一步法合成N,S共掺杂荧光碳量子点及其检测汞离子性能

魏居孟; 刘碧桃; 张欣; 宋常春

doi:10.1016/S1872-5805(18)60343-9

一步法合成N,S共掺杂荧光碳量子点及其检测汞离子性能

doi: 10.1016/S1872-5805(18)60343-9

1.
安徽科技学院化学与材料工程学院, 安徽凤阳 233100;
2.
重庆文理学院材料与化学工程学院, 重庆 402160;
3.
西安科技大学理学院, 陕西西安 710054

基金项目: 安徽科技学院引进人才项目基金（ZRC2014448）；安徽科技学院重点学科基金（AKZDXK2015A01）；环境材料与修复技术重庆市重点实验室开放课题基金（CEK1502）.

详细信息

通讯作者:
宋常春.E-mail:lzu_alice@163.com

中图分类号: TQ127.1⁺1
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- 文章访问数: 372
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- 被引次数: 0
出版历程
- 收稿日期: 2018-04-02
- 录用日期: 2018-08-30
- 修回日期: 2018-06-06
- 刊出日期: 2018-08-28

One-pot synthesis of N, S co-doped photoluminescent carbon quantum dots for Hg²⁺ ion detection

1.
College of Chemistry and Materials Engineering, Anhui Science and Technology of University, Fengyang 233100, China;
2.
College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China;
3.
College of Science, Xi'an University of Science and Technology, Xi'an 710054, China

Funds: Talent Introduction Foundation of Anhui Science and Technology of University (ZRC2014448); Key Discipline Foundation of Anhui Science and Technology of University (AKZDXK2015A01); Open Foundation of Chongqing Key Laboratory of Environmental & Remediation Technologies (CEK1502).

摘要

摘要: 采用简单一步水热法合成了高荧光量产率（FLQY，12.6%）的N，S共掺杂碳量子点（N，S-CQDs）。该碳量子点具有小的粒径，无定型结构，独特的表面态和依赖于激发光的荧光特性。N和S的共掺杂促进了N，S-CQDs和Hg²⁺离子之间的电子传递和协调相互作用。结果表明，该N，S共掺杂碳量子点在湖水中检测Hg²⁺离子展现出了较高的灵敏度和选择性。因此，该碳量子点作为荧光探针在环境监测中具有很好的应用前景。
- 碳量子点 /
- L-半胱氨酸 /
- 共掺杂 /
- 荧光 /
- Hg²⁺离子检测
Abstract: N and S co-doped carbon quantum dots (N, S-CQDs) with a high fluorescence quantum yield (12.6%) were synthesized by a one-pot hydrothermal method. Results indicate that the N, S-CQDs have a small particle size and an amorphous structure, exhibiting unique surface states and excitation wavelength-independent fluorescent properties. Co-doping of N and S increases the electron-transfer rate and improves the coordination interaction between the N, S-CQDs and Hg²⁺ ions. The N, S-CQDs show a high sensitivity and selectivity in detecting Hg²⁺ ions even for a lake water sample. They are promising fluorescence probes for environmental monitoring.
- Carbon quantum dots /
- L-cysteine /
- Co-doped /
- Photoluminescent /
- Hg²⁺ ions detection

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