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碳纳米探针来源于 Nyctanthes arbor-tristis 花:揭示了表面缺陷衍生的光

Pratibha Pansari¹, Geeta Durga¹, Roopali Sharma¹

¹Department of Chemistry and Biochemistry, School of Basic Sciences and Research, Sharda University, Greater Noida 201306, U.P., India.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|July 21, 2023

概括

研究人员从植物花中开发了双排放碳点 (C-Dots). 这些C-Dots作为敏感的光探测器来检测Fe3+离子,展示了纳米传感器应用的潜力.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
生物技术是生物技术.

背景情况:

碳点 (C-Dots) 是多功能纳米材料,具有可调节的光学特性.
从可持续的前体开发C-Dots对于绿色化学至关重要.
控制C点表面缺陷是实现所需排放特性的关键.

研究的目的:

使用 Nyctanthes arbortristis 花来合成双排放碳点 (g-CD 和 b-CD).
为了研究水热反应参数 (时间,温度) 对C点特性的影响.
评估合成的C点作为光探针用于Fe3+检测的潜力.

主要方法:

来自植物花朵的C点的热水合成.
使用HRTEM,XPS,FTIR,UV-Vis和光光谱学进行表征.
评估Fe3+离子的选择性和敏感检测.

主要成果:

在没有外部代理的情况下成功合成了双发射绿色和蓝色C点 (g-CD,b-CD).
对于两个C-Dot.来说,证明了依赖激发的辐射与色转移.
实现了Fe³⁺的选择性和敏感检测,检测极限较低 (g-CD为0.06μM,b-CD为0.70μM).

结论:

Nyctanthes arbortristis的花朵是双发射C点的可行前体.
水热合成条件有效调节C点表面缺陷和光学特性.
开发的C-Dots显示了作为高效光纳米探测器的承诺,用于Fe3+检测和纳米传感应用.

关键词:

碳点是一些碳点.光是一种光效应.尼克坦斯 (Nyctanthes arbortristis) 是一种树木花.表面缺陷表面缺陷表面缺陷

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