| abstract |
The invention belongs to the field of photocatalysis, and particularly relates to a preparation method of a photocatalytic material based on a mesoporous structure, which comprises the following steps: step 1, putting titanium dioxide microspheres into absolute ethyl alcohol for ultrasonic reaction for 30-50min, and airing to obtain clean titanium dioxide microspheres; step 2, adding titanium tetrachloride into absolute ethyl alcohol, and uniformly stirring to obtain titanium alcohol solution; then soaking the clean titanium dioxide microspheres into titanium alcohol solution, taking out after 10-20min and drying to obtain coated titanium dioxide microspheres; step 3, adding diphenyldichlorosilane into the toluene solution, stirring at low temperature until the diphenyldichlorosilane is completely dissolved to obtain silane toluene solution, then uniformly spraying the silane toluene solution on the coated titanium dioxide microspheres, and drying to obtain secondary coated titanium dioxide microspheres; and 4, placing the titanium dioxide microspheres subjected to secondary coating in a sealed reaction kettle, slowly spraying water vapor, standing for 10-20min, and heating for 2-4h to obtain the photocatalytic material. |