{
  "abstract": "Most studies on the recovery of platinum group metals from aqueous solutions focus on adsorption and enrichment, with little emphasis on subsequent separation and purification of the metals from the eluent. Here, a modified jute powder adsorbent (MJP) was prepared via polyethyleneimine functionalization and glutaraldehyde crosslinking to efficiently recover Pt, Pd, and Rh from complex low-concentration platinum-group-metal waste solutions. The adsorption performances and mechanisms and the subsequent separation and purification of the metals from the eluent were systematically investigated. The adsorption behaviors of Pt(iv), Pd(ii), and Rh(iii) were more satisfactorily described using pseudo-second-order kinetic and Langmuir isotherm models. The respective maximum Pt(iv), Pd(ii), and Rh(iii) adsorption capacities of MJP reached 582, 615, and 412 mg g⁻¹, which were 5.82-, 5.50-, and 6.60-fold higher than those of the unmodified jute powder, respectively. Adsorption involved electrostatic attraction, coordination interactions, and partial reduction. Industrial wastewater studies indicated that MJP could effectively enrich the Pt, Pd, and Rh within the eluent, whereas impurity elements, such as Fe, were scarcely enriched. Sequential separation and purification of the enriched eluent by NH4Cl precipitation, NH3 hydrolysis, and NH3 complexation-acid precipitation yielded Pt, Rh, and Pd with direct recovery efficiencies of 98.7%, 96.7%, and 98.0%, respectively. Therefore, MJP can couple front-end adsorption and enrichment with downstream hydrometallurgical purification, providing an effective approach for recovering precious metals from complex low-concentration waste solutions and extending the potential of biomass-based adsorbents in hydrometallurgy.",
  "abstract_shown": true,
  "affiliations": [
    "State Key Laboratory of Precious Metal Functional Materials, Yunnan Precious Metals Laboratory Co., Ltd Kunming 650106 Yunnan China dhg@ipm.com.cn.",
    "Sino-Platinum Metals Resources (Yimen) Co. Ltd Yuxi 653100 China."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 10,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Wang Guozhen"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhang Jingfan",
      "orcid": "0009-0007-9242-2743"
    },
    {
      "affs": [
        0
      ],
      "name": "Liu Kuo"
    },
    {
      "affs": [
        0
      ],
      "name": "Wang Chao"
    },
    {
      "affs": [
        1
      ],
      "name": "Yang Han"
    },
    {
      "affs": [
        1
      ],
      "name": "Liu Lang"
    },
    {
      "affs": [
        0
      ],
      "name": "Kang Xinke"
    },
    {
      "affs": [
        1
      ],
      "name": "Han Jibiao"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhao Jiachun"
    },
    {
      "affs": [
        0
      ],
      "name": "Dong Haigang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0mb3fss3c4c6z.bib",
  "cited_by": 0,
  "doi": "10.1039/d6ra07566e",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13725859/?tool=EBI",
  "id": "0mb3fss3c4c6z",
  "issns": [
    "2046-2069"
  ],
  "landing_url": "https://europepmc.org/article/PMC/PMC13725859",
  "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": [
    [
      "heading",
      "Chemistry"
    ],
    [
      "openalex",
      "2210|Extraction and Separation Processes"
    ]
  ],
  "openalex": "W7225073258",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13725859/pdf/?tool=EBI",
  "pmcid": "PMC13725859",
  "pmid": "42974322",
  "published": "2026-11-02",
  "publisher": "Royal Society of Chemistry",
  "ris": "https://research.draconitic.com/paper/0mb3fss3c4c6z.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T15:20:51Z",
      "native_id": "PMC:PMC13725859",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13725859"
    },
    {
      "first_seen": "2026-11-04T15:20:47Z",
      "native_id": "MED:42974322",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42974322"
    },
    {
      "first_seen": "2026-11-05T12:22:18Z",
      "native_id": "PMC13725859",
      "source": "pmc",
      "url": "https://doi.org/10.1039/d6ra07566e"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "heading:Chemistry",
      "subfield": "general"
    }
  ],
  "title": "Adsorption and enrichment of platinum(iv), palladium(ii), and rhodium(iii) from aqueous solutions using a modified jute powder followed by the separation and purification of the metals",
  "title_text": "Adsorption and enrichment of platinum(iv), palladium(ii), and rhodium(iii) from aqueous solutions using a modified jute powder followed by the separation and purification of the metals",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T12:22:18Z",
  "url": "https://research.draconitic.com/paper/0mb3fss3c4c6z",
  "venue": "RSC advances",
  "versions": []
}