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<p>This study addresses the biosorption ability of cocoons obtained from the spider species <i>Argiope bruennichi</i>. The cocoons were characterized via SEM, EDX and mapping techniques. The bioadsorption ability of the cocoons was tested on aqueous metal ions (Cu(II), Co(II), Cd(II), Pb(II), Ni(II) and Cr(III)) via the solid-phase extraction batch technique. The parameters, solution pH, equilibrium time, bioadsorbent amount, sample volume and effect of interfering ions were optimized in model solutions. The metal ion concentrations were determined via a flame atomic absorption spectrometer. The results revealed that Pb(II) and Cr(III) ions were quantitatively (&lt; 95%) removed from aqueous media at pH 7, whereas the removal rates of Cu(II), Cd(II) and Co(II) ions were between 85 and 91%. SEM and EDX mapping results confirmed that the surface of <i>A. bruennichi</i> cocoons allows nearly nanoscale adsorption of metal ions and that the adsorption of the metal ions is homogeneous on the bioadsorbent surface.</p>

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Investigation of the multimetal biosorption ability of cocoons obtained from Argiope bruennichi spiders

  • 期刊论文

  • 发表日期：

    2026年1月28日

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  • Büşra Düzgün,
  • Osman Seyyar,
  • Yavuz Sürme

摘要

This study addresses the biosorption ability of cocoons obtained from the spider species Argiope bruennichi. The cocoons were characterized via SEM, EDX and mapping techniques. The bioadsorption ability of the cocoons was tested on aqueous metal ions (Cu(II), Co(II), Cd(II), Pb(II), Ni(II) and Cr(III)) via the solid-phase extraction batch technique. The parameters, solution pH, equilibrium time, bioadsorbent amount, sample volume and effect of interfering ions were optimized in model solutions. The metal ion concentrations were determined via a flame atomic absorption spectrometer. The results revealed that Pb(II) and Cr(III) ions were quantitatively (< 95%) removed from aqueous media at pH 7, whereas the removal rates of Cu(II), Cd(II) and Co(II) ions were between 85 and 91%. SEM and EDX mapping results confirmed that the surface of A. bruennichi cocoons allows nearly nanoscale adsorption of metal ions and that the adsorption of the metal ions is homogeneous on the bioadsorbent surface.