Carbon Quantum dot Synthesis from Indigo Plant (Indigofera tinctoria L.)
Mohammad Reza Zargaran Khouzani, Seyed Mohammad Amin Daei Naseri
Asian Journal of Research in Botany · pp. 295–300 · Published 31 Dec 2022
Abstract
One of the main challenges of making Nano catalysts is choosing and preparing suitable modifiers. The present study reports the synthesis of carbon Nano dots by a low-cost hydrothermal method using Indigofera tinctoria leaf extract as a new carbon precursor. The optical properties of CQDs were analyzed by UV-visible spectroscopy and fluorescence studies. Surface morphology, functional groups and crystallization of CQDs were evaluated by HR-TEM, FT-IR and XRD methods, respectively. The spherical appearance of the synthesized CQDs was confirmed by HR-TEM, and the calculated size of the CQDs was 4 nm. XRD and SAED pattern results provide evidence for the amorphous nature of the prepared CQDs. The thermal stability of CQDs was investigated using TGA analysis. The obtained CQDs acted as a green Nano catalyst.
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