基于AIE+ESIPT原理的荧光纳米探针构建及其在环境水中硫化氢的检测研究  

Fluorescent Nanoprobe Based on AIE+ESIPT Characteristics for Detection of Hydrogen Sulfide in Environmental Water Samples

作　　者：田勇 潘赫汝 邹柔 张崇华 陈建[1] 张培盛[1] TIAN Yong;PAN He-ru;ZOU Rou;ZHANG Chong-hua;CHEN Jian;ZHANG Pei-sheng(College of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan,Hunan 411201)

机构地区：[1]湖南科技大学化学化工学院,理论有机化学与功能分子教育部重点实验室,湖南湘潭411201

出　　处：《胶体与聚合物》2022年第3期105-109,共5页Chinese Journal of Colloid & Polymer

基　　金：国家自然科学基金项目(52173278,51773056);湖南省自然科学基金项目(2020JJ3021,2021JJ10029)。

摘　　要：环境水中有机物厌氧腐烂产生的硫化氢(H_(2)S)是一种剧毒的气体,严重威胁人体健康。因此设计一种高效的用于检测环境水中H_(2)S的方法尤为重要。基于此,本文基于聚集诱导发光(AIE)和激发态分子内质子转移(ESIPT)原理,构建了一种“关-开”型的H_(2)S荧光纳米探针(NP-1)。实验结果表明,NP-1具有较好的水分散性、选择性好、检测限低(-38 nM)、线性范围广(0-40μM)等优点。此外,NP-1被成功应用于环境水中H_(2)S的荧光检测。Hydrogen sulfide(H_(2)S), which is produced from the anaerobic decay of organic matters in environmental water, is a highly toxic gas and seriously threatens human health. Therefore, it is particularly important to design an efficient method for detecting H_(2)S in environmental water. Here, an "off-on" fluorescent nanoprobe(NP-1) for H_(2)S detection was designed, based on the principles of aggregation-induced emission(AIE) and excited-state intramolecular proton transfer(ESIPT). The experimental results showed that NP-1 performed good water dispersibility, good selectivity, low detection limit(-38 nM), and wide linear range(0-40 μM). In addition, NP-1 was successfully applied to the detection of H_(2)S in environmental water samples.

关 键 词：荧光纳米探针 硫化氢 聚集诱导发光 激发态分子内质子转移 

分 类 号：TQ31[化学工程—高聚物工业] O63[理学—高分子化学]