Photocatalyst antibacterial mildew-proof porous ceramic, preparation method and application thereof
A photocatalyst antibacterial and porous ceramic technology, applied in the field of indoor materials, can solve the problems of poor dispersion, narrow light response range, low reactivity, etc., and achieve the effect of lasting antibacterial and mildew resistance
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preparation example 1
[0046] This preparation example provides a kind of Ag-Zn doped TiO 2 sol, the Ag-Zn doped TiO 2 The sol is prepared by the following preparation method:
[0047] (a) In 80 parts of absolute ethanol, add 3 parts of tetrabutyl titanate and stir for 10 minutes, then add 0.2 parts of polyvinylpyrrolidone and continue stirring for 30 minutes to obtain mixed solution A; mix 1 mL of deionized water and 24 mL of Mix water and ethanol with stirring for 10 minutes, drop glacial acetic acid to adjust the pH of the solution to 3.5, then add 0.05 parts of silver nitrate and 0.05 parts of zinc nitrate, stir for 30 minutes until completely dissolved, and obtain mixed solution B;
[0048] (b) Add the mixed solution B dropwise to the mixed solution A at a rate of 60 drops / min, keep stirring for 30min, and age at 25°C for 24h to obtain Ag-Zn doped TiO 2 Sol.
preparation example 2
[0050] This preparation example provides a kind of Ag-Zn doped TiO 2 sol, the Ag-Zn doped TiO 2 The sol is prepared by the following preparation method:
[0051] (a) In 100 parts of absolute ethanol, add 5 parts of tetrabutyl titanate and stir for 10 minutes, then add 0.3 parts of polyvinylpyrrolidone and continue stirring for 30 minutes to obtain mixed solution A; mix 3 mL of deionized water and 40 mL of Mix water and ethanol with stirring for 10 minutes, drop glacial acetic acid to adjust the pH value of the solution to 3, then add 0.04 parts of silver nitrate and 0.06 parts of zinc nitrate, stir for 30 minutes until completely dissolved, and obtain the mixed solution B;
[0052] (b) Add the mixed solution B dropwise to the mixed solution A at a rate of 60 drops / min, keep stirring for 30min, and age at 25°C for 24h to obtain Ag-Zn doped TiO 2 Sol.
preparation example 3
[0054] This preparation example provides a kind of Ag-Zn doped TiO 2 sol, the Ag-Zn doped TiO 2 The sol is prepared by the following preparation method:
[0055] (a) In 50 parts of absolute ethanol, add 1 part of tetrabutyl titanate and stir for 10 minutes, then add 0.1 part of polyvinylpyrrolidone and continue stirring for 30 minutes to obtain a mixed solution A; mix .5 mL of deionized water and 10 mL of Mix and stir with absolute ethanol for 10 minutes, drop glacial acetic acid to adjust the pH value of the solution to 4, then add 0.06 parts of silver nitrate and 0.04 parts of zinc nitrate, stir for 30 minutes until completely dissolved, and obtain the mixed solution B;
[0056] (b) Add the mixed solution B dropwise to the mixed solution A at a rate of 60 drops / min, keep stirring for 30min, and age at 25°C for 24h to obtain Ag-Zn doped TiO 2 Sol.
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