Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, Hebei, China.
Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, Hebei, China.
Talanta. 2020 Mar 1;209:120431. doi: 10.1016/j.talanta.2019.120431. Epub 2019 Oct 19.
Reeds live widely in swamp and wetland and have an important ecological balance functions in environmental protection. However, the use of reeds is not effectively. The carbon dots (CDs) have been developed as the family of 0D nanocarbon materials and have all the advantages of the carbon family. In this work, we prepared CDs via hydrothermal method using reed. It is surprising that the reed-derived CDs are an effective reducing agent. A highly catalytically active composite material CDs-CuO/CuO was synthesized using economical, green, one-step ultrasonic method and used for the detection of hydrazine. The electrochemical detection of hydrazine was investigated by cyclic voltammetry. The result shows that the CDs-CuO/CuO exhibited good electrocatalytic activity for the oxidation of hydrazine. The fabricated sensor presented a wide linear range from 0.99 μM to 5903 μM and a detection limit of 0.024 μM. In addition, the CDs-CuO/CuO exhibited good sensitivity, stability and repeatability. Therefore, the CDs-CuO/CuO provides a new idea for the utilization of reed and low-cost electrocatalytic nanocomposite.
芦苇广泛分布于沼泽和湿地，在环境保护方面具有重要的生态平衡功能。然而，芦苇的利用并不有效。碳点（CDs）已发展成为零维纳米碳材料家族，具有碳家族的所有优势。在这项工作中，我们使用芦苇通过水热法制备了 CDs。令人惊讶的是，芦苇衍生的 CDs 是一种有效的还原剂。使用经济、绿色、一步超声法合成了具有高催化活性的复合材料 CDs-CuO/CuO，并用于检测肼。通过循环伏安法研究了肼的电化学检测。结果表明，CDs-CuO/CuO 对肼的氧化表现出良好的电催化活性。所制备的传感器在 0.99 μM 至 5903 μM 的宽线性范围内表现出良好的线性，检测限为 0.024 μM。此外，CDs-CuO/CuO 表现出良好的灵敏度、稳定性和重现性。因此，CDs-CuO/CuO 为芦苇的利用和低成本电催化纳米复合材料提供了新的思路。
