量子点荧光印迹传感器的计算机模拟设计、制备及检测河水中4-硝基苯酚的应用

发布时间：2018-02-08 16:06

本文关键词： -硝基苯酚荧光探针分子印迹量子点计算机模拟　出处：《高等学校化学学报》2017年07期 　论文类型：期刊论文

【摘要】：将量子点的荧光特性、表面分子印迹技术与计算机模拟技术相结合,分别以碲化镉、4-硝基苯酚、3-氨丙基三乙氧基硅烷和正硅酸四乙酯作为量子点、模板分子、功能单体和交联剂,制得具有荧光特性的分子印迹聚合物.对其结构、形貌、荧光性能和选择性进行了表征,结果表明,该聚合物对4-硝基苯酚具有良好的选择性和灵敏度,线性范围为1.0~80 nmol/m L,检出限为0.05 nmol/m L.将制备的量子点荧光印迹聚合物作为传感器,应用于河水中4-硝基苯酚的测定,加标回收率为98.6%~101.2%,相对标准偏差最高为1.37%.
[Abstract]:The fluorescence properties of quantum dots, surface molecular imprinting techniques and computer simulation techniques were combined. Cadmium telluride 4-nitrophenol 3-aminopropyl triethoxysilane and tetraethyl orthosilicate were used as template molecules of quantum dots, respectively. Molecular imprinted polymers with fluorescence properties were prepared by functional monomers and crosslinkers. The structure, morphology, fluorescence properties and selectivity of the polymers were characterized. The results showed that the polymers had good selectivity and sensitivity to 4-nitrophenol. The linear range was 1.0 ~ 80 nmol/m / L and the detection limit was 0. 05 nmol/m / L. the fluorescence imprinted polymer was used as a sensor for the determination of 4-nitrophenol in river water. The recovery rate of 4-nitrophenol was 98.6% and the highest relative standard deviation was 1.37 g 路L ~ (-1) 路mol ~ (-1) 路L ~ (-1) 路L ~ (-1) 路L ~ (-1) 路L ~ (-1).
【作者单位】：江苏大学环境与安全工程学院;江苏大学材料科学与工程学院;吉林大学理论化学研究所理论化学计算实验室;
【基金】：国家自然科学基金(批准号:21677064) 江苏省自然科学基金(批准号:BK20151323,BK20151337) 中国博士后科学基金(批准号:2015T80515,2014M560405)资助~~
【分类号】：O657.3;X832

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