新型碳量子点的制备及其性能研究

Preparation and Properties of Novel Carbon Quantum Dots

以明胶为碳源,以乙二胺为氮源,通过高温反应釜等设备,采用一种简单的水热法,在120℃下反应12 h,冷却至室温合成了一种新型的碳量子点,并使用近红外光谱仪、粉末X-射线衍射仪、荧光摄谱仪、透射电子显微镜、暗箱式三用紫外检测仪等对其结构进行了表征,建立碳点对重金属离子的识别机理,将结构表征和分析检测结果相结合,建立碳量子点识别重金属离子的构效关系。

In this study,using gelatin as carbon source and ethylenediamine as nitrogen source,type of carbon quantum dots was synthesized by a simple hydrothermal method at 120℃for 12 h at room temperature.The structure of carbon quantum dots was characterized by near infrared spectrometer,powder X-ray diffractometer,fluorescence spectrograph,transmission electron microscope,dark box ultraviolet detector and so on.The recognition mechanism of carbon dots for heavy metal ions was established,and the structure characterization and analysis results were combined to establish the structureactivity relationship of carbon quantum dots for the identification of heavy metal ions.