Carbon dots electrochemically prepared from dopamine and epigallocatechin gallate for hypochlorite detection with high selectivity via a dynamic quenching mechanism

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期刊论文

作者：

Long, Tiantian;Hu, Zhongyang;Gao, Ziyun;Luo, Hongmei;Li, Hongchen;...

通讯作者：

Liu, L;Xu, D

作者机构：

[Li, Hongchen; Luo, Hongmei; Liu, Lei; Long, Tiantian] Cent South Univ, Xiangya Hosp 3, Hlth Management Dept, Changsha 410013, Peoples R China.

[Xu, D; Xu, Dong; Long, Tiantian] Cent South Univ Forestry & Technol, Coll Food Sci & Engn, Natl Engn Lab Rice & By Prod Further Proc, Changsha 410004, Peoples R China.

[Long, Tiantian] Xinjiang Inst Technol, Coll Food Sci & Engn, Aksu 843100, Peoples R China.

[Hu, Zhongyang] Cent South Univ, Xiangya Hosp 3, Neurol Dept, Changsha 410013, Peoples R China.

[Gao, Ziyun] Nanchang Univ, Dept Neurosurg, Affiliated Hosp 2, Nanchang 330006, Peoples R China.

通讯机构：

[Xu, D ; Liu, L ] C

Cent South Univ, Xiangya Hosp 3, Hlth Management Dept, Changsha 410013, Peoples R China.

Cent South Univ Forestry & Technol, Coll Food Sci & Engn, Natl Engn Lab Rice & By Prod Further Proc, Changsha 410004, Peoples R China.

语种：

英文

关键词：

Carbon dots;Dynamic quenching;Electrochemical method;Fluorescence;Hypochlorite

期刊：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

ISSN：

1386-1425

年：

2023

卷：

301

页码：

122947

DOI：

10.1016/j.saa.2023.122947

基金类别：

Acknowledgement This work was supported by funding from the National Natural Science Foundation of China (21505162, 31571874), Hunan Provincial Key Laboratory of Food Safety Monitoring, Early Warning (2020KFJJ02), Natural Science Foundation of Hunan Province, China (2020RC3042, 2022SK2102), the Grain-Oil Process and Quality Control 2011 Collaborative and Innovative Grant from Hunan province, and Training Program for Excellent Young Innovators of Changsha (kq2009060).

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本校为通讯机构

院系归属：

食品科学与工程学院

摘要：

Monitoring hypochlorite levels in water is of great importance because of its high toxicity and wide applications as water disinfectants. In this manuscript, carbon dot (CD) was electrochemically prepared by using dopamine and epigallocatechin gallate (molar ratio 1:1) as the carbon source for efficient hypochlorite determination. By electrolyzing the solution at 10V for 12min with PBS as an electrolyte, dopamine would react with epigallocatechin at the anode, and through polymerization, dehydration, and carbonization, strong blue-fluorescent C...

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Carbon dots electrochemically prepared from dopamine and epigallocatechin gallate for hypochlorite detection with high selectivity via a dynamic quenching mechanism

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