Preparation method for bamboo pulp cellulose-based integrated Fenton catalyst Fe<3+>C2O4/R
An integrated Fenton and cellulose-based technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve high oxidation cost, low degradation efficiency, Fenton To solve the problems such as the difficulty of recycling the reagents, to expand the range of raw materials and increase economic income
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[0016] Example 1:
[0017] 1) The light bamboo pulp board is pulverized by a plant grinder, filtered through a 100-mesh screen to obtain bamboo pulp powder with a particle size of 0.15 mm or less, added with an alkaline solution pre-frozen to -10 ℃, stirred vigorously for 4 min, and left to react 120 min, the alkaline solution is a mixed solution of sodium hydroxide and urea. The mass percentages of sodium hydroxide, urea and deionized water are 6 wt%, 11 wt% and 83 wt%, respectively. The bamboo pulp powder and the mixed solution are 2 g : 70 mL for mixing and reaction, then take it out and stir in an ice bath to obtain a uniform transparent bamboo pulp cellulose solution;
[0018] 2) Under the action of mechanical stirring, heat the bamboo pulp cellulose solution obtained in step 1) to 70℃ in a water bath, bubbling with nitrogen for 20 minutes, adding 0.1 g / g bamboo pulp powder of ammonium persulfate for 20 minutes, adding 0.5 in sequence g / g bamboo pulp powder of acrylamide, 2....
Example Embodiment
[0020] Example 2:
[0021] 1) The purple bamboo pulp board is pulverized by a plant grinder, filtered through a 100-mesh screen to obtain bamboo pulp powder with a particle size of 0.15 mm or less, add an alkaline solution pre-frozen to -15 ℃ and stir vigorously for 3 min, and let it stand for 90 min, where the alkaline solution is a mixed solution of sodium hydroxide and urea. The mass percentages of sodium hydroxide, urea and deionized water are 5 wt%, 10 wt% and 85 wt%, respectively. The bamboo pulp powder and the mixed solution are 2 g : 60 mL is mixed and reacted, then taken out and placed in an ice bath and stirred to obtain a uniform transparent bamboo pulp cellulose solution;
[0022] 2) Under mechanical stirring, heat the bamboo pulp cellulose solution obtained in step 1) to 60℃ in a water bath, bubbling with nitrogen for 30 minutes, adding 0.15 g / g bamboo pulp powder of ammonium persulfate for 15 minutes, adding 0.75 in sequence g / g bamboo pulp powder of acrylamide, 3.0...
Example Embodiment
[0024] Example 3:
[0025] 1) The purple bamboo pulp board is pulverized by a plant grinder, filtered through a 100-mesh screen to obtain bamboo pulp powder with a particle size of 0.15 mm or less, add an alkaline solution pre-frozen to -25°C, stir vigorously for 2 minutes, and let stand for 60 minutes min, where the alkaline solution is a mixed solution of sodium hydroxide and urea. The mass percentages of sodium hydroxide, urea and deionized water are 4 wt%, 9 wt% and 87 wt%, respectively. The bamboo pulp powder and the mixed solution are 2 g : Mix and react with 50 mL, then take it out and stir in an ice bath to obtain a uniform transparent bamboo pulp cellulose solution;
[0026] 2) Under the action of mechanical stirring, heat the bamboo pulp cellulose solution obtained in step 1) to 50℃ in a water bath, bubbling in nitrogen for 40 minutes, adding 0.2 g / g bamboo pulp powder of ammonium persulfate for 10 minutes, adding 1.0 in sequence g / g bamboo pulp powder of acrylamide, 4...
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