Electrochemical Detection of Atrazine by Platinum Nanoparticles/Carbon Nitride Nanotubes with Molecularly Imprinted Polymer

In this Article, a new electrochemical sensor based on molecular imprinting polymer (MIP) and platinum nanoparticles (Pt NPs)/carbon nitride nanotubes (C 3 N 4 NTs) nanocomposite was developed for atrazine (ATR) analysis. First, the structures of prepared nanocomposites and surfaces were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and energy dispersive X-ray analysis (EDX). After the characterization studies, ATR-imprinted glassy carbon electrode (GCE) based on Pt NPs/C 3 N 4 NTs nanocomposite was developed by 100 mM phenol containing 25 nM ATR. The linearity range and the detection limit of the molecular imprinted sensor were calculated as 1.0 × 10 –12 –1.0 × 10 –10 and 1.5 × 10 –13 M, respectively. In addition, the voltammetric sensor was applied to wastewater samples with high recovery.