Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC; Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei, Taiwan, ROC; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
Ecotoxicol Environ Saf. 2021 Sep 1;220:112373. doi: 10.1016/j.ecoenv.2021.112373. Epub 2021 May 28.
The electronic conductivity of the metal oxides is generally increased by hybridization of highly conductive carbon supportive materials. In this present work, we have demonstrated a novel one-pot preparation of cerium niobate (CeNbO) nanoparticles embedded with graphene oxide (GO/CeNbO) composite, for ultrasensitive detection of the photographic developing agent, metol (MTL). The as-prepared GO/CeNbO was analyzed by various characterization techniques. The intensive characterization techniques were used to affirm the detailed structural moiety, size, morphology, and surface area of GO/CeNbO The GO/CeNbO modified glassy carbon electrode (GCE) affords a superior electrocatalytic activity toward MTL. The obtained amperometric response on the GO/CeNbO/GCE holding an extremely low level detection of 10 nM and superior sensitivity of 10.97 µA µM cm toward MTL detection. Besides, the GO/CeNbO/GCE also gives excellent selectivity, stability, repeatability, and reproducibility. We achieved excellent recovery results in real photographic solution and river water samples analysis with great accuracy. This work offers a novel insight into the growth of the carbon-based niobate family with electrochemical sensor applications.
金属氧化物的电子电导率通常通过与高导电性的碳支持材料的杂化来提高。在本工作中，我们展示了一种新颖的一锅法制备铈铌酸盐（CeNbO）纳米粒子嵌入氧化石墨烯（GO/CeNbO）复合材料，用于超灵敏检测照相显影剂甲氨基酚（MTL）。所制备的 GO/CeNbO 采用各种表征技术进行分析。采用强烈的表征技术来确认 GO/CeNbO 的详细结构部分、尺寸、形态和表面积。GO/CeNbO 修饰的玻碳电极（GCE）对 MTL 表现出优异的电催化活性。在 GO/CeNbO/GCE 上获得的安培响应对 MTL 的检测具有极低的检测限 10 nM 和卓越的灵敏度 10.97 µA µM cm。此外，GO/CeNbO/GCE 还具有出色的选择性、稳定性、重复性和重现性。我们在实际照相溶液和河水样品分析中实现了出色的回收率，具有很高的准确性。这项工作为电化学传感器应用中碳基铌酸盐家族的生长提供了新的见解。
