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<p>The sustainable and eco-friendly biomass derived from <i>Artocarpus heterophyllus</i> (jack fruit) peduncle serves as an effective adsorbent for the removal of cationic dyes specifically methylene blue, rhodamine B, and malachite green from aqueous solutions. Batch adsorption experiments were employed to systematically optimize the testing factors such as pH, initial concentration, adsorbent dosage, and contact time on dye removal efficiency at 25&#xa0;°C. The adsorption equilibrium was achieved within 30&#xa0;min with maximum adsorption capacities of 115.51&#xa0;mg/g for MB, 103.92&#xa0;mg/g for RhB, and 76.23&#xa0;mg/g for MG as determined using the Langmuir isotherm model. Isotherm, kinetics, and thermodynamic models validated that the adsorption of dyes was spontaneous, endothermic, and consistent with chemisorption mechanisms. Regeneration and recyclability studies demonstrated the biomass achieved excellent dye removal efficiency across five adsorption–desorption cycles. The real water studies affirmed the potential as an efficient adsorbent indicating a promising future for real-world applications. Moreover, leveraging agricultural waste like jackfruit peduncle biomass contributes to waste valorization and supports green technology initiatives paving the way for innovative approaches to waste treatment and environmental management.</p> Graphical abstract <p></p>

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Utilization of biomass from Artocarpus heterophyllus as a sustainable adsorbent for cationic dyes from water: mechanistic insights and practical applicability

  • 期刊论文

  • 发表日期：

    2025年3月4日

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  • Savitha E. V,
  • Beena Mathew,
  • Sam John

摘要

The sustainable and eco-friendly biomass derived from Artocarpus heterophyllus (jack fruit) peduncle serves as an effective adsorbent for the removal of cationic dyes specifically methylene blue, rhodamine B, and malachite green from aqueous solutions. Batch adsorption experiments were employed to systematically optimize the testing factors such as pH, initial concentration, adsorbent dosage, and contact time on dye removal efficiency at 25 °C. The adsorption equilibrium was achieved within 30 min with maximum adsorption capacities of 115.51 mg/g for MB, 103.92 mg/g for RhB, and 76.23 mg/g for MG as determined using the Langmuir isotherm model. Isotherm, kinetics, and thermodynamic models validated that the adsorption of dyes was spontaneous, endothermic, and consistent with chemisorption mechanisms. Regeneration and recyclability studies demonstrated the biomass achieved excellent dye removal efficiency across five adsorption–desorption cycles. The real water studies affirmed the potential as an efficient adsorbent indicating a promising future for real-world applications. Moreover, leveraging agricultural waste like jackfruit peduncle biomass contributes to waste valorization and supports green technology initiatives paving the way for innovative approaches to waste treatment and environmental management.

Graphical abstract