Vuong Pham Hung, Bui Thi Hoan, Phuong Dinh Tam

Main Article Content

Abstract

Abstract: In this article carbon quantum dots (Cdots) were prepared by a facile, green, economical hydrothermal method of the mixed deionized water and lemon juice. Optical and structural properties of the Cdots have been extensively studied by UV–visible and fluorescence spectroscopy, x-ray diffraction (XRD) techniques, and high-resolution TEM (HR-TEM). Surface functionality of Cdots has been illustrated by Fourier transform infrared spectroscopy (FTIR). The fabricated Cdots emit bright green light with a broad spectrum. The Cdots exhibit captivating sensitivity and selectivity toward Fe 3+ with a linear range from 0 to 80 ppm and a detection limit of 38.08 ppm.


Keywords: Carbon quantum dots, lemon juice, sensing Fe3+

Keywords: Carbon quantum dots, lemon juice, sensing Fe3 .

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