Yellow-visual fluorescent carbon quantum dots from petroleum coke for the efficient detection of Cu2+ ions

Yue Wang; Wen Ting Wu; Ming Bo Wu; Hong Di Sun; Hui Xie; Chao Hu; Xue Yan Wu; Jie Shan Qiu

doi:10.1016/S1872-5805(15)60204-9

Yellow-visual fluorescent carbon quantum dots from petroleum coke for the efficient detection of Cu²⁺ ions

Yue Wang
, Wen Ting Wu
, Ming Bo Wu
, Hong Di Sun
, Hui Xie
, Chao Hu
, Xue Yan Wu
, Jie Shan Qiu

Research output: Contribution to journal › Article › peer-review

85 Scopus citations

Abstract

Yellow-visual fluorescent carbon quantum dots (CQDs) were prepared from petroleum coke by ultrasonic-assisted chemical oxidation andwere used as label-free probes for Cu²⁺ detection in water. The detection of Cu²⁺ by CQD probesis related to a quenching of fluorescence by a photo induced electron transfer mechanism. The quenched fluorescence of the CQDs by Cu²⁺ can be recovered by adding ethylene diaminetetraacetic acid. The yellow-visual fluorescent CQD probes have a linear detection range from 0.25 to 10 μM, a detection limit of 0.029 5 μM, a response time of 3 s, and a superior sensitivity and selectivity for Cu²⁺ detection compared to other fluorescent probes. The CQDs are easy to prepare, economical, reusable, fast to respond and can be used inon-line detection.

Original language	English
Pages (from-to)	550-559
Number of pages	10
Journal	Xinxing Tan Cailiao/New Carbon Materials
Volume	30
Issue number	6
DOIs	https://doi.org/10.1016/S1872-5805(15)60204-9
State	Published - 1 Dec 2015
Externally published	Yes

Keywords

Carbon quantum dots
Cu detection
Fast response
Petroleum coke
Yellow-visual

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10.1016/S1872-5805(15)60204-9

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title = "Yellow-visual fluorescent carbon quantum dots from petroleum coke for the efficient detection of Cu2+ ions",

abstract = "Yellow-visual fluorescent carbon quantum dots (CQDs) were prepared from petroleum coke by ultrasonic-assisted chemical oxidation andwere used as label-free probes for Cu2+ detection in water. The detection of Cu2+ by CQD probesis related to a quenching of fluorescence by a photo induced electron transfer mechanism. The quenched fluorescence of the CQDs by Cu2+ can be recovered by adding ethylene diaminetetraacetic acid. The yellow-visual fluorescent CQD probes have a linear detection range from 0.25 to 10 μM, a detection limit of 0.029 5 μM, a response time of 3 s, and a superior sensitivity and selectivity for Cu2+ detection compared to other fluorescent probes. The CQDs are easy to prepare, economical, reusable, fast to respond and can be used inon-line detection.",

keywords = "Carbon quantum dots, Cu detection, Fast response, Petroleum coke, Yellow-visual",

author = "Yue Wang and Wu, \{Wen Ting\} and Wu, \{Ming Bo\} and Sun, \{Hong Di\} and Hui Xie and Chao Hu and Wu, \{Xue Yan\} and Qiu, \{Jie Shan\}",

year = "2015",

month = dec,

day = "1",

doi = "10.1016/S1872-5805(15)60204-9",

language = "英语",

volume = "30",

pages = "550--559",

journal = "Xinxing Tan Cailiao/New Carbon Materials",

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publisher = "Science Press ",

number = "6",

}

TY - JOUR

T1 - Yellow-visual fluorescent carbon quantum dots from petroleum coke for the efficient detection of Cu2+ ions

AU - Wang, Yue

AU - Wu, Wen Ting

AU - Wu, Ming Bo

AU - Sun, Hong Di

AU - Xie, Hui

AU - Hu, Chao

AU - Wu, Xue Yan

AU - Qiu, Jie Shan

PY - 2015/12/1

Y1 - 2015/12/1

N2 - Yellow-visual fluorescent carbon quantum dots (CQDs) were prepared from petroleum coke by ultrasonic-assisted chemical oxidation andwere used as label-free probes for Cu2+ detection in water. The detection of Cu2+ by CQD probesis related to a quenching of fluorescence by a photo induced electron transfer mechanism. The quenched fluorescence of the CQDs by Cu2+ can be recovered by adding ethylene diaminetetraacetic acid. The yellow-visual fluorescent CQD probes have a linear detection range from 0.25 to 10 μM, a detection limit of 0.029 5 μM, a response time of 3 s, and a superior sensitivity and selectivity for Cu2+ detection compared to other fluorescent probes. The CQDs are easy to prepare, economical, reusable, fast to respond and can be used inon-line detection.

AB - Yellow-visual fluorescent carbon quantum dots (CQDs) were prepared from petroleum coke by ultrasonic-assisted chemical oxidation andwere used as label-free probes for Cu2+ detection in water. The detection of Cu2+ by CQD probesis related to a quenching of fluorescence by a photo induced electron transfer mechanism. The quenched fluorescence of the CQDs by Cu2+ can be recovered by adding ethylene diaminetetraacetic acid. The yellow-visual fluorescent CQD probes have a linear detection range from 0.25 to 10 μM, a detection limit of 0.029 5 μM, a response time of 3 s, and a superior sensitivity and selectivity for Cu2+ detection compared to other fluorescent probes. The CQDs are easy to prepare, economical, reusable, fast to respond and can be used inon-line detection.

KW - Carbon quantum dots

KW - Cu detection

KW - Fast response

KW - Petroleum coke

KW - Yellow-visual

UR - https://www.scopus.com/pages/publications/84964286136

U2 - 10.1016/S1872-5805(15)60204-9

DO - 10.1016/S1872-5805(15)60204-9

M3 - 文章

AN - SCOPUS:84964286136

SN - 2097-1605

VL - 30

SP - 550

EP - 559

JO - Xinxing Tan Cailiao/New Carbon Materials

JF - Xinxing Tan Cailiao/New Carbon Materials

IS - 6

ER -

Yellow-visual fluorescent carbon quantum dots from petroleum coke for the efficient detection of Cu²⁺ ions

Abstract

Keywords

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