A kind of ordered macroporous titanium dioxide and its preparation method
A titanium dioxide and order technology, applied in the field of order macroporous titanium dioxide and its preparation, can solve the problems of poor conductivity, limited use, low rate capacity, etc., and achieve the effects of improving electronic conductivity, easy hydrolysis, and simple synthesis method.
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Embodiment 1
[0028] The preparation method of ordered macroporous titanium dioxide comprises the following steps:
[0029] (1) Preparation of titanium dioxide precursor solution: add 1.0 g of titanium tetrachloride to 50 g of absolute ethanol, stir evenly, then add 0.7 g of titanium tetraisopropoxide while stirring, and stir evenly to obtain a titanium dioxide precursor solution;
[0030] (2) Preparation of PS-COOH sphere suspension: disperse 1.0 g of PS-COOH spheres in 250 W ultrasonic for 2 hours in 10 g of absolute ethanol to obtain PS-COOH sphere suspension, wherein the diameter of PS-COOH spheres is about 200 nanometers;
[0031] (3) Preparation of ordered macroporous titanium dioxide: Mix the titanium dioxide precursor solution and PS-COOH ball suspension together, stir evenly to obtain suspension C, let it stand at room temperature for 36 hours, and dry it in a blast oven at 65°C for 48 hours, The dried product was placed in the center of a high-temperature tube furnace, and the tem...
Embodiment 2
[0042] The preparation method of ordered macroporous titanium dioxide comprises the following steps:
[0043] (1) Preparation of titanium dioxide precursor solution: 0.5 g of titanium tetrachloride was added to 40 g of absolute ethanol, stirred evenly, then 1.5 g of titanium tetraisopropoxide was added while stirring, and stirred evenly to obtain a titanium dioxide precursor solution;
[0044] (2) Preparation of PS-COOH sphere suspension: disperse 1.3g of PS-COOH spheres in 250W ultrasonic for 2 hours in 15g of absolute ethanol to obtain PS-COOH sphere suspension, wherein the diameter of PS-COOH spheres is about 100 nanometers;
[0045] (3) Preparation of ordered macroporous titanium dioxide: Mix the titanium dioxide precursor solution and PS-COOH ball suspension together, stir evenly to obtain suspension C, let it stand at room temperature for 36 hours, and dry it in a blast oven at 65°C for 48 hours, The dried product was placed in the center of a high-temperature tube furna...
Embodiment 3
[0049] The preparation method of ordered macroporous titanium dioxide comprises the following steps:
[0050] (1) Preparation of titanium dioxide precursor solution: 0.8g of titanium tetrachloride was added to 45g of absolute ethanol, stirred evenly, then 1.3g of titanium tetraisopropoxide was added while stirring, and stirred evenly to obtain a titanium dioxide precursor solution;
[0051] (2) Preparation of PS-COOH sphere suspension: disperse 1.2g of PS-COOH spheres in 13g of absolute ethanol by ultrasonication at 250W for 1.5 hours to obtain PS-COOH sphere suspension, wherein the diameter of PS-COOH spheres is 500nm;
[0052] (3) Preparation of ordered macroporous titanium dioxide: Mix the titanium dioxide precursor solution and PS-COOH ball suspension together, stir evenly to obtain suspension C, let it stand at room temperature for 36 hours, and dry it in a blast oven at 65°C for 48 hours, The dried product was placed in the center of a high-temperature tube furnace, and ...
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