Preparation method of brown algae polyphenol particles for removing heavy metal pollutants in water
A technology of brown algae polyphenol particles and brown algae polyphenols, applied in water pollutants, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve problems such as pollution, toxic removal efficiency, etc., and achieve simple adsorption process and low price Effect
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Embodiment 1
[0017] step 1):
[0018] Prepare 1 mg / L sodium polystyrene sulfonate aqueous solution with sterile distilled water. Prepare 20mM calcium nitrate solution and 20mM sodium carbonate solution with the prepared sodium polystyrene sulfonate aqueous solution;
[0019] Step (2):
[0020] Take 8 mL of sodium carbonate solution and quickly add it to the stirring 40 mL of calcium nitrate solution, continue stirring for 5 min, filter and wash the prepared nanoparticles with water and alcohol after stirring, and obtain 500 nm CaCO3 after vacuum drying for 24 h. 3 particle;
[0021] Step (3):
[0022] Take 3 mg of dry CaCO 3 The particles were added to 20 mL of 50 mg / L brown algae polyphenol aqueous solution, and after stirring for 24 hours, brown algae polyphenol / calcium carbonate particles with a size of about 500 nm were obtained.
[0023] figure 1 Fucoidan / CaCO prepared for this example 3 TEM images of the particles. Each gram of the particle can remove up to 2040mg Pb(II); 925...
Embodiment 2
[0025] step 1):
[0026] Prepare 1 mg / L sodium polystyrene sulfonate aqueous solution with sterile distilled water. Prepare 20mM calcium nitrate solution and 20mM sodium carbonate solution with the prepared sodium polystyrene sulfonate aqueous solution;
[0027] Step (2):
[0028] Take 20mL of sodium carbonate solution and quickly add it to the stirring 40mL of calcium nitrate solution, continue to stir for 20min, filter and wash the prepared nanoparticles with water and alcohol after stirring, and vacuum dry for 24h to obtain 2500nm CaCO 3 particle;
[0029] Step (3):
[0030] Take 8 mg of dry CaCO 3 The particles were added to 20 mL of 50 mg / L brown algae polyphenol aqueous solution, and after stirring for 24 hours, brown algae polyphenol / calcium carbonate particles with a size of about 2500 nm were obtained.
[0031] figure 2 Fucoidan / CaCO prepared for this example 3 TEM images of particles
Embodiment 3
[0033] step 1):
[0034] Prepare 1 mg / L sodium polystyrene sulfonate aqueous solution with sterile distilled water. Prepare 20mM calcium nitrate solution and 20mM sodium carbonate solution with the prepared sodium polystyrene sulfonate aqueous solution;
[0035] Step (2):
[0036] Take 20mL of sodium carbonate solution and quickly add it to the stirring 40mL of calcium nitrate solution, continue to stir for 18min, filter and wash the prepared nanoparticles with water and alcohol after stirring, and obtain 2000nm CaCO2 after vacuum drying for 24h. 3 particle;
[0037] Step (3):
[0038] Take 10mg of dry CaCO 3 The particles were added to 20 mL of 50 mg / L brown algae polyphenol aqueous solution, and after stirring for 24 hours, brown algae polyphenol / calcium carbonate particles with a size of about 2000 nm were obtained.
[0039] image 3 Fucoidan / CaCO prepared for this example 3 TEM images of the particles.
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