{
  "abstract": "Arsenic contamination, particularly the more toxic and mobile As(III), poses a significant threat to water safety. Although manganese oxides can oxidize As(III), their application is often limited by surface passivation and poor regeneration. Here, we synthesized a bio-hybrid material, BioMnOx@Fh, via Mn(II) oxidation by Pseudomonas putida MnB1 in the presence of ferrihydrite (Fh), and evaluated its performance for As(III) oxidation and removal. Compared with BioMnOx alone, BioMnOx@Fh showed a higher Mn(IV) fraction (39.6% vs. 27.9%) and faster As(III) oxidation (kox = 0.18 ± 0.04 h−1 vs. 0.080 ± 0.013 h−1), and 90.31 ± 2.11% dissolved total As removal under the tested conditions. Relative to abiotic MnOx@Fh, the biogenic composite showed lower Mn(II) release and more sustained redox reactivity, consistent with biologically maintained Mn redox cycling. Fh functioned not only as a sorptive iron phase, but was also associated with the enhanced regeneration of reactive high-valence Mn species. Together, the results are consistent with a coupled treatment process in which the Fh-containing phase promotes arsenic retention, whereas the biogenic Mn oxide phase sustains oxidative transformation of As(III). Alginate encapsulation further improved material recoverability and supported short-term reuse of the composite. These results suggest that coupling ferrihydrite with biologically active Mn oxides, combined with material encapsulation, is a promising strategy for As(III) treatment.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "name": "Feng Zhang"
    },
    {
      "name": "Huilin Yin"
    },
    {
      "name": "Stanislav Jelavić"
    },
    {
      "name": "Bruno Lanson"
    },
    {
      "name": "Xiaoming Wang"
    },
    {
      "name": "Hui Yin"
    },
    {
      "name": "Wenfeng Tan"
    },
    {
      "name": "Xionghan Feng"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4pv3ng4dsyd51.bib",
  "cited_by": 0,
  "doi": "10.1016/j.cej.2026.176560",
  "fulltext_url": null,
  "id": "4pv3ng4dsyd51",
  "issns": [
    "1385-8947"
  ],
  "landing_url": "https://insu.hal.science/insu-05795890v1",
  "language": "en",
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sdu"
    ],
    [
      "hal",
      "1.sdu.envi"
    ],
    [
      "openalex",
      "2304|Arsenic contamination and mitigation"
    ]
  ],
  "openalex": "W7155214779",
  "pdf_url": "https://insu.hal.science/insu-05795890/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-06-15",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/4pv3ng4dsyd51.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:55Z",
      "native_id": "insu-05795890",
      "source": "hal",
      "url": "https://insu.hal.science/insu-05795890v1"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "hal:1.sdu.envi",
      "subfield": "environmental-science"
    }
  ],
  "title": "Efficient As(III) oxidation and removal by encapsulated BioMnOx@Fh with ferrihydrite-promoted Mn regeneration",
  "title_text": "Efficient As(III) oxidation and removal by encapsulated BioMnOx@Fh with ferrihydrite-promoted Mn regeneration",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:55Z",
  "url": "https://research.draconitic.com/paper/4pv3ng4dsyd51",
  "venue": "Chemical Engineering Journal",
  "versions": []
}