ZnO量子点-氧化石墨烯-石墨相氮化碳纳米复合材料的荧光特性
Fluorescence Properties of ZnOQDs-GO-g-CN Nanocomposites.
作者信息
Liu Tianze, Wang Lei, Jiang Ruxue, Tang Yashi, He Yuxin, Sun Changze, Lv Yuguang, Liu Shuang
机构信息
College of Clinical Medicine, Jiamusi University, Jiamusi 154007, China.
College of Pharmacy, Jiamusi University, Jiamusi 154007, China.
出版信息
Micromachines (Basel). 2023 Mar 23;14(4):711. doi: 10.3390/mi14040711.
In this paper, the fluorescence properties of ZnOQD-GO-g-CN composite materials (ZCGQDs) were studied. Firstly, the addition of a silane coupling agent (APTES) in the synthesis process was explored, and it was found that the addition of 0.04 g·mL APTES had the largest relative fluorescence intensity and the highest quenching efficiency. The selectivity of ZCGQDs for metal ions was also investigated, and it was found that ZCGQDs showed good selectivity for Cu. ZCGQDs were optimally mixed with Cu for 15 min. ZCGQDs also had good anti-interference capability toward Cu. There was a linear relationship between the concentration of Cu and the fluorescence intensity of ZCGQDs in the range of 1~100 µM. The regression equation was found to be F/F = 0.9687 + 0.12343C. The detection limit of Cu was about 1.74 μM. The quenching mechanism was also analyzed.
本文研究了ZnOQD-GO-g-CN复合材料（ZCGQDs）的荧光性能。首先，探索了在合成过程中添加硅烷偶联剂（APTES）的情况，发现添加0.04 g·mL的APTES时相对荧光强度最大且猝灭效率最高。还研究了ZCGQDs对金属离子的选择性，发现ZCGQDs对Cu表现出良好的选择性。ZCGQDs与Cu最佳混合时间为15分钟。ZCGQDs对Cu也具有良好的抗干扰能力。在1~100 μM范围内，Cu的浓度与ZCGQDs的荧光强度之间存在线性关系。回归方程为F/F = 0.9687 + 0.12343C。Cu的检测限约为1.74 μM。同时分析了猝灭机理。
Zotero 插件