Synthetic method of sepiolite/nano TiO2 composite material
The technology of a composite material and a synthesis method is applied in the synthesis field of sepiolite/nano TiO2 composite material, which can solve the problems of poor additive effect and low purification rate, and achieve good formaldehyde removal ability, good adsorption, and enhanced photocatalytic performance. Effect
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[0021] Example 1
[0022] Sepiolite / Nano TiO 2 Synthetic method of composite material, using sepiolite and tetrabutyl titanate as raw materials, using in-situ polymerization to synthesize sepiolite / nano TiO 2 Composite materials, including the following steps:
[0023] (1) Add 5g sepiolite into a 250ml three-necked flask, slowly add 100ml ethanol and 12.5ml tetrabutyl titanate, stir for 30min at a speed of 400r / min under a constant temperature water bath at 25℃, and then ultrasonically disperse for 30min to make the seafoam Mix the stone and the solution evenly;
[0024] (2) Raise the temperature to 90°C and stir the solution at a speed of 500r / min until the ethanol is completely volatilized, add 187.5ml water and 1.25ml hydrochloric acid, and heat until the water is completely volatilized;
[0025] (3) Wash the product several times with water, put it in a vacuum drying oven at 60°C for 12 hours, and then put it in a muffle furnace at 500°C for 4 hours to obtain sepiolite / nano TiO 2 ...
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[0027] Example 2
[0028] Sepiolite / Nano TiO 2 Synthetic method of composite material, using sepiolite and tetrabutyl titanate as raw materials, using in-situ polymerization to synthesize sepiolite / nano TiO 2 Composite materials, including the following steps:
[0029] (1) Add 8g sepiolite into a 250ml three-necked flask, slowly add 130ml ethanol and 20ml tetrabutyl titanate, stir for 22min at a speed of 600r / min under a constant temperature water bath at 40℃, and then ultrasonically disperse for 35min to make the sepiolite and The solution is evenly mixed;
[0030] (2) Warm up to 80°C and stir the solution at a speed of 600r / min until the ethanol is completely volatilized, add 200ml of water and 1.5ml of hydrochloric acid, and heat until the water is completely volatilized;
[0031] (3) Wash the product several times with water, put it in a vacuum drying oven at 75°C for 10 hours, and then put it in a muffle furnace at 560°C for 3.2 hours to obtain sepiolite / nano TiO 2 Composite mate...
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[0032] Example 3
[0033] Sepiolite / Nano TiO 2 Synthetic method of composite material, using sepiolite and tetrabutyl titanate as raw materials, using in-situ polymerization to synthesize sepiolite / nano TiO 2 Composite materials, including the following steps:
[0034] (1) Add 3g sepiolite into a 250ml three-necked flask, slowly add 80ml ethanol, 10ml tetrabutyl titanate, stir for 18min at 800r / min under a constant temperature water bath of 30℃, and then ultrasonically disperse for 30min to make the sepiolite and The solution is evenly mixed;
[0035] (2) Raise the temperature to 85°C and stir the solution at a speed of 550r / min until the ethanol is completely volatilized, add 145ml water and 1.0ml hydrochloric acid, and heat until the water is completely volatilized;
[0036] (3) Wash the product several times with water, put it in a vacuum drying oven at 85℃ for 7.5h, then put it in a muffle furnace at 610℃ for 2.8h to obtain sepiolite / nano-TiO 2 Composite materials.
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