Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan.
Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan.
Chemosphere. 2022 Jul;299:134434. doi: 10.1016/j.chemosphere.2022.134434. Epub 2022 Mar 26.
The advancements in electrode materials with high efficiency has been prioritized to effectively monitor the presence of harmful pesticides concerning the environment. In such a way, we hydrothermally constructed a hybrid AgWO-rGO nanocomposites for the rapid electrochemical detection of crisquat (CQT). The structural, compositional, morphological and topographical characterization for AgWO-rGO nanocomposites is thoroughly performed to understand its electrocatalytic properties. The AgWO-rGO nanocomposites are used as an electrode enhancer (rGO@AgWO/GCE) for the electrochemical investigations towards CQT detection. The results indicated that the rGO@AgWO/GCE possessed an excellent catalytic activity with a wide linear detection range 1-1108 μM coupled with an ultrasensitive limit of detection (LOD) 0.0661 μM for electrochemical CQT detection. The rGO@AgWO/GCE CQT sensor also expressed remarkable sensitivity of 0.6306 μAμMcm in addition to good selectivity and reproducibility. Furthermore, the commercial CQT, river water, tap water and washed vegetable water are used as a representative for real world analysis using rGO@AgWO/GCE and results are highly appreciable for the real time CQT detection. Our work proposes a novel hybrid rGO@AgWO nanocomposites reinforced electrodes for ultra-trace level CQT detection with good reliability and can be advocated for real time detection of pesticides.
已经优先考虑了高效电极材料的进步，以有效地监测环境中有害农药的存在。在这种情况下，我们通过水热法构建了一种用于快速电化学检测克百威（CQT）的 AgWO-rGO 纳米复合材料。对 AgWO-rGO 纳米复合材料进行了结构、组成、形态和形貌表征，以了解其电催化性能。AgWO-rGO 纳米复合材料被用作电极增强剂（rGO@AgWO/GCE），用于电化学研究以检测 CQT。结果表明，rGO@AgWO/GCE 具有出色的催化活性，线性检测范围为 1-1108 μM，检测限（LOD）低至 0.0661 μM。rGO@AgWO/GCE CQT 传感器还表现出 0.6306 μAμMcm 的高灵敏度，此外还具有良好的选择性和重现性。此外，使用 rGO@AgWO/GCE 对商业 CQT、河水、自来水和清洗过的蔬菜水进行了代表实际情况的分析，结果非常令人满意，可用于实时 CQT 检测。我们的工作提出了一种新型的 rGO@AgWO 纳米复合材料增强电极，用于超痕量 CQT 检测，具有良好的可靠性，可用于实时检测农药。
