Highly luminescence manganese doped carbon dots

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英文篇名：Highly luminescence manganese doped carbon dots 作者：Shuangjiao ; Sun ; Qingwen ; Guan ; Yao ; Liu ; Bin ; Wei ; Yuanyuan ; Yang ; Zhiqiang ; Yu 英文作者：Shuangjiao Sun;Qingwen Guan;Yao Liu;Bin Wei;Yuanyuan Yang;Zhiqiang Yu;School of Pharmaceutical Sciences, Shaoyang University;State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing;Research Institute for New Materials Technology, Chongqing University of Arts and Sciences;School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University; 英文关键词：Manganese-doped carbon dots;;Manganese;;Fluorescent sensors;;Quantum yield 中文刊名：FXKB 英文刊名：中国化学快报(英文版) 机构：School of Pharmaceutical Sciences, Shaoyang University;State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing;Research Institute for New Materials Technology, Chongqing University of Arts and Sciences;School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University; 出版日期：2019-05-15 出版单位：Chinese Chemical Letters 年：2019 期：v.30 基金：the financial support from the National Natural Science Foundation of China(No.81773642);; Hunan Provincial Natural Science Foundation(No.2018JJ2363);; Guangdong-Hong Kong Technology Cooperation Fund(No.2017A050506016);; the Research Program of Yongchuan Science and Technology Commission(Ycstc,No.2018nb1402);; Military Youth Innovation Training Program(No.16QNP145);; Translational Medicine Program(No.GHPLA 2016TM-019)for the support 语种：英文; 页：FXKB201905027 页数：4 CN：05 ISSN：11-2710/O6 分类号：131-134

摘要

Heteroatom doped carbon dots(CDs) with distinct merits are of great attractions in various fields such as solar cells, catalysis, trace element detection and photothermal therapy. In this work, we successfully synthesized blue-fluorescence and photostability manganese-doped carbon dots(Mn-CDs) with a quantum yield up to 7.5%, which was prepared by a facile one-step hydrothermal method with sodium citrate and manganese chloride. The Mn-CDs is the high mono-dispersity, uniform spherical nanoparticles. The Mn element plays a critical role in achieving a high quantum yield in synthesis of carbon dots, which was confirmed by the structure analysis using XPS and FTIR. Spectroscopic investigations proved that the decent PLQY and luminescence properties of Mn-CDs are due to the heteroatom doped, oxidized carbon-based surface passivation. In addition, the Mn-CDs are demonstrated as promising fluorescent sensors for iron ions with a linear range of 0–500 mmol/L and a detection limit of2.1 nmol/L(turn-off), indicating their great potential as a fluorescent probe for chemical sensing.
        Heteroatom doped carbon dots(CDs) with distinct merits are of great attractions in various fields such as solar cells, catalysis, trace element detection and photothermal therapy. In this work, we successfully synthesized blue-fluorescence and photostability manganese-doped carbon dots(Mn-CDs) with a quantum yield up to 7.5%, which was prepared by a facile one-step hydrothermal method with sodium citrate and manganese chloride. The Mn-CDs is the high mono-dispersity, uniform spherical nanoparticles. The Mn element plays a critical role in achieving a high quantum yield in synthesis of carbon dots, which was confirmed by the structure analysis using XPS and FTIR. Spectroscopic investigations proved that the decent PLQY and luminescence properties of Mn-CDs are due to the heteroatom doped, oxidized carbon-based surface passivation. In addition, the Mn-CDs are demonstrated as promising fluorescent sensors for iron ions with a linear range of 0–500 mmol/L and a detection limit of2.1 nmol/L(turn-off), indicating their great potential as a fluorescent probe for chemical sensing.

引文

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