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<p>The adsorption of two relevant antibiotics, namely tetracycline (TTC) and vancomycin (VC), on activated carbon F400 was analyzed in both single and binary systems. The single experimental adsorption capacities ranged from 161 to 179&#xa0;mg/g for TTC and from 163 to 221&#xa0;mg/g for VC at pH 6.9 and 30–50&#xa0;°C, while they ranged from 157 to 161&#xa0;mg/g and 163 to 209&#xa0;mg/g for the same compounds in binary solutions. The removal of both pollutants was exothermic, and antagonistic adsorption was observed in the binary solutions with a reduction of 6% and 3% for the adsorption capacities of TTC and VC, respectively. VC significantly affected the removal of TTC in binary solutions. Statistical physics adsorption models were applied to characterize the steric and energy parameters associated with the adsorption mechanisms of both antibiotics. The modeling results suggested the presence of physisorption interactions and multimolecular adsorption specially for binary systems. This manuscript reports new results for understanding the performance of activated carbon to remove emerging organic pollutants from water.</p>

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A novel application of activated carbon for pharmaceuticals removal: new insights via experiments and modelling

  • 期刊论文

  • 发表日期：

    2026年3月7日

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  • R. Ghorbali,
  • L. Sellaoui,
  • F. E. Soetaredjo,
  • H. Ghalla,
  • F. Bessaha,
  • A. Bonilla-Petriciolet,
  • A. B. Lamine,
  • S. Ismadji

摘要

The adsorption of two relevant antibiotics, namely tetracycline (TTC) and vancomycin (VC), on activated carbon F400 was analyzed in both single and binary systems. The single experimental adsorption capacities ranged from 161 to 179 mg/g for TTC and from 163 to 221 mg/g for VC at pH 6.9 and 30–50 °C, while they ranged from 157 to 161 mg/g and 163 to 209 mg/g for the same compounds in binary solutions. The removal of both pollutants was exothermic, and antagonistic adsorption was observed in the binary solutions with a reduction of 6% and 3% for the adsorption capacities of TTC and VC, respectively. VC significantly affected the removal of TTC in binary solutions. Statistical physics adsorption models were applied to characterize the steric and energy parameters associated with the adsorption mechanisms of both antibiotics. The modeling results suggested the presence of physisorption interactions and multimolecular adsorption specially for binary systems. This manuscript reports new results for understanding the performance of activated carbon to remove emerging organic pollutants from water.