Method for preparing controllable photodegraded flexible indoor air purifying material
A technology for indoor air and purification materials, applied in chemical instruments and methods, catalyst activation/preparation, chemical/physical processes, etc., can solve the constraints of industrial production of flexible air purification functional materials, poor photocatalyst reusability, and no chemical bond cooperation To achieve the effect of efficient and rapid air purification, large surface area, and self-cleaning
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Embodiment 1
[0025] (1) 80 mL of a mixed solution of N-(beta-aminoethyl)-gama-aminopropyltrimethoxysilane and 2-methoxyethanol with a ratio of 3:1 of the mass of the configuration substance, silver nitrate in the mixed solution , stir vigorously until the silver nitrate is completely dispersed evenly, slowly add 10mL of 98% titanium tetraisopropoxide dropwise to the above solution, and under the action of vigorous stirring, gradually add 80mL of 2-methoxy A mixed solution of ethanol and water, after standing still to form a gel, put it in a vacuum oven and dry it at 65°C for 60 hours, then slowly reduce the pressure to 1100Pa, then raise the temperature to 140°C and dry it for 20 hours. catalyst powder. Wash the powder with deionized water under the action of ultrasonic waves for 3 hours, then filter with filter paper, wash the filtered powder twice with a mixed solution of deionized water and methanol, filter, and place the filtered powder in a blast oven at 40°C After drying for 1 hour,...
Embodiment 2
[0034] (1) 90mL of N-(beta-aminoethyl)-gama-aminopropyltrimethoxysilane and 2-methoxyethanol mixed solution with a ratio of 2:1, and silver nitrate was added to the mixed solution , stir vigorously until the silver nitrate is completely dispersed and uniform, slowly add 15mL of 98% titanium tetraisopropoxide dropwise to the above solution, and under the action of vigorous stirring, gradually add 90mL of 2-methoxy A mixed solution of ethanol and water, after standing still to form a gel, put it in a vacuum drying oven and dry it at 70°C for 66 hours, the pressure slowly drops to 1150Pa, and then the temperature is raised to 145°C and dried for 22 hours to obtain a light catalyst powder. Wash the powder with deionized water under the action of ultrasonic waves for 4.5h, then filter with filter paper, wash the filtered powder twice with a mixed solution of deionized water and methanol, filter, and place the filtered powder in a blast oven at 45°C After drying under high temperat...
Embodiment 3
[0043] (1) 100 mL of a mixture of N-(beta-aminoethyl)-gama-aminopropyltrimethoxysilane and 2-methoxyethanol with a ratio of 1:1 of the mass of the preparation, and nitric acid was added to the mixture Silver, stir vigorously until the silver nitrate is completely dispersed evenly, slowly add 20mL of 98% titanium tetraisopropoxide dropwise to the above solution, and under the action of vigorous stirring, gradually add 100mL of 2- The mixed solution of methoxyethanol and water, after statically forming a gel, is dried in a vacuum oven at 75°C for 72 hours, the pressure is slowly reduced to 1200Pa, and then the temperature is raised to 150°C and dried for 24 hours to prepare photocatalyst powder. Wash the powder with deionized water under the action of ultrasonic waves for 6 hours, then filter with filter paper, wash the filtered powder with a mixed solution of deionized water and methanol for 3 times, filter, and place the filtered powder in a blast oven at 50°C After drying fo...
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