Anatase phase and TiO2(B) composite nanostructure titanium dioxide photocatalyst and preparation method thereof
A composite nanostructure, titanium dioxide technology, applied in the direction of physical/chemical process catalysts, titanium dioxide, titanium oxide/hydroxide, etc., to achieve the effect of low cost, simple process, and expanding the field of catalysts
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Embodiment example 1
[0032] At room temperature, 5ml of isopropyl titanate was added dropwise to 3ml of hydrochloric acid, and stirred for 15min to obtain solution A. Add 1ml of P123 dropwise to 10ml of ethanol, stir for 15min to obtain solution B. Then solution B was added dropwise to solution A, and stirred for 30 min to obtain solution C. Then, 90ml of ethylene glycol was added to the solution and stirred for 5min to obtain solution D. The resulting solution was put into a polytetrafluoroethylene reactor at 150° C. for 20 h. The hydrothermal reaction product is centrifuged, washed, and dried to obtain the product, labeled Et1, and the XRD and Raman images of the product show that the pure TiO 2 (B), if figure 1 and 2 shown. Its specific surface area is 265.19m 2 g -1 . 20mg of prepared titanium dioxide powder and 80mL of 20% methanol solution (64mL of deionized water and 16mL of methanol) were added to the reaction vessel. Before the reaction, nitrogen was passed through the vessel for ...
Embodiment example 2
[0034] At room temperature, 5ml of isopropyl titanate was added dropwise to 3ml of hydrochloric acid, and stirred for 15min to obtain solution A. Add 1ml of P123 dropwise to 20ml of ethanol, stir for 15min to obtain solution B. Then solution B was added dropwise to solution A, and stirred for 30 min to obtain solution C. Then add 80ml ethylene glycol to the solution, stir for 5min to obtain solution D. The resulting solution was put into a polytetrafluoroethylene reactor at 150° C. for 20 h. The hydrothermal reaction product was centrifuged, washed and dried to obtain the product, labeled Et2. The XRD and Raman patterns of the product show that the pure TiO 2 (B), if figure 1 and 2 shown. Its specific surface area is 288.162m 2 g -1. 20 mg of prepared titanium dioxide powder and 80 mL of 20% methanol solution (64 mL of deionized water and 16 mL of methanol) were added to the reaction container. Before the reaction, nitrogen gas was passed through the container for hal...
Embodiment example 3
[0035] At room temperature, 5ml of isopropyl titanate was added dropwise to 3ml of hydrochloric acid, and stirred for 15min to obtain solution A. Add 1ml of P123 dropwise to 50ml of ethanol, stir for 15min to obtain solution B. Then solution B was added dropwise to solution A, and stirred for 30 min to obtain solution C. Then add 50ml of ethylene glycol to the solution, stir for 5min to obtain solution D. The resulting solution was put into a polytetrafluoroethylene reactor at 150° C. for 20 h. The hydrothermal reaction product is centrifuged, washed, and dried to obtain the product, marked Et5, and the Raman diagram of the product shows anatase phase and TiO 2 (B) composite structure titanium dioxide photocatalyst, such as figure 2 As shown, its anatase content is 5.9%. Its specific surface area is 288.21m 2 g -1 . 20mg of prepared titanium dioxide powder and 80mL of 20% methanol solution (64mL of deionized water and 16mL of methanol) were added to the reaction vessel...
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