Preparation method and application of basalt fiber-TiO2 composite material
A technology of basalt fibers and composite materials, applied in chemical instruments and methods, light water/sewage treatment, physical/chemical process catalysts, etc., can solve problems such as poor sensitivity to visible light, difficult recovery of photocatalysts, and easy condensation, etc., to achieve Improve photolysis efficiency, low price, good flexibility
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Embodiment 1
[0026] Weigh 9 grams of nano-TiO according to a certain stoichiometric ratio (mass ratio of 9:1) 2 powder and 1 gram of chopped basalt fiber, first nano-TiO 2 Dissolve in deionized water, stir strongly for 30 minutes to obtain TiO 2 Nano sol, add chopped basalt fiber to 0.02mol / L NaOH solution, stir magnetically for 30min, then add TiO 2 Nano sol was added to the above liquid, and then magnetically stirred for 30 minutes to obtain basalt fiber-TiO 2 For the precursor of the composite material, add the prepared precursor into a 50mL stainless steel high-pressure reactor with a polytetrafluoroethylene liner, place it in a constant temperature drying oven at 120°C for 10 hours, control the reaction time, and cool to room temperature after the reaction , filtered, the product was ultrasonically rinsed with deionized water and absolute ethanol, and then dried in an oven at 80°C to obtain basalt fiber-TiO 2 composite photocatalyst.
Embodiment 2
[0028] Weigh 9 grams of nano-TiO according to a certain stoichiometric ratio (mass ratio of 9:1) 2 powder and 1 gram of chopped basalt fiber, first nano-TiO 2 Dissolve in deionized water, stir strongly for 30 minutes to obtain TiO 2 Nano sol, add chopped basalt fiber to 0.02mol / L NaOH solution, stir magnetically for 30min, then add TiO 2 Nano sol was added to the above liquid, and then magnetically stirred for 30 minutes to obtain basalt fiber-TiO 2 For the precursor of composite materials, add the prepared precursor into a 50mL stainless steel high-pressure reactor with a polytetrafluoroethylene liner, place it in a constant temperature drying oven at 150°C for 10 hours, control the reaction time, and cool to room temperature after the reaction , filtered, the product was ultrasonically rinsed with deionized water and absolute ethanol, and then dried in an oven at 80°C to obtain basalt fiber-TiO 2 composite photocatalyst.
Embodiment 3
[0030] Weigh 9 grams of nano-TiO according to a certain stoichiometric ratio (mass ratio of 9:1) 2 powder and 1 gram of chopped basalt fiber, first nano-TiO 2Dissolve in deionized water, stir strongly for 30 minutes to obtain TiO 2 Nano sol, add chopped basalt fiber to 0.02mol / L NaOH solution, stir magnetically for 30min, then add TiO 2 Nano sol was added to the above liquid, and then magnetically stirred for 30 minutes to obtain basalt fiber-TiO 2 For the precursor of composite materials, add the prepared precursor to a 50mL stainless steel high-pressure reactor with a polytetrafluoroethylene liner, place it in a constant temperature drying oven at 180°C for 10 hours, control the reaction time, and cool to room temperature after the reaction , filtered, the product was ultrasonically rinsed with deionized water and absolute ethanol, and then dried in an oven at 80°C to obtain basalt fiber-TiO 2 composite photocatalyst.
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