{
  "abstract": "The discharge of persistent synthetic dyes, such as Carbol Fuchsin (CF), from textile and related industries constitutes a significant environmental and public health concern because oftheir toxicity and resistance to natural degradation. This study presents the development and application of a low-cost, sustainable adsorbent—activated carbon derived from rice husk ash (ARHA)—for the efficient removal of CF from contaminated water. The adsorbent was characterized using FT-IR, SEM-EDX, XRD, and zeta potential analysis, revealing a mesoporous, amorphous structure with a specific surface area of 50–270 m²/g and a point of zero charge (pHpzc) at 8.3. Systematic batch adsorption studies were conducted to optimize the process parameters, achieving a maximum removal efficiency of >96% at an adsorbent dosage of 0.08 g/50 mL, contact time of 150 min, and pH 9.0. The adsorption kinetics were best described by the pseudo-second-order model, indicating that chemisorption was the rate-limiting step. The equilibrium isotherm data were well-fitted by the Langmuir model, confirming monolayer adsorption with an exceptionally high maximum capacity of 205.24 mg/g. Thermodynamic analysis (negative ΔG° and ΔH°) established the process as spontaneous and exothermic. The findings demonstrate that ARHA, an agricultural waste derivative, is a highly effective, eco-friendly, and economically viable material for the advanced treatment of dye-laden industrial wastewater, offering a promising alternative to conventional remediation methods.",
  "abstract_shown": true,
  "affiliations": [
    "Babasaheb Bhimrao Ambedkar University, A Central University, Lucknow, India",
    "Babasaheb Bhimrao Ambedkar University, A Central University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Asmit Patel"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Adarsh Pratap Singh",
      "orcid": "0000-0002-7975-7334"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Anshika Sharma"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Priya Tiwari"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Shilpa Nair"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Shivam Yadav"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6hga2p9cz0k5n.bib",
  "cited_by": 5,
  "doi": "10.1007/s44371-026-00658-w",
  "fulltext_url": null,
  "id": "6hga2p9cz0k5n",
  "issns": [
    "3005-1193"
  ],
  "landing_url": "https://doi.org/10.1007/s44371-026-00658-w",
  "language": "en",
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2312|Adsorption and biosorption for pollutant removal"
    ]
  ],
  "openalex": "W4417360274",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/s44371-026-00658-w.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-05-14",
  "publisher": "Springer, Singapore",
  "ris": "https://research.draconitic.com/paper/6hga2p9cz0k5n.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:26:58Z",
      "native_id": "W4417360274",
      "source": "openalex",
      "url": "https://doi.org/10.1007/s44371-026-00658-w"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "openalex:2312|Adsorption and biosorption for pollutant removal",
      "subfield": "hydrology-soils"
    }
  ],
  "title": "Activated rice husk ash: a sustainable and high capacity adsorbent for the remediation of Carbol Fuchsin dye from aqueous effluents",
  "title_text": "Activated rice husk ash: a sustainable and high capacity adsorbent for the remediation of Carbol Fuchsin dye from aqueous effluents",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T13:21:21Z",
  "url": "https://research.draconitic.com/paper/6hga2p9cz0k5n",
  "venue": "Discover Chemistry.",
  "versions": []
}