Preparation method and application of environment-friendly efficient toluene scavenger
A scavenger and environmentally friendly technology, applied in the field of environmental functional materials, can solve the problems of low utilization rate of visible light and achieve the effect of improving photocatalytic performance, improving utilization and enhancing utilization
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[0036] The preparation method of a kind of environment-friendly and high-efficiency toluene scavenger of the present invention comprises the following steps:
[0037] (1) adding the inorganic titanium source into the organic solvent, and stirring at the temperature of the water bath to make the precursors evenly mixed and fully reacted to form a sol;
[0038] (2) adding the sol obtained in step (1) into the inner lining of the reactor and putting it into an oven to prepare halogen-modified TiO 2 catalyst powder;
[0039] (3) repeatedly washing the catalyst prepared in step (2) with the same organic solvent in step (1), and then placing the catalyst in a vacuum drying oven to dry.
[0040] (4) The dried catalyst in step (3) is fully ground to destroy the soft agglomeration of nanomaterials to obtain halogen-modified TiO with uniform particle size 2 Catalyst; weigh the catalyst and place it in pure water, mix it evenly, and disperse it with a dispersing device to prepare an en...
Embodiment 1
[0050] First, in a 10 °C water bath, 20 mL of TiCl was added at a rate of 1 d / s 4 Add vigorously stirred 30mL of absolute ethanol, the solution gradually turned into a light yellow sol, continue to stir for 20min, transfer the sol to the lining of the 100mL reaction kettle, and the sol accounts for about 15% of the volume of the reaction kettle. The reaction kettle was placed in an oven at 180°C for 16h. After the reaction kettle was naturally cooled to room temperature, the material was washed three times with absolute ethanol, and then dried at 60° C. for 12 hours to obtain the catalyst. The catalyst was removed and ground into nanopowder using a laboratory stirred ball mill. Weigh 0.5 g of catalyst, disperse it in 100 mL of pure water, and ultrasonically disperse for 30 min. Finally, an environment-friendly high-efficiency toluene scavenger is obtained. The X-ray diffraction pattern of the catalyst ( figure 1 ), we successfully prepared Cl-TiO 2 , and has a high degree...
Embodiment 2
[0052] First, in a 10 °C water bath, 20 mL of TiCl was added at a rate of 1 d / s. 4 Add vigorously stirred 30mL of absolute ethanol, the solution gradually turned into a light yellow sol, continue to stir for 20 min, transfer the sol to the lining of the 100mL reaction kettle, and the sol accounts for about 15% of the volume of the reaction kettle. The reaction kettle was placed in an oven at 180°C for 16h. After the reaction kettle was naturally cooled to room temperature, the material was washed three times with absolute ethanol, and then dried at 60° C. for 12 hours to obtain the catalyst. The catalyst was removed and ground into nanopowder using a laboratory stirred ball mill. 1 g of catalyst was weighed, dispersed in 100 mL of pure water, and dispersed by ultrasonic wave for 30 min. Finally, an environment-friendly high-efficiency toluene scavenger is obtained.
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