Evidence map›Paper›PMID 41731019›Full record

ArticleScientific reports2026

Sintered poultry-base waste as low-cost adsorbent for the uptake of Congo red: insight into kinetics, isotherms and thermodynamics.

Salah Ud Din, Arogundade Ibrahim, Ali Shawabkeh, Khairia Mohammed Al-Ahmary, Nuha Y Elamin, Saedah R Al-Mhyawi, Hamad AlMohamadi, Mohammad Elamin, Jamelah S Al-Otaibi

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Salah Ud DinDepartment of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan.
Arogundade IbrahimDepartment of Chemical Sciences, Mountain Top University, Ibafo, Ogun State, Nigeria. ibrahimarogundade896@gmail.com.
Ali ShawabkehCollege of Engineering and Technology, American University of the Middle East, Egaila 54200, Kuwait.
Khairia Mohammed Al-AhmaryDepartment of Chemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia.
Nuha Y ElaminDepartment of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 5701, Riyadh, 11623, Saudi Arabia.
Saedah R Al-MhyawiDepartment of Chemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia.
Hamad AlMohamadiDepartment of Chemical Engineering, Faculty of Engineering, Islamic University of Madinah, Madinah, Saudi Arabia.
Mohammad ElaminDepartment of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 5701, Riyadh, 11623, Saudi Arabia.
Jamelah S Al-OtaibiDepartment of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.

Funding

Princess Nourah bint Abdulrahman University Researchers SupPrincess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia PNURSP2026R13
6 · The paper itself

Abstract

The presence of dyes in wastewater constitutes environmental pollution which pose severe concern to not only human existence but also the entire eco-systems requiring urgent and effective treatment techniques. This research investigates the valorization of poultry-based waste as a sustainable and low-cost adsorbent for the uptake of Congo red (CR) dye from aqueous solutions. Poultry-based waste was thermally treated through sintering at 650 °C to form sintered poultry-based waste (SPBW), and its adsorption performance was compared with that of untreated poultry-based waste (PBW). Comprehensive characterization with SEM, FT-IR, XRD, BET, pHₚzc, and TGA indicated that sintering greatly improved the pore structure, surface properties, functional group stability, and adsorption site accessibility. Adsorption equilibrium was achieved within 120 min and 100 min for SPBW and PBW at a pH of 4.0 and 2.0, with SPBW exhibiting superior adsorption capacity and stability compare with PBW. Kinetic data reveal that CR uptake onto PBW and SPBW followed the pseudo-first-order model. Data from equilibrium investigation confirmed Langmuir fitted well with PBW, while Freundlich fitted well the SPBW. PBW and SPBW showed maximum monolayer adsorption capacities of 40.16 mg g−1and 60.23 mg g⁻¹ respectively. Thermodynamic determinations confirmed that the adsorption process was spontaneous and endothermic, with ΔH° values of 16.93 kJ/mol for PBW and 32.55 kJ/mol for SPBW. Desorption studies showed good regeneration potential over multiple cycles, most especially for SPBW. In all, the results demonstrate that sintered poultry-based waste is an efficient, environmentally sustainable, and reusable adsorbent for anionic dye removal from wastewater.

Indexed as

AdsorptionCongo redSintered poultry wasteValorizationWastewater

Identifiers

PMID41731019
PMCPMC13031793

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