脯氨酸保护的铜纳米团簇的制备及其在三硝基苯酚检测中的应用

引用本文: 蔡志锋, 武亮亮, 戚凯飞, 邓晨华, 张申, 张彩凤. 脯氨酸保护的铜纳米团簇的制备及其在三硝基苯酚检测中的应用[J]. 应用化学, 2021, 38(1): 107-115. doi: 10.19894/j.issn.1000-0518.200187 shu

Citation: CAI Zhi-Feng, WU Liang-Liang, QI Kai-Fei, DENG Chen-Hua, ZHANG Shen, ZHANG Cai-Feng. Synthesis of Proline-Stabilized Cu Nanoclusters for Detection of Picric Acid[J]. Chinese Journal of Applied Chemistry, 2021, 38(1): 107-115. doi: 10.19894/j.issn.1000-0518.200187 shu

脯氨酸保护的铜纳米团簇的制备及其在三硝基苯酚检测中的应用

蔡志锋 ^1, ,
武亮亮 ^1, ,
戚凯飞 ^1, ,
邓晨华 ^1, ,
张申 ^{1,
,} ,
张彩凤 ^1,2,

1.
太原师范学院化学系, 晋中 030619;
2.
太原师范学院化学系, 山西省腐植酸工程技术研究中心, 晋中 030619

通讯作者: 张申,E-mail:zhangs@tynu.edu.cn

基金项目:
山西省应用基础研究基金面上自然基金项目（No.201801D121257）、山西省高等学校科技创新项目（No.2020L0499）、太原师范学院校级大学生创新创业训练项目（No.CXCY2004）和山西省高等学校大学生创新创业训练计划项目（No.2020486）资助

摘要: 以脯氨酸（Pro）为保护剂，盐酸羟胺为还原剂，通过一步化学还原法制备脯氨酸稳定的铜纳米团簇（Cu NCs）。采用分子荧光仪和紫外可见吸收仪对Cu NCs的光学性质进行分析，通过透射电子显微镜（TEM）、X射线光电子能谱（XPS）和傅里叶变换红外波谱仪（FTIR）对Cu NCs的结构进行表征。TEM图像显示Cu NCs的形貌为球状，平均直径为1.89 nm。Cu NCs溶液在紫外光下呈蓝色，最大激发和发射波长分别为397和458 nm。Cu NCs的荧光可以选择性地被三硝基苯酚（PA）猝灭。该探针对PA的线性响应范围为0.5~15 μmol/L和20~70 μmol/L，检测限为0.092 μmol/L （S/N=3）。可能的检测机理是静态猝灭和内滤效应。此外，该荧光探针已成功应用于实际水样品中PA的测定。

关键词:

English

Synthesis of Proline-Stabilized Cu Nanoclusters for Detection of Picric Acid

1.
Department of Chemistry, Taiyuan Normal University, Jinzhong 030619, China;
2.
Humic Acid Engineering and Technology Research Center of Shanxi Province, Taiyuan Normal University, Jinzhong 030619, China

Corresponding author: ZHANG Shen, zhangs@tynu.edu.cn

Received Date: 17 June 2020
Fund Project:
Supported by Shanxi Provincial Applied Fundamental Research Fund Project (No.201801D121257), the Science and Technology Innovation Project of Shanxi Province (No.2020L0499), the College Students' Innovation Program of Taiyuan Normal University (No.CXCY2004) and the Innovation and Entrepreneurship Training Project for College Students in Shanxi Province (No.2020486)

Abstract: In this work, we reported one-pot chemical reduction method for the synthesis of proline-stabilized copper nanoclusters (Cu NCs), in which proline as the capping agent and hydroxylamine hydrochloride as the reducing agent. The optical properties of Cu NCs was measured by fluorescence spectroscopy and ultraviolet(UV)-visible absorption spectroscopy. The structure of Cu NCs was characterized using transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). The TEM image shows that the Cu NCs are highly dispersed and spherical in shape with a size of around 1.89 nm. The Cu NCs exhibit brown and blue fluorescence under sunlight and UV light irradiation, respectively. The Cu NCs solution shows the maximum emission peak at 458 nm under the excitation wavelength of 397 nm. Their fluorescence is selectively and sensitively quenched by picric acid. Under optimized conditions, the assay displays a linear response in the 0.5 to 15 μmol/L and 20 to 70 μmol/L picric acid (PA) concentration range, with a detection limit of 0.092 μmol/L based on an S/N ratio of 3. The possible mechanism is static quenching and the inner filter effect. In addition, the fluorescent probe has been successfully applied to the determination of PA in real water samples.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

脯氨酸保护的铜纳米团簇的制备及其在三硝基苯酚检测中的应用

通讯作者: 张申,E-mail:zhangs@tynu.edu.cn

English

Synthesis of Proline-Stabilized Cu Nanoclusters for Detection of Picric Acid

Corresponding author: ZHANG Shen, zhangs@tynu.edu.cn

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

脯氨酸保护的铜纳米团簇的制备及其在三硝基苯酚检测中的应用

通讯作者: 张申,E-mail:zhangs@tynu.edu.cn

English

Synthesis of Proline-Stabilized Cu Nanoclusters for Detection of Picric Acid

Corresponding author: ZHANG Shen, zhangs@tynu.edu.cn

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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