阿洛韦拉衍生碳点作为多功能光探针,用于温度,pH值和铁离子传感
A Rezk1,2, M K Elnimr3, A S Atlam3
1Physics Department, Faculty of Science, Tanta University, Tanta, Egypt. Abdallah.rezk@ejust.edu.eg.
Scientific reports
|January 20, 2026
概括
这项研究介绍了来自的环保碳点 (CD),用于传感应用. 优化合成产生高光CD,对温度,pH和Fe3+离子检测有效,检测极限较低.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 分析化学 分析化学
背景情况:
- 碳点 (CD) 是具有独特光学特性的纳米材料,吸引了传感器的兴趣.
- 开发使用天然前体的CD的可持续合成方法对于环境和经济效益至关重要.
研究的目的:
- 通过绿色热水方法从凝中合成碳点 (CD).
- 为了优化合成参数 (温度,持续时间) 以提高光发光量子产量 (PLQY).
- 为了评估合成的CD作为温度,pH和Fe3+离子传感的探针.
主要方法:
- 一步式水热合成CD从叶凝.
- 反应温度 (180-240°C) 和持续时间 (4-16h) 的系统变化.
- 使用UV-Vis,光发光谱学,XRD,TEM和FTIR进行表征.
- 评估PLQY,热响应,pH感应和Fe3+离子检测.
主要成果:
- 在240°C进行12小时的优化合成,产生了具有高PLQY的CD.
- 这些CD显示出敏感的粉状温度传感 (298-393K).
- 实现了广泛范围 (pH 3-12) 的有效pH传感和选择性Fe3+检测 (LOD 16.15 nM).
结论:
- 草衍生CD为各种传感应用提供了可持续和高效的平台.
- 优化的热水合成为高性能光探头提供了一个可扩展的路线.
- 这些CD代表了开发用于环境和生物监测的敏感和选择性传感器的有希望的进步.
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