Pyrolytic synthesis method for water-soluble fluorescent carbon nano-particles
A carbon nanoparticle and synthesis method technology, applied in the direction of nanotechnology, nanotechnology, nanostructure manufacturing, etc., can solve the problems that are not suitable for large-scale preparation, complex post-processing, strong acid oxidation, etc., and achieve low price, simple process method, The effect of easy operation
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Embodiment 1
[0022] Embodiment 1: The specific preparation steps of this embodiment are as follows:
[0023] (1) First, weigh 1.0 g of EDTA-2Na with an electronic balance, and evenly spread it on the bottom of the quartz boat.
[0024] (2) Put the quartz boat into the tube furnace, N 2 It was calcined at 400°C for 2 hours under protection, and the heating rate was 10°C / min. After calcining, the sample was ground into powder.
[0025] (3) Spread the obtained powder evenly on the bottom of the quartz boat, put it into a tube furnace, and anneal at 400° C. for 15 minutes in air, then take out the quartz boat, and collect the sample powder after cooling.
[0026] (4) Dissolve the obtained powder in 10 mL of ethanol, place it in an ultrasonic oscillator for 5 to 10 minutes, and centrifuge at a high speed (15,000 rpm) to obtain the supernatant, repeat 2-3 times, and concentrate the supernatant by rotary evaporation ( Contains a small amount of ethanol).
[0027] (5) Pour the concentrated solu...
Embodiment 2
[0028] Embodiment 2: The specific preparation steps of this embodiment are as follows:
[0029] (1) First, weigh 1.0 g of EDTA-4Na with an electronic balance, and evenly spread it on the bottom of the quartz boat.
[0030] (2) Put the quartz boat into the tube furnace, N 2 It was calcined at 400°C for 2 hours under protection, and the heating rate was 10°C / min. After calcining, the sample was ground into powder.
[0031] (3) Dissolve the obtained powder in 10 mL of ethanol, place it in an ultrasonic oscillator for 5 to 10 minutes, and centrifuge at a high speed (15,000 rpm) to obtain the supernatant, repeat 2-3 times, collect the supernatant, and rotavap It is concentrated (contains a small amount of ethanol).
[0032] (4) Pour the concentrated solution into a 50mL beaker and dry in an oven at a temperature of 60-80°C for 7-16 hours to finally obtain water-soluble fluorescent carbon nanoparticles.
[0033] The raw materials EDTA-2Na and EDTA-4Na used in the above examples w...
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