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为了应对日益严重的重金属污染问题,该研究旨在开发一种环保、高效且成本低的电化学传感器。该实验利用废弃蓝靛果作为碳源和氮源,掺杂硼元素成功制备出具有介孔结构的硼掺杂的生物炭,并将其修饰在玻碳电极上,利用电化学方法 检测水体中Pb2+浓度。实验结果表明:检测Pb2+的最佳条件是pH值为5,沉积电压为-1.8V,富集时间为260s,扫描速率为0.15V/s,Pb2+浓度为0.10mmol/L。该传感器具有操作简单、稳定性好和检测快速等优点,在为Pb2+的检测提供良好技术参考的同时,还促进了农业废弃物的循环再利用,也为水体重金属离子的检测提供了新思路。
Abstract：In order to address the increasingly serious problem of heavy metal pollution, this study aims to develop an environmentally friendly, efficient, and low-cost electrochemical sensor.In this experiment, discarded blue honeysuckle (Lonicera caerulea) was used as a carbon and nitrogen source, and boron-doped biochar with a mesoporous structure was successfully prepared by doping the boron element.It was modified on a glassy carbon electrode and used to detect Pb2+ in water using electrochemical methods.The experimental results showed that the optimal conditions for detecting Pb2+ were a pH of 5, a sedimentation potential of -1.8V, an enrichment time of 260s, and scanning rate of 0.15V/s, and a Pb2+ concentration of 0.10mmol/L.The experimental results indicate that the sensor has the advantages of simple operation, good stability, and fast detection.While providing a good technical reference for the detection of Pb2+ , it also promotes the recycling of agricultural waste and provides new ideas for the detection of heavy metal ions in water bodies.
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基本信息:
DOI：10.13478/j.cnki.jasyu.2025.03.003
中图分类号:X83
引用信息:
[1]陈伽祺,林芳竹,孟龙月.蓝靛果生物炭电化学传感器的制备及其对Pb~(2+)的检测[J].延边大学农学学报,2025,47(03):18-23.DOI:10.13478/j.cnki.jasyu.2025.03.003.
基金信息:
大学生创新创业训练计划项目(2025YDCXCY157)