Eco-Friendly Synthesis of Nitrogen-Doped Fluorescent Carbon Dots from Citrus Juice for Detection of Fe3+ Ions and Anti-Counterfeiting Printing Applications.
Tianbao Fang, Lei Wu, Shaoyun Huang, Ting Guo, Yafeng Deng
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引用次数: 0
Abstract
Recently, the use of natural products to synthesize of carbon dots (CDs) has received much attention. Herein, citrus juice and urea were successfully turned into nitrogen-doped carbon dots (N-CDs) via the hydrothermal-carbonization route. The synthesized N-CDs have good fluorescence luminescence performance and high optical stability. In addition, the N-CDs exhibited selective and sensitive fluorescence quenching behavior towards Fe3+ ions and the limit of detection (LOD) can reach 1.59 µM. Moreover, environmentally friendly fluorescent inks were prepared with N-CDs as fluorescent material and cellulose (HPC, HEC, HEMC, HPMC) as a binder. These fluorescent inks meet the viscosity (4000-12000 mPa·s) and surface tension (20-60 mN/m) requirements of screen printing. Fluorescent ink still maintains good fluorescence after forming a film on filter paper.
期刊介绍：
Journal of Fluorescence is an international forum for the publication of peer-reviewed original articles that advance the practice of this established spectroscopic technique. Topics covered include advances in theory/and or data analysis, studies of the photophysics of aromatic molecules, solvent, and environmental effects, development of stationary or time-resolved measurements, advances in fluorescence microscopy, imaging, photobleaching/recovery measurements, and/or phosphorescence for studies of cell biology, chemical biology and the advanced uses of fluorescence in flow cytometry/analysis, immunology, high throughput screening/drug discovery, DNA sequencing/arrays, genomics and proteomics. Typical applications might include studies of macromolecular dynamics and conformation, intracellular chemistry, and gene expression. The journal also publishes papers that describe the synthesis and characterization of new fluorophores, particularly those displaying unique sensitivities and/or optical properties. In addition to original articles, the Journal also publishes reviews, rapid communications, short communications, letters to the editor, topical news articles, and technical and design notes.
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