Tailoring of ionic imprinted polymer-based polyeugenol as a selective adsorbent of Fe(III) ions

ABSTRACT

An imprinted polymer has been successfully synthesized using polyeugenol and polyethylene glycol dimethacrylate (PEGDMA) crosslinker for selective adsorption of Fe³⁺ ions. The synthesized imprinted polymer is milled to obtain a polymer with high adsorption performance. This work aims to determine the effect of milling on ionic imprinted polymer (IIP) and non-ionic imprinted polymer (NIP) as selective adsorbents of Fe³⁺ ion against competing metal ions. Adsorbent synthesis was carried out by adding polyeugenol with the crosslinking agent ethylene glycol dimethacrylate (EGDMA) in chloroform solvent and with the initiator 2,2’-Azobis(2-methyl propionitrile) (AIBN). IIP and NIP were used as adsorbents in the adsorption selectivity test of Fe³⁺ on the binary metals Fe³⁺/Cu²⁺, Fe³⁺/Zn²⁺, Fe³⁺/Ag⁺, and Fe³⁺/Cd²⁺. SEM (Scanning Electron Microscope) shows a more identical and smaller particle surface morphology in the milled IIP. Surface area analysis using the BET method (Brunauer-Emmett-Teller) showed an increase in the surface area of IIP after milling treatment. The adsorption capacity and selectivity of Fe³⁺ metal ions on milled IIP were greater than that of IIP. The selectivity of Fe³⁺ adsorption is greater in the binary metal ion mixture Fe³⁺/Cu²⁺ and Fe³⁺/Zn²⁺ than in the Fe³⁺/Cd²⁺ and Fe³⁺/Ag⁺ solutions.

KEYWORDS:

• Ionic imprinted polymer
• polyeugenol
• milling
• adsorption selectivity

Acknowledgments

We would like to express our gratitude to the DRPM DIKTI for supporting the funding of this research.

Disclosure Statement

No potential conflict of interest was reported by the author(s).

Credit Author Statement

Pardoyo: Conceptualization, Supervision, Resources, Investigation, Formal analysis, Funding acquisition, Writing-editing. Muhammad Khoirul Muaddib: Investigation, Methodology, Data curation, Formal analysis, Visualization, Writing – original draft. Muhammad Cholid Djunaidi: Conceptualization, Supervision, Resources, Investigation, Funding acquisition, Review-editing. Nesti Dwi Maharani: Formal analysis, Data curation, Visualization. Nabilah Anindita Febriola: Formal analysis, Data curation, Visualization. Hasan Muhtar: Formal analysis, Data curation, Visualization, Software, Writing-editing.