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Detection of Ferric Iron Based on Fluorescence Quenching Effect of N-doped Carbon Quantum Dots
Deng Xiang-Yi1; Feng Ya-Li1; Li Hao-Ran2; Du Zhu-Wei2; Teng Qing1; Kang JiN-Xing1; Wang Hong-Jun1
2017-10-01
Source PublicationCHINESE JOURNAL OF ANALYTICAL CHEMISTRY
ISSN0253-3820
Volume45Issue:10Pages:1497-1503
Abstract

The photoluminescence properties of carbon quantum dots depend on their size and the properties of surface functional groups. The N-doped carbon dots (using small molecular ethylenediamine) with high quantum yield and excellent dispersibility were synthesized by one-step hydrothermal method with biomass tar that was generated in the reductive smelting process as a precursor. Rapid and accurate Fe3+ detection based on the selective fluorescence quenching effect of N-doped carbon quantum dots was achieved. The results showed that the as-synthesized N-doped carbon quantum dots were regular spherical, uniform in size with an average particle size of 2. 64 nm with a quantum yield of 26. 1%, and the crystal lattice spacing was 0. 25 nm, corresponding to the (100) facet of graphitic carbon structure. The functional groups on the surface of N-doped carbon quantum dots could interact with Fe3+ to form complex compound by coordination, leading to the fluorescence quenching effect. Fluorescence emission ratios kept a linear relationship with the concentrations of Fe3+ in the range of 0. 23-600 mu mol/ L with the detection limit of 230 nmol/L.

KeywordN-doped Carbon Quantum Dots Fluorescence Quenching Ferric Iron Biomass Tar
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.11895/j.issn.0253-3820.170344
Indexed BySCI
Language英语
WOS KeywordOne-step Synthesis ; Nanoparticles ; Metabolism ; Graphene ; Nanodots ; Fe3++
WOS Research AreaChemistry
WOS SubjectChemistry, Analytical
Funding OrganizationMajor Science and Technology Program for Water Pollution Control and Treatment(2015ZX07205-003) ; National Natural Science Foundation of China(21176026 ; 21176242)
WOS IDWOS:000414957900012
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23358
Collection生化工程国家重点实验室
Affiliation1.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Deng Xiang-Yi,Feng Ya-Li,Li Hao-Ran,et al. Detection of Ferric Iron Based on Fluorescence Quenching Effect of N-doped Carbon Quantum Dots[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2017,45(10):1497-1503.
APA Deng Xiang-Yi.,Feng Ya-Li.,Li Hao-Ran.,Du Zhu-Wei.,Teng Qing.,...&Wang Hong-Jun.(2017).Detection of Ferric Iron Based on Fluorescence Quenching Effect of N-doped Carbon Quantum Dots.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,45(10),1497-1503.
MLA Deng Xiang-Yi,et al."Detection of Ferric Iron Based on Fluorescence Quenching Effect of N-doped Carbon Quantum Dots".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 45.10(2017):1497-1503.
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