Method for coupling of PVDF/carbon fiber-based MFe2O4 photocatalysis conductive filtering membrane and MBR/MFC
A photocatalysis, carbon fiber technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as high energy consumption, membrane pollution, etc., to improve sewage treatment. The effect of efficiency
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Embodiment 1
[0025] Weigh 0.90g FeCl 3 ·6H 2 O and 0.40 g CoCl 2 ·6H 2 O, add 50mL of ethylene glycol and 20mL of 5mol / L NaOH solution in sequence, stir evenly and ultrasonicate for 5min, then pour the solution into a glass dish dedicated to microwave, and heat it with microwave until the solvent is completely evaporated to obtain CoFe 2 o 4 nanoparticles. The combined product has magnetic characteristics, and the product is washed with deionized water to remove ionic impurities, and then suction-filtered with an aqueous phase filter membrane. The resulting solid is placed in a vacuum oven for drying to obtain pure CoFe 2 o 4 nanoparticles.
[0026] Add 0.2g of carbon powder to the 5% PVDF casting solution, stir well, then add 0.1g of CoFe 2 o 4 , after stirring evenly, defoaming and standing still, lay a carbon fiber cloth (thickness about 250 μm) on a flat glass plate, coat a 200 μm PVDF membrane on its surface, immerse in deionized water for phase inversion overnight, and obtai...
Embodiment 2
[0029] Weigh 0.90g FeCl 3 ·6H 2 O and 0.23 g CoCl 2 ·6H 2 O, add 100mL of ethylene glycol and 5mL of 13mol / L NaOH solution in turn, stir evenly and ultrasonically for 20min, then pour the solution into a glass dish, heat with microwave until the solvent evaporates completely, and obtain CoFe 2 o 4 nanoparticles. The combined product has magnetic characteristics, and the product is washed with deionized water to remove ionic impurities, and then suction-filtered with an aqueous phase filter membrane. The resulting solid is placed in a vacuum oven for drying to obtain pure CoFe 2 o 4 nanoparticles.
[0030] In the 16% PVDF casting solution, add 2g of carbon powder, stir evenly, and then add 2g of CoFe2 o 4 , after stirring evenly, defoaming and standing still, lay a carbon fiber cloth (thickness about 250 μm) on a flat glass plate, coat a 2000 μm PVDF membrane on its surface, immerse in deionized water for phase inversion overnight, and obtain PVDF / Carbon fiber based ...
Embodiment 3
[0033] Weigh 0.90g FeCl 3 ·6H 2 O and 0.48 g CoCl 2 ·6H 2 O, add 80mL of ethylene glycol and 8mL of 7.5mol / L NaOH solution in turn, stir evenly, place in an ultrasonic cell pulverizer for 15 minutes of ultrasonication, then pour the solution into a glass dish dedicated to microwave, and heat it with microwave until the solvent is completely evaporated to obtain CoFe 2 o 4 nanoparticles. The combined product has magnetic characteristics, and the product is washed with deionized water to remove ionic impurities, and then suction-filtered with an aqueous phase filter membrane. The resulting solid is placed in a vacuum oven for drying to obtain pure CoFe 2 o 4 nanoparticles.
[0034] In 10% PVDF casting solution, add 0.3g carbon powder, stir evenly, then add 0.1-0.3g CoFe 2 o 4 , after stirring evenly, defoaming and standing still, lay a carbon fiber cloth (thickness about 250 μm) on a flat glass plate, coat a 300 μm PVDF membrane on its surface, immerse in deionized wat...
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