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基于光的双重检测甲和Pb2+使用/联合的碳量子点

S Viji¹, Srimathi Priya L², A Dinesh³

¹Department of Chemistry, Dr Ambedkar Govt. Arts College (Autonomous), Affiliated to the University of Madras Vyasarpadi Chennai - 600 039 Tamil Nadu India puppyviji82@gmail.com ramuvec@gmail.com.

|November 7, 2025

概括

一种新型的/联合化碳量子点传感器可以连续检测甲 (CTC) 和离子 (Pb2+). 这种双模式传感器为环境和食品安全监测提供了可逆的"开启-关闭"机制.

科学领域:

材料科学材料科学材料科学
分析化学分析化学
环境科学环境科学

背景情况:

开发有选择性和敏感的传感器对于检测食品和水中的污染物至关重要.
碳量子点 (CQD) 为传感应用提供独特的光学特性.
现有的检测四环素 (CTC) 和离子 (Pb2+) 的方法可能缺乏选择性或需要复杂的程序.

研究的目的:

为了合成/联合化碳量子点 (N/P-CQDs),用于双模式传感.
开发一种对CTC和Pb2+离子的顺序和选择性检测方法.
为了评估传感器在环境和食品安全应用中的真实世界样本中的性能.

主要方法:

绿色水热合成N/P-CQDs使用石榴皮汁.
光火和回收机制用于CTC和Pb2+的顺序检测.
优化传感器参数 (pH,离子强度,温度) 和使用真实样本进行验证.

主要成果:

N/P-CQDs表现出蓝色辐射,适用于光传感.
在CTC和Pb2+检测中观察到可逆的"开启-关闭"光反应.
传感器显示出高灵敏度 (CTC的LOD为30nM,Pb2+的LOD为18μM),选择性和稳定性.
在番茄,牛奶和河水样本中成功回收率 (92-98%).

结论:

该N/P-CQD传感器提供了一个新的,绿色和有效的平台,用于连续检测CTC和Pb2+.
开发的传感器适用于监测环境和食品安全.
这项研究强调了可持续材料在先进分析应用中的潜力.

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