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<p>Industrial wastewater contamination with toxic metals and carcinogenic dyes poses a severe environmental threat, necessitating the development of efficient, eco-friendly, and cost-effective remediation strategies. This study introduces a novel nanostructured cubebinol-chitosan composite bead system for the enhanced removal of heavy metals (Cr, Ni) and hazardous dyes (Rhodamine 6G, Congo red) from industrial effluents. The novelty of this work lies in the synergistic combination of cubebinol, a bioactive phytochemical from <i>Piper cubeba</i>, with chitosan, a biodegradable biopolymer, forming a composite that not only enhances adsorption efficiency but also improves stability and recyclability for sustainable water treatment. Process optimization was conducted using response surface methodology (RSM) with a Box–Behnken design, enabling a systematic evaluation of key operational parameters, including pH, adsorbent dosage, and contact time. Experimental results demonstrated high removal efficiencies, with pH and contact time identified as critical factors influencing adsorption performance. Additionally, preliminary in silico analysis using AutoDock was performed to determine the binding affinity of cubebinol with various dye pollutants, revealing that Congo red and Rhodamine 6G exhibited the highest binding energies. These docking interactions suggest a strong affinity between cubebinol and these dyes, supporting their selection for degradation studies. Comparative analysis with conventional adsorbents highlights the superior adsorption capacity, reusability, and cost-effectiveness of cubebinol-chitosan nanobeads, marking a significant advancement over existing materials. This study presents a scalable and sustainable solution for industrial wastewater treatment, offering an eco-friendly approach to mitigating heavy metal and dye pollution while contributing to environmental sustainability.</p>

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Enhanced remediation of heavy metals and dyes from industrial runoff using nanostructured cubebinol-chitosan composite beads

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年10月10日

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  • S Hari Lakshmi,
  • Thiyagarajan Devasena,
  • Ravindra Pratap Singh,
  • Manzoore Elahi Mohammad Soudagar,
  • Arumugam Suresh,
  • R. Giri Prasad,
  • Bharathi Selvaraj,
  • Kumaran Subramanian,
  • Ali Kudamba,
  • Mohammad Z. Ahmed,
  • M Dhinakaran

摘要

Industrial wastewater contamination with toxic metals and carcinogenic dyes poses a severe environmental threat, necessitating the development of efficient, eco-friendly, and cost-effective remediation strategies. This study introduces a novel nanostructured cubebinol-chitosan composite bead system for the enhanced removal of heavy metals (Cr, Ni) and hazardous dyes (Rhodamine 6G, Congo red) from industrial effluents. The novelty of this work lies in the synergistic combination of cubebinol, a bioactive phytochemical from Piper cubeba, with chitosan, a biodegradable biopolymer, forming a composite that not only enhances adsorption efficiency but also improves stability and recyclability for sustainable water treatment. Process optimization was conducted using response surface methodology (RSM) with a Box–Behnken design, enabling a systematic evaluation of key operational parameters, including pH, adsorbent dosage, and contact time. Experimental results demonstrated high removal efficiencies, with pH and contact time identified as critical factors influencing adsorption performance. Additionally, preliminary in silico analysis using AutoDock was performed to determine the binding affinity of cubebinol with various dye pollutants, revealing that Congo red and Rhodamine 6G exhibited the highest binding energies. These docking interactions suggest a strong affinity between cubebinol and these dyes, supporting their selection for degradation studies. Comparative analysis with conventional adsorbents highlights the superior adsorption capacity, reusability, and cost-effectiveness of cubebinol-chitosan nanobeads, marking a significant advancement over existing materials. This study presents a scalable and sustainable solution for industrial wastewater treatment, offering an eco-friendly approach to mitigating heavy metal and dye pollution while contributing to environmental sustainability.