ADSORPTION OF Cu(II) IONS ON NEWLY PREPARED ACTIVATED CARBON FROM HAZELNUT SHELLS: TEXTURAL ANALYSIS AND EFFICIENCY EVALUATION
DOI:
https://doi.org/10.59957/jctm.v61.i4.2026.3Keywords:
activated carbon, hazelnut shells, chemical activation, adsorption, cuprum ions, water purificationAbstract
The present study aims to obtain and characterize activated carbon obtained from hazelnut shells and evaluate its adsorption capacity towards Cu2+ ions. The synthesis includes pyrolysis at 700оC and subsequent chemical activation with KOH (1:1 ratio) at 500оC. The obtained activated carbon (ACH) was characterized by elemental analysis, nitrogen adsorption (BET method), FT-IR spectroscopy and scanning electron microscopy (SEM). The results show the formation of carbon with a well-developed microporous structure and high specific surface area. The performed FT-IR analysis confirms the presence of oxygen-containing functional groups on the surface. Adsorption tests demonstrate high efficiency of ACH in removing Cu2+ ions from aqueous solutions. The obtained data prove that hazelnut shells are a suitable raw material to produce activated carbon, which appears as a promising and sustainable adsorbent
for water purification from heavy metals.
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