Preparation method of paper-based bismuth ferrite composite material with heterogeneous adsorption and catalytic function
A composite material, paper-based ferric acid technology, applied in chemical instruments and methods, adsorption water/sewage treatment, physical/chemical process catalysts, etc., can solve the problems of unsatisfactory effect and high carrier cost, and achieve good adsorption and catalysis effect, avoid agglomeration, facilitate recovery and recycling effect
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Embodiment 1
[0037] Bismuth ferrite (BiFeO) was prepared by hydrothermal method 3 ) paper-based composites
[0038] 1. Preparation of bismuth ferrite (BiFeO 3 ) nanoparticles
[0039] First measure 30-50mL of distilled water and place it in a container, add 10-15mL of nitric acid (68% by mass) to dilute; then weigh 0.005-0.006mol of bismuth nitrate and 0.005-0.006mol of ferric nitrate and pour them into the diluted nitric acid Stir and dissolve to prepare a mixed solution; then use a container to weigh 33-40g of potassium hydroxide and add water to dissolve, transfer to a 50mL volumetric flask to constant volume; then add the prepared potassium hydroxide (KOH) solution to the above mixed solution, Stir continuously to form a brown precipitate; then filter the solution with a conical funnel to obtain a brown precipitate, and wash it with distilled water 5-8 times; then add the precipitate to 40-45mL potassium hydroxide (KOH) solution and stir evenly; the obtained suspension Pour the solu...
Embodiment 2
[0049] Bismuth ferrite (BiFeO) was prepared by sol-gel method 3 ) paper-based composites
[0050] 1. Bismuth ferrite (BiFeO) was prepared by sol-gel method 3 ) nanoparticles
[0051] First, dissolve 0.005-0.006mol of ferric nitrate and 0.005-0.006mol of bismuth nitrate in 20-30mL of ethylene glycol methyl ether, then add 20-25μL of 0.1mol / L nitric acid solution, and then add 0.008-0.01mol of Citric acid and 10-15 mL of ethylene glycol, and the resulting mixture was stirred at 60-70° C. for 1-2 hours to form a sol. Heat the sol at 100-120°C for 5-6h to form a brown gel, then place it on an electric furnace and heat it at 100-120°C for 30-40 minutes, and calcinate it in a muffle furnace at 500-600°C After 2-3 hours, after cooling to room temperature, the obtained product is ground for later use.
[0052] 2. Preparation of plant fiber suspension
[0053] First, weigh 300-400g coniferous wood pulp board, soak it in 8-10L water for 30-40min, and tear it into small pieces of 3c...
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