Preparation method of high-catalytic-activity loading type black titanium dioxide
A technology of black titanium dioxide and high catalytic activity, applied in the field of photocatalysis, can solve the problems of low adsorption performance of titanium dioxide, complex experimental materials, equipment, conditions, low adsorption performance, etc., to improve adsorption and photocatalysis, and facilitate industrial application. , the effect of increasing the number of holes
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Embodiment 1
[0029] The batching ratio of anatase nano titanium dioxide and molecular sieve is 1:2, respectively 5g, 10g, water solvent 35g, that is, the solid mass concentration is 30%, then add 5g thiourea dioxide to the suspension, and adjust the pH to be 8, mix The uniform reaction system was put into a high-energy ball mill, and the ball milling time was 30 minutes. After ball milling, the reactants were washed twice with acetone as a detergent, and dried in an oven at 25°C.
[0030] TiO was detected by XRD characterization 2 anatase
[0031] Weigh 1g of composite photocatalyst, use 10mg / L methylene blue solution as target pollutant to carry out photocatalytic performance test, the degradation rate after 2h reaches 89.75%.
Embodiment 2
[0033] The batching ratio of anatase nano titanium dioxide and molecular sieve is 1:5, respectively 5g, 25g, water solvent 70g, that is, the solid mass concentration is 30%, then add 5g thiourea dioxide to the suspension, and adjust the pH to be 8, mix The uniform reaction system was put into a high-energy ball mill, and the ball milling time was 30 minutes. After ball milling, the reactant was washed twice with acetone as a detergent, and dried at 25°C.
[0034] TiO was detected by XRD characterization 2 anatase
[0035] Weigh 1g of composite photocatalyst, use 10mg / L methylene blue solution as the target pollutant to carry out photocatalytic performance test, the degradation rate after 2h reaches 80.69%.
Embodiment 3
[0037] The batching ratio of anatase nano titanium dioxide and molecular sieve is 1:9, respectively 5g, 45g, water solvent 117g, that is, the solid mass concentration is 30%, then add 5g thiourea dioxide to the suspension, and adjust the pH to be 8, mix The uniform reaction system was put into a high-energy ball mill, and the ball milling time was 30 minutes. After ball milling, the reactants were washed twice with acetone as a detergent, and dried in an oven at 25°C.
[0038] TiO was detected by XRD characterization 2 anatase
[0039] Weigh 1g of composite photocatalyst, use 10mg / L methylene blue solution as the target pollutant to carry out photocatalytic performance test, the degradation rate after 2h reaches 86.67%.
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