A kind of bismuth tungstate/carbon nitride/bismuth phosphate composite photocatalyst and its preparation method and application
A technology of carbon nitride and bismuth phosphate, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., to achieve the effects of simple process, good photocatalytic performance, and mild reaction conditions
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0038] Step 1: the raw material 3mmol Na 2 WO 4 and 6mmol Bi(NO 3 ) 3 Dissolve in deionized water, stir vigorously for 20min to obtain a white mixed solution, the concentration of Bi element in the mixed solution is 0.133mol / L, ultrasonically disperse the mixed solution in an ultrasonic instrument with a power of 400W for 30min, and then at room temperature with 300rad / L Min speed magnetic stirring for 2 hours, and finally transferred to a hydrothermal reaction kettle with a microwave power of 300W, microwave hydrothermal reaction at 180°C for 1 hour, and a white mixed solution was obtained. The precipitate was washed three times with absolute ethanol and deionized water, and dried at 80 °C for 15 h to obtain white Bi 2 WO 6 Powder;
[0039] Step 2: Weigh melamine and urea respectively according to the mass ratio of 1:1, mix them evenly and add them into deionized water to obtain a mixture, the concentration of melamine and urea in the mixture is 0.333g / mL, and stir the m...
Embodiment 2
[0044] Step 1: the raw material 3mmol Na 2 WO 4 and 6mmol Bi(NO 3 ) 3 Dissolve in deionized water and stir vigorously for 20 minutes to obtain a white mixed solution. The concentration of Bi element in the mixed solution is 0.14mol / L. The mixed solution is ultrasonically dispersed in an ultrasonic instrument with a power of 500W for 20min, and then at room temperature at 200rad / L Magnetically stirred at a speed of min for 3 hours, and finally transferred to a hydrothermal reaction kettle with a microwave power of 300W. Microwave hydrothermal reaction was carried out at 200°C for 0.5 hours to obtain a white mixed solution. The precipitate was washed three times with absolute ethanol and deionized water, and dried at 70 °C for 16 h to obtain white Bi 2 WO 6 Powder;
[0045] Step 2: Weigh melamine and urea respectively according to the mass ratio of 1:1.1, mix them evenly and add them into deionized water to obtain a mixture. The concentration of melamine and urea in the mix...
Embodiment 3
[0050] Step 1: the raw material 3mmol Na 2 WO 4 and 6mmol Bi(NO 3 ) 3 Dissolve in deionized water, stir vigorously for 20min to obtain a white mixed solution, the concentration of Bi element in the mixed solution is 0.145mol / L, ultrasonically disperse the mixed solution in an ultrasonic instrument with a power of 450W for 25min, and then at room temperature with 250rad / L Magnetically stirred at a speed of 2.5 hours, and finally transferred to a hydrothermal reaction kettle with a microwave power of 300W. Microwave hydrothermal reaction was carried out at 190°C for 0.6 hours to obtain a white mixed solution. The mixed solution was left to stand for stratification, and the supernatant was removed. , the precipitate was washed three times with absolute ethanol and deionized water, and dried at 75 °C for 17 h to obtain white Bi 2 WO 6 Powder;
[0051] Step 2: Weigh melamine and urea respectively according to the mass ratio of 1:1.2, mix them evenly and add them into deionized...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More