Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan.
Department of Biotechnology, Kalasalingam Academy of Research and Education, Krishnankoil, 626126, Tamil Nadu, India.
Chemosphere. 2024 Sep;364:143188. doi: 10.1016/j.chemosphere.2024.143188. Epub 2024 Aug 24.
Water contamination is a serious environmental issue posing a significant global challenge. Roxarsone (ROX), a widely used anticoccidial drug is excreted in urine and feces, potentially disrupting natural habitats. Therefore, rapid and cost-effective ROX detection is essential. In this study, we developed a 2D sheet structure of zinc molybdate decorated on MXene (ZnMoO/MXene) for detecting ROX using electrochemical methods. The materials were characterized using appropriate spectrophotometric and voltammetric techniques. The ZnMoO/MXene hybrid exhibited excellent electrocatalytic performance due to its rapid electron transfer rate and higher electrical conductivity. The ZnMoO/MXene-modified GCE (ZnMoO/MXene/GCE) showed a broad linear range with high sensitivity (10.413 μA μМ cm) and appreciable limit of detection (LOD) as low as 0.0081 μM. It also demonstrated significant anti-interference capabilities, excellent storage stability, and remarkable reproducibility. Furthermore, the feasibility of utilizing ZnMoO/MXene/GCE for monitoring ROX in water samples was confirmed, achieving satisfactory recoveries.
水污染是一个严重的环境问题，对全球构成重大挑战。罗硝唑（ROX）是一种广泛使用的抗球虫药物，会通过尿液和粪便排出，可能会破坏自然栖息地。因此，快速且具有成本效益的 ROX 检测至关重要。在本研究中，我们使用电化学方法开发了一种二维锌钼酸盐修饰 MXene（ZnMoO/MXene）的片状结构来检测 ROX。使用适当的分光光度法和伏安法技术对材料进行了表征。由于具有快速的电子转移率和更高的电导率，ZnMoO/MXene 杂化物表现出优异的电催化性能。ZnMoO/MXene 修饰的 GCE（ZnMoO/MXene/GCE）具有较宽的线性范围和较高的灵敏度（10.413 μA μM cm），可检测到的下限（LOD）低至 0.0081 μM。它还表现出显著的抗干扰能力、优异的储存稳定性和良好的重现性。此外，还证实了利用 ZnMoO/MXene/GCE 监测水样中 ROX 的可行性，实现了令人满意的回收率。
