Synthesis of Graphite‐Based Ion‐Imprinted Polymer for the Selective Removal of Nitrate Ions

Abstract

A graphite‐based ion‐imprinted polymer (G‐IIP) was synthesized using the surface‐printing technique. Allylthiourea was used as the functional monomer, nitrate as the template, and ethylene glycol dimethacrylate as a crosslinker. The polymers were characterized, and the adsorption capacity was tested. The binding ability of G‐IIP was nearly twice higher than that of the graphite‐non‐imprinted polymer (G‐NIP). The adsorption of G‐IIP followed the Freundlich isotherm and the pseudo‐second‐order kinetic. G‐IIP showed good removal efficiency of nitrate ions in actual wastewater samples with 85 % recovery. Overall, the fabricated G‐IIP would be a potential adsorbent for wastewater treatment.

Nanomaterials-Based Ion-Imprinted Electrochemical Sensors for Heavy Metal Ions Detection: A Review

“…In recent years, the surface imprinting method has been used as an alternative to other types of polymerization become a highly using IIPs preparation technique [ 48 ]. Ismail et al synthesized a graphite-based IIP (G-IIP) which exhibits a potential adsorbent for wastewater treatment by using the surface-printing technique with allylthiourea as the functional monomer, nitrate as the template, and EGDMA as the crosslinker [ 49 ]. Fayazi et al utilized novel magnetic Pb(II) ion-imprinted polymer (Pb(II)-MIIP) nanoparticles (NPs) synthesized by the surface imprinting technique with 4-VP (functional monomer), EGDMA (crosslinker), 2,3,5,6-tetra(2-pyridyl) pyrazine (TPPZ, chelating agent), and magnetic multi-walled carbon nanotubes (MMWCNTs, carrier) for the sensitive and selective detection of Pb(II) ions [ 50 ].…”