Preparation of hydrogen bond organic framework material and electrochemical sensor and detection of heavy metal cadmium

The invention relates to a hydrogen bond organic framework material, preparation of an electrochemical sensor and a detection method of heavy metal cadmium, and the prepared material is only composed of C, N and O and has a thin-layer sheet structure. HOF-DAT is integrated into a novel electrochemical sensor, and accurate detection of Cd < 2 + > in an actual sample is realized through square wave anodic stripping voltammetry. The sensor has a wide linear range, and the detection limit is as low as 0.13 [mu] g/L. An actual sample of the electronic cigarette is analyzed to simulate the working environment of the sensor. The result shows that the sensor realizes efficient and repeatable Cd < 2 + > detection. In addition, the material is not doped with metal elements, and compared with a conventional metal organic framework material, the risk of additional damage to the environment is greatly reduced, so that the material is a more sustainable substitute. Based on the excellent performance of the sensor in the as