Sensitive analysis of simazine based on platinum nanoparticles on polyoxometalate/multi-walled carbon nanotubes

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• 作者：Bengü ; Ertan^a ; Tanju Eren^b ; İsmail Ermiş^c ; Hasan Saral^d ; Necip Atar^b ; ^{necipatar@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Mehmet Lü ; tfi Yola^d ; ^{mehmetyola@gmail.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Molecular imprinted sensor ; Simazine ; Platinum nanoparticles ; Polyoxometalate ; Multi-walled carbon nanotubes
• 刊名：Journal of Colloid and Interface Science
• 出版年：2016
• 出版时间：15 May 2016
• 年：2016
• 卷：470
• 期：Complete
• 页码：14-21
• 全文大小：2338 K

文摘

In this report, a novel molecular imprinted voltammetric sensor based on glassy carbon electrode (GCE) modified with platinum nanoparticles (PtNPs) involved in a polyoxometalate (H₃PW₁₂O₄₀, POM) functionalized multi-walled carbon nanotubes (MWCNs) sheets was prepared for the determination of simazine (SIM). The developed surfaces were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) method. SIM imprinted GCE was prepared via electropolymerization process of 100 mM pyrrole as monomer in the presence of 0.1 M acetate buffer (pH 4.0) containing 25 mM SIM. The linearity range and the detection limit of the developed method were calculated as 1.0 × 10⁻¹⁰–5.0 × 10⁻⁹ M and 2.0 × 10⁻¹¹ M, respectively. In addition, the voltammetric sensor was applied to wastewater samples. The stability and reproducibility of the voltammetric sensor were also reported.