Abstract
Fluorescent carbon dots (FCDs) were efficiently synthesized by one-step sodium hydroxide-assisted reflux method from poly(ethylene glycol) (PEG). The obtained FCDs exhibit excellent water-solubility and high stability. Under the UV irradiation, the FCDs could emit bright blue photoluminescence, and also they were found to show excellent up-conversion fluorescence. It was further demonstrated that such FCDs can serve as effective fluorescent sensing platform for Hg2+ ions detection with ultra-sensitivity and selectivity. The sensing system achieved a limit of detection as low as 1 fM, which is much lower than all the previous reported sensing systems for Hg2+ ions detection. This FCDs sensing system has been successfully applied for the analysis of Hg2+ ions in water samples from river, lake, and tap water, showing good practical feasibility.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2529-2534 |
| Number of pages | 6 |
| Journal | Materials Research Bulletin |
| Volume | 48 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 1 2013 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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Ultra-sensitive and selective Hg2+ detection based on fluorescent carbon dots. / Liu, Ruihua; Li, Haitao; Kong, Weiqian; Liu, Juan; Liu, Yang; Tong, Cuiyan; Zhang, Xing; Kang, Zhenhui.
In: Materials Research Bulletin, Vol. 48, No. 7, 01.07.2013, p. 2529-2534.Research output: Contribution to journal › Article
TY - JOUR
T1 - Ultra-sensitive and selective Hg2+ detection based on fluorescent carbon dots
AU - Liu, Ruihua
AU - Li, Haitao
AU - Kong, Weiqian
AU - Liu, Juan
AU - Liu, Yang
AU - Tong, Cuiyan
AU - Zhang, Xing
AU - Kang, Zhenhui
PY - 2013/7/1
Y1 - 2013/7/1
N2 - Fluorescent carbon dots (FCDs) were efficiently synthesized by one-step sodium hydroxide-assisted reflux method from poly(ethylene glycol) (PEG). The obtained FCDs exhibit excellent water-solubility and high stability. Under the UV irradiation, the FCDs could emit bright blue photoluminescence, and also they were found to show excellent up-conversion fluorescence. It was further demonstrated that such FCDs can serve as effective fluorescent sensing platform for Hg2+ ions detection with ultra-sensitivity and selectivity. The sensing system achieved a limit of detection as low as 1 fM, which is much lower than all the previous reported sensing systems for Hg2+ ions detection. This FCDs sensing system has been successfully applied for the analysis of Hg2+ ions in water samples from river, lake, and tap water, showing good practical feasibility.
AB - Fluorescent carbon dots (FCDs) were efficiently synthesized by one-step sodium hydroxide-assisted reflux method from poly(ethylene glycol) (PEG). The obtained FCDs exhibit excellent water-solubility and high stability. Under the UV irradiation, the FCDs could emit bright blue photoluminescence, and also they were found to show excellent up-conversion fluorescence. It was further demonstrated that such FCDs can serve as effective fluorescent sensing platform for Hg2+ ions detection with ultra-sensitivity and selectivity. The sensing system achieved a limit of detection as low as 1 fM, which is much lower than all the previous reported sensing systems for Hg2+ ions detection. This FCDs sensing system has been successfully applied for the analysis of Hg2+ ions in water samples from river, lake, and tap water, showing good practical feasibility.
UR - http://www.scopus.com/inward/record.url?scp=84877580310&partnerID=8YFLogxK
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U2 - 10.1016/j.materresbull.2013.03.015
DO - 10.1016/j.materresbull.2013.03.015
M3 - Article
AN - SCOPUS:84877580310
VL - 48
SP - 2529
EP - 2534
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
IS - 7
ER -