Effect of fabrication technique on optical properties of carbon nano-dots from gac fruit (momordica cochinchinensis spreng) skin
Vol. 134 No. 1C (2025), Original Article
Vol. 134 No. 1C (2025)

Effect of fabrication technique on optical properties of carbon nano-dots from gac fruit (momordica cochinchinensis spreng) skin

Original Article
https://doi.org/10.26459/hueunijns.v134i1C.7681
Published 2025-06-17
Le Xuan Diem Ngoc*
University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Thanh Tien Do
University of Agriculture and Forestry, Hue University, 102 Phung Hung St., Hue, Vietnam
Khoa Quang Ngo
University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
PDF (Vietnamese)

Keywords

vỏ quả gấc
cacbon nano
tính chất quang Gac fruit skin
cacbon nano
optical properties

How to Cite

1.
Lê XDN, Đỗ TT, Ngô KQ. Effect of fabrication technique on optical properties of carbon nano-dots from gac fruit (momordica cochinchinensis spreng) skin. hueuni-jns [Internet]. 2025Jun.17 [cited 2025Oct.10];134(1C):171-8. Available from: http://222.255.146.83/index.php/hujos-ns/article/view/7681
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Abstract

In this study, we fabricated carbon dots (CDs) solutions from the skin of the Gac fruit by using the hydrothermal method. The samples were fabricated at 190 °C for 6, 8, 10, 12, 14, and 16 hours. We investigated the structural properties of the obtained CDs via X-Ray diffraction (XRD), and the optical properties of the samples were accessed via UV–Vis absorption, photoluminescence, FTIR spectra, and the quantum yield. The results show that the CDs absorb light at the wavelength of 276 nm and emit at the wavelength of 430 nm. The FTIR spectrum clarifies that the functional groups on the surface of the carbon core are hydroxyl and carbonyl. The results indicate that the quantum yield varies with the treatment time and reaches a maximal value (5,06%) at 190 °C and 14 hours.

https://doi.org/10.26459/hueunijns.v134i1C.7681
PDF (Vietnamese)

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