Abstract Graphdiyne (GDY) is a new two-dimensional carbon nanomaterial with rich carbon chemical bonds, large conjugation system, porous structure and excellent chemical catalytic properties. In this work, graphdiyne oxide (GDYO), the oxidized form of GDY, was first used to establish a new platform for the simultaneously detection of hydroquinone (HQ), catechol (CC), resorcinol (RC) and p-nitrophenol (p-NP). The microstructure and morphologies of the materials and the surface of the modified electrode were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The electrocatalytic properties of graphene oxide (GO), GDY and GDYO for CC, HQ, RC and p-NP were investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results show that the GDYO modified glassy carbon electrode (GDYO/GCE) exhibited excellent catalytic activities towards CC, HQ, RC and p-NP. The linear ranges of HQ, CC, RC and p-NP were 1 μM–980 μM, 0.6 μM–692 μM, 1 μM–300 μM and 0.6 μM–203 μM, 203 μM–692 μM with 0.3 μM, 0.2 μM, 0.3 μM and 0.2 μM, respectively. In addition, the electrochemical sensor showed good selectivity, sensitivity and stability. The application in real samples was also evaluated, and the recoveries suggesting that it could be used as an excellent potential material for the simultaneous determination of phenolic compounds in environmental samples.

中文翻译：

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氧化石墨炔作为新型改性剂用于酚类化合物的同步电化学检测

摘要 石墨炔（GDY）是一种新型的二维碳纳米材料，具有丰富的碳化学键、大的共轭体系、多孔结构和优异的化学催化性能。在这项工作中，氧化石墨炔 (GDYO)，GDY 的氧化形式，首先被用来建立一个新平台，用于同时检测对苯二酚 (HQ)、邻苯二酚 (CC)、间苯二酚 (RC) 和对硝基苯酚 (p- NP）。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）和X射线光电子能谱（XPS）对材料和修饰电极表面的微观结构和形貌进行了表征。通过循环伏安法 (CV) 和差分脉冲伏安法 (DPV) 研究了氧化石墨烯 (GO)、GDY 和 GDYO 对 CC、HQ、RC 和 p-NP 的电催化性能。结果表明GDYO修饰的玻碳电极（GDYO/GCE）对CC、HQ、RC和p-NP表现出优异的催化活性。HQ、CC、RC 和 p-NP 的线性范围为 1 μM–980 μM、0.6 μM–692 μM、1 μM–300 μM 和 0.6 μM–203 μM、203 μM–692 μM，其中 0.3 μM、0.2 μM、分别为 0.3 μM 和 0.2 μM。此外，电化学传感器表现出良好的选择性、灵敏度和稳定性。还评估了在实际样品中的应用，回收率表明它可以用作同时测定环境样品中酚类化合物的极好潜在材料。203 μM–692 μM，分别为 0.3 μM、0.2 μM、0.3 μM 和 0.2 μM。此外，电化学传感器表现出良好的选择性、灵敏度和稳定性。还评估了在实际样品中的应用，回收率表明它可以用作同时测定环境样品中酚类化合物的极好潜在材料。203 μM–692 μM，分别为 0.3 μM、0.2 μM、0.3 μM 和 0.2 μM。此外，电化学传感器表现出良好的选择性、灵敏度和稳定性。还评估了在实际样品中的应用，回收率表明它可以用作同时测定环境样品中酚类化合物的极好潜在材料。