一种基于素/rGO/CuO复合物的新型敏感电极,用于检测尿素度
Irwana Nainggolan1,2,3, Ardiansyah Sembiring1,2,3, Tulus Ikhsan Nasution3,4
1Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Sumatera Utara Medan 20155 Indonesia irwana@usu.ac.id.
RSC advances
|September 2, 2025
概括
为敏感的尿素检测开发了一种新型的素/减少的氧化石烯/氧化铜电极. 这种修改的印电极在分析尿素肥料度方面表现出卓越的电化学性能.
科学领域:
- 电化学
- 材料科学
- 分析化学
背景情况:
- 检测尿素对于农业应用和环境监测至关重要.
- 开发灵敏可靠的电化学传感器是一个正在进行的研究领域.
- 基托桑,减少的氧化石墨烯和氧化铜为电化学传感提供了独特的特性.
研究的目的:
- 开发一种新型的基托桑/减少氧化石烯/氧化铜 (CS/rGO/CuO) 改性丝印电极 (SPE).
- 为检测尿素的CS/rGO/CuO改性SPE进行电化学性能研究.
- 评估尿素分析的灵敏度,检测限度和量化限度.
主要方法:
- 在印电极上放置CS/rGO/CuO复合膜.
- 使用富里埃变换红外光谱 (FTIR),X射线衍射 (XRD) 和场发射扫描电子显微镜 (FE-SEM) 的表征.
- 使用循环电量计 (CV) 进行尿素度的电化学分析.
主要成果:
- FTIR和XRD证实了rGO和CuO在CS矩阵中的成功分散.
- 由于物理相互作用,FE-SEM显示了轻微的聚合.
- 与CS/rGO/CuO修改的SPE相比,该SPE具有更好的电化学性能.
- 获得了1.93 × 10−3 μA μM−1 cm−2的灵敏度和0. 9599的R2值.
- 传感器显示尿素的检测极限为0.14μM,量化极限为0.49μM.
结论:
- 修改后的CS/rGO/CuO是敏感尿素检测的一个有前途的平台.
- 添加CuO显著提高了修改过的电极的传感性能.
- 这种新型传感器可以准确监测尿素度.
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