Prepn process of multilayer porous active compound TiO2 photocatalyst
A photocatalyst and active technology, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. It can solve the problems of weak carrier binding, activity and application range, and the impact of repeated use cycles.
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Embodiment 1
[0030] Preparation of Multilayer Porous Active Composite TiO Using Activated Carbon Particles as Support 2 Photocatalyst, its method step is:
[0031] 1. Take 2000 grams of activated carbon and put it into deionized water, heat it at 60-100 ° C for 10 hours, filter the water, and dry it in vacuum for later use;
[0032] 2. Take 2000ml of analytically pure absolute ethanol, add 50ml of glacial acetic acid, add 30ml of analytically pure nitric acid, add 1 g of polyethylene glycol with a molecular weight of 2000, add 1 g of silver nitrate, stir and disperse for 3 hours, add analytically pure butyl titanate 500ml, blended evenly to obtain a sol, divided into 4 equal amounts of sol for later use;
[0033] 3. Take 1 part of the sol obtained in step 2, add 15ml of deionized water and stir evenly for 5 minutes, add the clean and dried activated carbon particle carrier material in step 1, stir evenly, place it for 3 hours, and place it in an alumina ceramic crucible. Put it in a hous...
Embodiment 2
[0039] Preparation of Multilayer Porous Active Composite TiO Using Non-porous Metal Stainless Steel Mesh as Support 2 Photocatalyst, its preparation steps are:
[0040] 1. Take stainless steel mesh (60 mesh) reel 2m 2 , degreasing and decontaminating treatment according to the metal cleaning process, dry for later use; take 20 grams of soluble starch and add 80 ml of deionized water, stir well, then add 400 ml of deionized water, heat at 100 ° C to boil and gelatinize, and obtain 500 ml of gelatinization solution, cool After standby; take 100ml of analytically pure sulfuric acid and add 1900ml of deionized water to prepare 2000ml of sulfuric acid diluent for subsequent use;
[0041] 2. Take 1000ml of analytically pure absolute ethanol, add 50ml of glacial acetic acid, add 30ml of analytically pure nitric acid, add 1 g of polyethylene glycol with a molecular weight of 2000, add 1 g of cerium nitrate, stir and disperse for 3 hours, add analytically pure butyl titanate 500ml, a...
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