Synthesis of multicolor fluorescent carbon dots from zanthoxylum bungeanum and their application in fluorescent anti-counterfeiting ink

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2023-08-06 DOI:10.1016/j.jphotochem.2023.115066

Shihua Liao , Xiang Long , Yanshun Ma , Shaogui Wu , Jiayang Wang

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Abstract

Multicolor fluorescent carbon dots (CDs) have wide application prospects in many fields. Presented herein reported a synthesis of multicolor fluorescent CDs using zanthoxylum bungeanum as a carbon precursor. By changing the nitrogen sources, blue, green, and red fluorescent carbon dots (B-CDs, G-CDs, and R-CDs) with stable optical properties and high quantum yields (QY) were synthesized. Their emission wavelengths are 492 nm, 523 nm, and 601 nm respectively and their QYs were measured to be 13.1%, 11.2%, and 9.8%, respectively. These CDs exhibit good salt resistance, photobleaching resistance, and chemical stability. These characteristics make them suitable for various applications, particularly in the field of anti-counterfeiting fluorescent ink. This study provides an economic and efficient strategy for synthesizing multicolor fluorescent CDs derived from natural products, highlighting the potential for producing multicolor CDs and enhancing their application value.

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花椒多色荧光碳点的合成及其在荧光防伪油墨中的应用

多色荧光碳点在许多领域具有广泛的应用前景。本文报道了以花椒为碳前驱体合成多色荧光CDs的方法。通过改变氮源，合成了具有稳定光学性质和高量子产率（QY）的蓝色、绿色和红色荧光碳点（B-CDs、G-CDs和R-CDs）。它们的发射波长分别为492nm、523nm和601nm，测得它们的QY分别为13.1%、11.2%和9.8%。这些CD表现出良好的耐盐性、抗光漂白性和化学稳定性。这些特性使它们适用于各种应用，特别是在防伪荧光油墨领域。本研究为合成源自天然产物的多色荧光CDs提供了一种经济有效的策略，突出了生产多色CDs的潜力并提高了其应用价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Photochemistry and Photobiology A-chemistry 化学-物理化学

CiteScore

7.90

自引率

7.00%

发文量

580

审稿时长

48 days

期刊介绍： JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds. All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor). The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.