A vacuum-assisted preparation of three-layer g-c 3 no 4 /tio 2 Method for Coaxial Composite Nanostructures
A composite nanostructure, vacuum-assisted technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., to achieve the effect of improving photocatalytic efficiency
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Embodiment 1
[0028] At room temperature, prepare 50 mL of 13 mol L -1Add 1.0 g of P25 and stir well for 2 hours to form a uniform white suspension. The white suspension was transferred to a polytetrafluoroethylene hydrothermal kettle with a volume of 100 mL, packaged and placed in a blast drying oven, and the temperature was set at 150 °C for 24 h. After the reaction was completed, it was naturally cooled to room temperature, and the white precipitate in the reaction kettle was taken out, and washed with deionized water until neutral. The white paste was placed in a vacuum oven at 80 °C for 6 h, and then ground to powder with agate for use. Add 1.0 g of this powder to the pre-configured 750 mL concentration of 0.1mol L -1 in dilute hydrochloric acid, fully stirred for 60 min and then allowed to stand for 60 min. Then, the supernatant was discarded, and the white precipitate was washed to neutral with deionized water. The white paste was placed in a vacuum oven at 80°C for 6 h, and then...
Embodiment 2
[0031] At room temperature, prepare 50 mL of 13 mol L -1 Add 1.0 g of P25 and stir well for 2 hours to form a uniform white suspension. The white suspension was transferred to a polytetrafluoroethylene hydrothermal kettle with a volume of 100 mL, packaged and placed in a blast drying oven, and the temperature was set at 150 °C for 24 h. After the reaction was completed, it was naturally cooled to room temperature, and the white precipitate in the reaction kettle was taken out, and washed with deionized water until neutral. The white paste was placed in a vacuum oven at 80 °C for 6 h, and then ground to powder with agate for use. Add 1.0 g of this powder to the pre-configured 750 mL concentration of 0.1mol L -1 in dilute hydrochloric acid, fully stirred for 60 min and then allowed to stand for 60 min. Then, the supernatant was discarded, and the white precipitate was washed to neutral with deionized water. The white paste was placed in a vacuum oven at 80°C for 6 h, and the...
Embodiment 3
[0034] At room temperature, prepare 50 mL of 13 mol L -1 Add 1.0 g of P25 and stir well for 2 hours to form a uniform white suspension. The white suspension was transferred to a polytetrafluoroethylene hydrothermal kettle with a volume of 100 mL, packaged and placed in a blast drying oven, and the temperature was set at 150 °C for 24 h. After the reaction was completed, it was naturally cooled to room temperature, and the white precipitate in the reaction kettle was taken out, and washed with deionized water until neutral. The white paste was placed in a vacuum oven at 80 °C for 6 h, and then ground to powder with agate for use. Add 1.0 g of this powder to the pre-configured 750 mL concentration of 0.1 mol L -1 in dilute hydrochloric acid, fully stirred for 60 min and then allowed to stand for 60 min. Then, the supernatant was discarded, and the white precipitate was washed to neutral with deionized water. The white paste was placed in a vacuum oven at 80°C for 6 h, and th...
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