THE EFFECT OF BASE DURING THE HYDROTHERMAL SYNTHESIS ON THE PHOTOPHYSICAL PROPERTIES OF HUMIC ACID-BASED CARBON DOTS 1) Department of Chemistry, Palangka Raya University, Indonesia Abstract In this study, we report the synthesis of highly emitting carbon dots by utilizing humic acid as a green, abundant, and renewable carbon source. The humic acid was isolated from the Central Kalimantan Peatland. The carbon dots were prepared using a hydrothermal method with different types and concentrations of base. The structural characterization of synthesized carbon dots was conducted with transmission electron microscopy, Raman, and infra-red spectroscopy. Based on UV-Vis and fluorescence studies, the photophysical properties of the carbon dots were significantly influenced by the base, and the suggested mechanism was also examined. Keywords: Carbon Dots- Fluorescence- Humic Acid- Nanomaterial Topic: Inorganic Chemistry |
JCRCCE 2022 Conference | Conference Management System |