Synthesis of Fe(III)-IIPs (Ion Imprinted Polymers): Effect of 6M HCl Solvent on Extraction Variations in Cavity Formation of Fe(III)-IIPs
Eti Desti Sastia(a),(b)- Jorena(a),(b)- Octavianus(a)- Frinsyah Virgo(a)- Erry Koryanti(a)- Idha Royani (a*),(b)

(a) Departement of Physics, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Indralaya Ogan Ilir, Palembang, South Sumatera, 30662, Indonesia
*idharoyani[at]unsri.ac.id
(b) Laboratory of Material Science, Departement of Physics, Faculty Mathematic and Natural Sciences, University of Sriwijaya, South Sumatera, 30662, Indonesia

Abstract

The heavy metal iron (Fe) is a pollutant that pollutes the aquatic environment and hurts health. Research on Fe(III)-IIPs aims to create an adsorbent capable of absorbing Fe ions by imprinting ionic IIPs (Ion Imprinted Polymers) using the cooling-heating method. Polymerization involves Fe(NO3)3, methacrylic acid (MAA), ethylene glycol dimethacrylate (EGDMA), benzoyl peroxide (BPO), and chloroform as analytes, functional monomers, cross-linkers, initiators and solvents. Fe(III)-IIPs were extracted using 6M HCl to remove the template from the polymer body involving varying times (18 hours and 12 hours) and repetitions (7 times and 10 times). HCl as a porogen solvent is more effective at removing Fe metal ions in the extraction process than other similar acid solutions such as HNO3. Based on FTIR characterization testing, there was a 7% increase in transmittance percentage in Fe(III)-IIPs variation II. The test results of the best sample (Fe(III)-IIPs Variation II) were subjected to SEM characterization which produced 515 cavities <100 nm.

Keywords: Imprinted Polymer, Fe(III)-IIPs, Extraction, HCl 6M

Topic: Environmental Sciences