基于四苯基乙烯的聚集诱导发光碳点制备及其对铁离子的荧光传感响应Aggregation-induced emission carbon dots from tetraphenylethylene and their fluorescent sensing for ferric ion
康思京,郑志刚,尹诗琪,王世敏,王二静
摘要(Abstract):
固态发光碳点已成为近年来光电领域的研究热点。我们以具有聚集诱导发光特性的四苯基乙烯为前驱体,溶剂热法制备了具有高固态发光效率的碳点TPE-CD。该类碳点继承了前驱体的聚集诱导发光特性。碳点表面丰富的电子基团结构使得碳点可与Fe(Ⅲ)选择性络合,碳点荧光随之被猝灭,响应快、选择性高。机理研究表明,内过滤效应在铁离子荧光传感中起着主要作用。该类探针因高稳定性和高选择性而具有良好的应用前景。
关键词(KeyWords): 碳点;聚集诱导发光;铁离子传感;内过滤效应
基金项目(Foundation): 国家自然科学基金(52073082);; “能源捕获和环境传感绿色技术”学科创新引智基地项目(D18025)资助
作者(Author): 康思京,郑志刚,尹诗琪,王世敏,王二静
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