Chemical Recycling of Expanded Polystyrene Waste : Synthesis of Novel Functional Polystyrene-Hydrazone Surface for Phenol Removal

Abstract EN

Expanded polystyrene (EPS) waste was chemically recycled to a novel functional polystyrene-hydrazone (PSH) surface by acetylation of polystyrene (PS) and then condensation with phenyl hydrazine.

The synthesized surface was characterized by the FT-IR and elemental analysis.

Synthesized novel functional PSH surface was successfully applied for the treatment of phenol-contaminated industrial wastewater by solid-phase extraction.

Multivariant sorption optimization was achieved by factorial design approach.

99.93% of phenol was removed from aqueous solution.

FT-IR study showed the involvement of nitrogen of hydrazone moiety of synthesized surface for the uptake of phenol through the hydrogen bonding.