A highly efficient, rapid, room temperature synthesis method for coal-based water-soluble fluorescent carbon dots and its use in Fe<sup>3+</sup> ion detection

CHENG Zhong-fu; WU Xue-yan; LIU Lei; HE Long; YANG Zu-guo; CAO Chang; LU Yan; GUO Ji-xi

doi:10.1016/S1872-5805(23)60706-1

Volume 38 Issue 6

Nov. 2023

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Article Navigation > New Carbon Mater. > 2023 > 38(6): 1104-1115

CHENG Zhong-fu, WU Xue-yan, LIU Lei, HE Long, YANG Zu-guo, CAO Chang, LU Yan, GUO Ji-xi. A highly efficient, rapid, room temperature synthesis method for coal-based water-soluble fluorescent carbon dots and its use in Fe3+ ion detection. New Carbon Mater., 2023, 38(6): 1104-1115. doi: 10.1016/S1872-5805(23)60706-1

Citation:

CHENG Zhong-fu, WU Xue-yan, LIU Lei, HE Long, YANG Zu-guo, CAO Chang, LU Yan, GUO Ji-xi. A highly efficient, rapid, room temperature synthesis method for coal-based water-soluble fluorescent carbon dots and its use in Fe³⁺ ion detection. New Carbon Mater., 2023, 38(6): 1104-1115. doi: 10.1016/S1872-5805(23)60706-1

Citation:

CHENG Zhong-fu, WU Xue-yan, LIU Lei, HE Long, YANG Zu-guo, CAO Chang, LU Yan, GUO Ji-xi. A highly efficient, rapid, room temperature synthesis method for coal-based water-soluble fluorescent carbon dots and its use in Fe³⁺ ion detection. New Carbon Mater., 2023, 38(6): 1104-1115. doi: 10.1016/S1872-5805(23)60706-1

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A highly efficient, rapid, room temperature synthesis method for coal-based water-soluble fluorescent carbon dots and its use in Fe³⁺ ion detection

doi: 10.1016/S1872-5805(23)60706-1

CHENG Zhong-fu^1
,,
WU Xue-yan^2
,,
LIU Lei^1
,,
HE Long^1
,,
YANG Zu-guo^1
,,
CAO Chang^1
,,
LU Yan²,
GUO Ji-xi^{2
,
,}

1.
Sinopec Northwest Oilfield Branch Company, Urumqi 830011, China
2.
Key Laboratory of Advanced Functional Materials, Autonomous Region; Key Laboratory of Energy Materials Chemistry, Ministry of Education; College of Chemistry, Xinjiang University,Urumqi 830046, China

More Information

Author Bio:
程仲富，硕士，副研究员. E-mail：chengzf136@163.com
Corresponding author: GUO Ji-xi. E-mail: jxguo1012@163.com
Received Date: 2020-07-07
Rev Recd Date: 2020-08-20

Available Online: 2022-11-03

Publish Date: 2023-11-23

Abstract

Abstract

We report a method for the of coal-based fluorescent carbon dots (CDs) at room temperature using a mixture of hydrogen peroxide (H₂O₂) and formic acid (HCOOH) as the oxidant instead of concentrated HNO₃ or H₂SO₄. The CDs have an excitation dependent behavior with a high quantum yield (QY) of approximately 7.2%. The CDs are water soluble and have excellent photo-stability, good resistance to salt solutions, and are insensitive to pH in a range of 2.0-12.0. The CDs were used as a very sensitive probe for the turn-off sensing of Fe³⁺ ion with a detection limit as low as 600 nmol/L and a detection range from 2 to 100 μmol/L. This work provides a way for the high value-added utilization of coal.
- Coal,
- Carbon dots,
- Synthesis,
- Photoluminescent,
- Fe³⁺ ion detection

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References(71)

References

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