 30.7%, respectively, indicating no enhancing benefit of VB12 for F-53B under the studied conditions. Nominal-mass LC-MS/MS features consistent with partially defluorinated and hydrogen-substituted products were observed, and tentative transformation pathways were proposed. These results demonstrated compound-specific effects of VB12 and emphasized the distinction among loss, transformation and defluorination when evaluating PFAS destruction.",
  "abstract_shown": true,
  "affiliations": [
    "Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Shunshun Gao"
    },
    {
      "affs": [
        0
      ],
      "name": "Tao Wang",
      "orcid": "0009-0001-0731-8527"
    },
    {
      "affs": [
        0
      ],
      "name": "Yun Yang",
      "orcid": "0009-0000-6491-5603"
    },
    {
      "affs": [
        0
      ],
      "name": "Qingzhi Cai",
      "orcid": "0009-0000-6512-7430"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiaoxia Lu",
      "orcid": "0000-0003-2100-4601"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3233w7x5hp0td.bib",
  "cited_by": 0,
  "doi": "10.3390/toxics14100844",
  "fulltext_url": "https://europepmc.org/articles/PMC13709694",
  "id": "3233w7x5hp0td",
  "issns": [
    "2305-6304"
  ],
  "landing_url": "https://europepmc.org/article/MED/42931631",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2304|Per- and polyfluoroalkyl substances research"
    ]
  ],
  "openalex": "W7214079882",
  "pdf_url": "https://europepmc.org/articles/PMC13709694?pdf=render",
  "pmcid": "PMC13709694",
  "pmid": "42931631",
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3233w7x5hp0td.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "MED:42931631",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42931631"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2304|Per- and polyfluoroalkyl substances research",
      "subfield": "environmental"
    }
  ],
  "title": "Effects of Vitamin B12 on the Reductive Transformation of PFOS and F-53B by Nanoscale Zero-Valent Zinc.",
  "title_text": "Effects of Vitamin B12 on the Reductive Transformation of PFOS and F-53B by Nanoscale Zero-Valent Zinc.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/3233w7x5hp0td",
  "venue": "Toxics",
  "versions": []
}