Feb 26, 2024

Public workspaceSynthesis of Carbon Dots using Citric acid (Solvent Free reaction)

  • 1University of Kashmir
Open access
Protocol Citationqurashiubaid 2024. Synthesis of Carbon Dots using Citric acid (Solvent Free reaction). protocols.io https://dx.doi.org/10.17504/protocols.io.e6nvwd25dlmk/v1
License: This is an open access protocol distributed under the terms of the Creative Commons Attribution License,  which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Protocol status: Working
We use this protocol and it's working
Created: November 17, 2023
Last Modified: February 26, 2024
Protocol Integer ID: 91086
Abstract
Carbon Dots are the fluorescent nanoparticles that have wide range of applications. Facile synthesis of Carbon Dots paves the way for making this material mainstream for use. Synthesis of Carbon Dots by using Citric acid as the precursor in a solvent free reaction is a easy method in which the synthesized Carbon Dots shows fluorescence in the range of 520nm. This mode is simple and doesn't require complex instrumentation.
Protocol materials
ReagentCitric AcidP212121
Step 1
Synthesis of Carbon Dots using Citric acid (Solvent Free reaction)
Synthesis of Carbon Dots using Citric acid (Solvent Free reaction)
42m
42m
ReagentCitric AcidP212121 Amount2 g in RB flask and heat on heating mantle and melt the compound Temperature120 °C

2m
Once you get the yellow molten compound , drop it in the Concentration0.1 Mass Percent SampleSample 100ml solution, dropwise and stir it on magnetic stirrer.

15m
Then centrifuge the solution at 15000rpm forDuration00:25:00 and collect the supernatant and characterize it for fluorescence by using UV-Vis spectrophotometer and subsequently by using PL instrument.

25m

Expected result
In UV-Vis absorption peak will be at 210nm and in PL the excitation peak will be a wide peak in the range of 520 nm