【摘要】：以焦粉為碳源,混合酸(濃H_2SO_4和濃HNO_3)為氧化劑,采用水熱法制備熒光碳量子點。利用UVVis、FTIR、TEM、XRD等對其進行表征,并分析碳量子點的合成條件對碳量子點的結(jié)構(gòu)和性能的影響。結(jié)果表明,合成條件對碳量子點性能的影響由主到次的順序為:混合酸體積反應(yīng)溫度pH值反應(yīng)時間;合成該碳量子點的最佳條件為:反應(yīng)溫度為95℃、混合酸體積為12mL、反應(yīng)時間為9h及pH值為9,所制熒光納米碳量子點的粒徑較小且分布均勻,具有良好的水溶性。
[Abstract]:Fluorescent carbon quantum dots were prepared by hydrothermal method using coke powder as carbon source and mixed acid (concentrated H_2SO_4 and concentrated HNO_3) as oxidant. The structure and properties of carbon quantum dots (QDs) were characterized by UVVis,FTIR,TEM,XRD and the effects of synthesis conditions on the structure and properties of QDs were analyzed. The results show that the influence of synthesis conditions on the properties of carbon quantum dots is in the order of mixed acid volume reaction temperature pH, and the optimum conditions for synthesis of carbon quantum dots are as follows: reaction temperature 95 鈩，

本文編號：2283869