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<p>Activated carbon derived from human hair utilizing a specific activation reagent (K<sub>2</sub>CO<sub>3</sub>) was tested for its ability to adsorb the textile dyes reactive violet and bemacid yellow. The study explored the influence of contact time, initial adsorbate concentration, and pH. In addition to adsorption experiments, the activated carbon was characterized by Fourier-transform infrared spectroscopy (FTIR) to identify its surface functional groups, and its adsorption quality and performance were thoroughly evaluated. The results showed that this activated carbon is a promising material for removing both textile dyes from solution. Adsorption equilibrium was achieved after 1&#xa0;h, with capacities of 45.31% for reactive violet and 65.87% for bemacid yellow. The adsorption capacity increased with initial dye concentration, and the process was most efficient at pH 6 for both dyes on the activated carbon.</p>

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Kinetic study of removal of reactive violet and bemacid yellow from aqueous solution by adsorption onto activated carbon derived from human hair

  • 期刊论文

  • 发表日期：

    2025年5月26日

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  • Imane Lansari,
  • Khadidja Tizaoui,
  • Belkacem Benguella,
  • Fatima Zohra Bensaid,
  • Anfal Chekroun,
  • Natalia Kruchinina,
  • Alexey Nistratov

摘要

Activated carbon derived from human hair utilizing a specific activation reagent (K2CO3) was tested for its ability to adsorb the textile dyes reactive violet and bemacid yellow. The study explored the influence of contact time, initial adsorbate concentration, and pH. In addition to adsorption experiments, the activated carbon was characterized by Fourier-transform infrared spectroscopy (FTIR) to identify its surface functional groups, and its adsorption quality and performance were thoroughly evaluated. The results showed that this activated carbon is a promising material for removing both textile dyes from solution. Adsorption equilibrium was achieved after 1 h, with capacities of 45.31% for reactive violet and 65.87% for bemacid yellow. The adsorption capacity increased with initial dye concentration, and the process was most efficient at pH 6 for both dyes on the activated carbon.