Department of Chemistry, Dayananda Sagar College of Engineering, Bengaluru, 560078, India.
PG Department of Chemistry, JSS College of Arts Commerce & Science, Mysuru, 570025, India.
Sci Rep. 2024 Nov 2;14(1):26460. doi: 10.1038/s41598-024-77286-w.
The study of research proposes a systematic pattern for optimization and fabrication of a sustainable-cost effective electrochemical sensor made by Bi-CdFeO (BCDF) nanoparticle and graphite powder. The structural examinations of synthesized BCDF materials were analyzed by specific spectral techniques viz.; P-XRD, SEM-EDX, TEM, XPS, FT-IR and DRS techniques. The modified sensor electrode offer a significant electrochemical properties that can improve the material selectivity and sensitivity actions measured by Cyclic Voltammetric (CV) and Electrochemical Impedance Spectral (EIS) plots. We demonstrated a developed highly-purity BCDF-graphite paste electrode for sensing actions on Paracetamol and Lead (Pb) ions under 0.1 M KCl. The excellent sensing activity towards Lead ions and Paracetamol confirmed by its redox potential peaks at scan rate of 1-5 V/s with maximum sensitivity of -0.61 V and 0.69 V respectively. The excellent photo-dye-degradation action of BCDF (98.2%) than those of host CDF (81.6%) on Rose Bengal (RB) dye was demonstrated. Its kinetic study reveals that this process follows first order kinetics and rate constants of the host (18.1 × 10 min) and BCDF (39.2 × 10 min) were measured. Thus, the synthesized BCDF electrode provides a new perception for developing specific nano-sensor towards detection of toxic metals.
该研究提出了一种优化和制造可持续成本效益电化学传感器的系统模式,该传感器由 Bi-CdFeO (BCDF) 纳米粒子和石墨粉制成。通过特定的光谱技术,如 P-XRD、SEM-EDX、TEM、XPS、FT-IR 和 DRS 技术,对合成的 BCDF 材料的结构进行了分析。修饰后的传感器电极具有显著的电化学性能,可以通过循环伏安法 (CV) 和电化学阻抗谱 (EIS) 图谱来提高材料的选择性和灵敏度。我们展示了一种基于高度纯净的 BCDF-石墨糊电极,用于在 0.1 M KCl 下对扑热息痛和铅 (Pb) 离子进行传感。在 1-5 V/s 的扫描速率下,其氧化还原峰表现出对铅离子和扑热息痛的优异传感活性,最大灵敏度分别为-0.61 V 和 0.69 V。BCDF(98.2%)在 Rose Bengal(RB)染料上的光降解活性明显优于其母体 CDF(81.6%)。动力学研究表明,该过程遵循一级动力学,测量得到母体(18.1×10 min)和 BCDF(39.2×10 min)的速率常数。因此,合成的 BCDF 电极为开发针对有毒金属的特定纳米传感器提供了新的思路。