A preparation method of one-dimensional nano-titanium dioxide photocathode protection composite material with conductive mica as carrier
A nano-titanium dioxide, photocathode protection technology, applied in nanotechnology, metal material coating technology, liquid chemical plating, etc., can solve the problems of inability to conduct electrons quickly and effectively, mica is not a good conductor of electrons, etc., and achieve excellent electron migration efficiency, preventing stacking and stacking, and improving utilization
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Embodiment 1
[0026] 1) Under the condition of -5~0℃ ice bath, add 30mL of 3mol / L titanium tetrachloride to 50mL of deionized water and stir for 0.5h to obtain a transparent solution. Disperse 7g of conductive mica powder in the ice bath with stirring. In the above solution, the reaction was stirred at 70°C for 0.5h; filtered and washed with deionized water to the filtrate pH=5-6, the filter cake was dried at 60°C for 4h, and then placed in a muffle furnace at 400°C Calcined under the conditions for 2h;
[0027] 2) Take 2.5g of the composite powder obtained in step 1) and disperse in 50mL of water, raise the temperature of the system to 85℃; add 0.2g of sodium stearate anionic surfactant while stirring, stir for 1h, cool to room temperature naturally, and pump Filter, wash, dry in an oven at 60℃ for 4h;
[0028] 3) Take 0.1g of the modified powder obtained in step 2) and add it to a mixed solution of 1mL of 3mol / L titanium tetrachloride, 30mL of 36wt% hydrochloric acid and 30mL of deionized wat...
Embodiment 2
[0030] 1) Under the condition of -5~0℃ ice bath, add 20mL 4mol / L titanium tetrachloride to 60mL deionized water and stir for 1h to obtain a transparent solution. Under ice bath stirring, disperse 9.6g conductive mica powder in In the above solution, the reaction was stirred at 50℃ for 2h; filtered and washed with deionized water until the filtrate pH=5-6, the filter cake was dried at 40℃ for 8h, and then placed in a muffle furnace at 550℃ Calcination for 1h;
[0031] 2) Disperse 7g of the composite powder obtained in step 1) in 70mL of water, raise the system temperature to 90℃; add 0.45g sodium laurate anionic surfactant while stirring, stir for 0.5h, cool to room temperature naturally, and filter with suction , Washing, drying in an oven at 40℃ for 8h;
[0032] 3) Take 0.2g of the modified powder obtained in step 2) and add it to 1mL 4mol / L titanium tetrachloride, 30mL 36wt% hydrochloric acid and 30mL deionized water mixed solution, hydrothermally at 210℃ for 4h, and cool to roo...
Embodiment 3
[0034] 1) Under the condition of -5~0℃ ice bath, add 10mL titanium tetrachloride with a concentration of 5mol / L to 70mL deionized water and stir for 45min to obtain a transparent solution. Under ice bath stirring, 11g conductive mica powder is dispersed in the above In the solution, the reaction was stirred at 60℃ for 1.5h; filtered and washed with deionized water to the filtrate pH=5~6, the filter cake was dried at 50℃ for 6h, then placed in a muffle furnace at 500℃ Calcination for 1.5h;
[0035] 2) Disperse 7 g of the composite powder obtained in step 1) in 90 mL of water, and raise the temperature of the system to 90°C; add 0.52 g of sodium laurate anionic surfactant while stirring, stir for 1 hour, cool to room temperature naturally, filter with suction, Wash, dry in an oven at 50℃ for 6h;
[0036] 3) Take 0.2g of the modified powder obtained in step 2) and add it to a mixed solution of 1mL of 5mol / L titanium tetrachloride, 30mL of 36wt% hydrochloric acid and 30mL of deionized...
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