Method for rapidly synthesizing molecular sieve supported nanometer photocatalyst
A nano-photocatalyst and photocatalyst technology, applied in the field of environmental governance, can solve problems such as time-consuming, high energy consumption, and reduced catalyst activity, and achieve an effect that is conducive to conduction
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Embodiment 1
[0019] Take the SBA-15 powder and put it in an oven to bake to remove the impurities adsorbed in the pores of the molecular sieve. Add 1 g of SBA-15 to 20 mL of absolute ethanol and glacial acetic acid for ultrasonic dispersion for 10 minutes, then add the titanium dioxide precursor drop by drop, place the mixture in a negative pressure system, and use the capillary force of the molecular sieve mesoporous to dissolve the titanium dioxide precursor absorbed into the pores. After stirring for 1 hour under magnetic stirring conditions, the mixed liquid was transferred to a 70 mL polytetrafluoroethylene-lined hydrothermal reactor, and then placed in a microwave digestion apparatus (MDS-6, Shanghai, China) at 180 o C temperature for 30 minutes to synthesize TiO 2 / SBA-15. A certain amount of 1-hexanol and chloroauric acid solution (10 mg / mL) was added dropwise to TiO 2 In / SBA-15, the mixed liquid is placed in a negative pressure system, and the precursor of metal nanoparticles ...
Embodiment 2
[0021] Take the SBA-15 powder and put it in an oven to bake to remove the impurities adsorbed in the pores of the molecular sieve. Add 1 g of SBA-15 to 20 mL of absolute ethanol and glacial acetic acid for ultrasonic dispersion for 10 minutes, then add the titanium dioxide precursor drop by drop, place the mixture in a negative pressure system, and use the capillary force of the molecular sieve mesoporous to dissolve the titanium dioxide precursor absorbed into the pores. After stirring for 1 hour under magnetic stirring conditions, the mixed liquid was transferred to a 70 mL polytetrafluoroethylene-lined hydrothermal reactor, and then placed in a microwave digestion apparatus (MDS-6, Shanghai, China) at 180 o C temperature for 30 minutes to synthesize TiO 2 / SBA-15. A certain amount of 1-hexanol and chloroplatinic acid solution was added dropwise to TiO 2 In / SBA-15, the mixed liquid is placed in a negative pressure system, and the precursor of metal nanoparticles is sucke...
Embodiment 3
[0023] Take the SBA-15 powder and put it in an oven to bake to remove the impurities adsorbed in the pores of the molecular sieve. Add 1 g of SBA-15 to 20 mL of absolute ethanol and glacial acetic acid for ultrasonic dispersion for 10 minutes, then add the titanium dioxide precursor drop by drop, place the mixture in a negative pressure system, and use the capillary force of the molecular sieve mesoporous to dissolve the titanium dioxide precursor absorbed into the pores. After stirring for 1 hour under magnetic stirring conditions, the mixed liquid was transferred to a 70 mL polytetrafluoroethylene-lined hydrothermal reactor, and then placed in a microwave digestion apparatus (MDS-6, Shanghai, China) at 180 o C temperature for 30 minutes to synthesize TiO 2 / SBA-15. A certain amount of 1-hexanol and silver nitrate solution was added dropwise to TiO 2 In / SBA-15, the mixed liquid is placed in a negative pressure system, and the precursor of metal nanoparticles is sucked int...
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