Carbon nitride/tungsten trioxide two-dimensional composite Z-type photocatalytic material as well as preparation method and application thereof
A photocatalytic material, tungsten trioxide technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve undiscovered problems
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Embodiment 1
[0042] The preparation method is as follows:
[0043] (1) Add 12g of urea into a 50mL porcelain crucible, 550°C, 5°C·min -1 Calcined for 2h under the condition of heating rate, and ground to obtain g-C 3 N 4 powder; take 50 mg of the powder in a porcelain boat, and then at 520 ° C, 5 ° C min -1 Calcined for 3 hours under the condition of heating rate to obtain ultra-thin carbon nitride (CN / NS);
[0044] (2) The ultra-thin product is dispersed in 40mL deionized water and 15mL methanol solution, and then an appropriate amount of 0.08mol L -1 H 2 PtCl 6 Solution, ultrasonically dispersed for 5 minutes, the above suspension was irradiated under a high-pressure mercury lamp for 3 hours, centrifuged, washed, and dried to obtain 1 wt% Pt-loaded carbon nitride (Pt-CN / NS);
[0045] (3) Take 0.5000g of Na 2 WO 4 2H 2 O was dissolved in 60 mL of deionized water, and then 22 mL of HCl solution (3.0 M) was added dropwise with stirring to obtain a light yellow floc, and 0.4500 g of...
Embodiment 2
[0051] (1) Add 12g of urea into a 50mL porcelain crucible, 550°C, 5°C·min -1 Calcined for 2h under the condition of heating rate, and ground to obtain g-C 3 N 4 powder; take 50mg of the powder in a porcelain boat, and then at 520 ° C, 5 ° C min -1 Calcined for 3 hours under the condition of heating rate to obtain ultra-thin carbon nitride (CN / NS);
[0052] (2) The ultra-thin product is dispersed in 40mL deionized water and 15mL methanol solution, and then an appropriate amount of 0.08mol L -1 H 2 PtCl 6 Solution, ultrasonically dispersed for 5 minutes, the above suspension was irradiated under a high-pressure mercury lamp for 3 hours, centrifuged, washed, and dried to obtain 1 wt% Pt-loaded carbon nitride (Pt-CN / NS);
[0053] (3) Take 0.5000g of Na 2 WO 4 2H 2 O was dissolved in 60 mL of deionized water, and then 22 mL of HCl solution (3.0 M) was added dropwise with stirring to obtain a light yellow floc, and 0.4500 g of (NH 4 ) 2 C 2 o 4 ·H 2 O, stir until the so...
Embodiment 3
[0056] (1) Add 12g of urea into a 50mL porcelain crucible, 550°C, 5°C·min -1 Calcined for 2h under the condition of heating rate, and ground to obtain g-C 3 N 4 powder; take 50mg of the powder in a porcelain boat, and then at 520 ° C, 5 ° C min -1 Calcined for 3 hours under the condition of heating rate to obtain ultra-thin carbon nitride (CN / NS);
[0057] (2) The thin product is dispersed in 40mL deionized water and 15mL methanol solution, and then add an appropriate amount of 0.08mol L -1 H 2 PtCl 6 Solution, ultrasonically dispersed for 5 minutes, the above suspension was irradiated under a high-pressure mercury lamp for 3 hours, centrifuged, washed, and dried to obtain 1 wt% Pt-loaded carbon nitride (Pt-CN / NS);
[0058] (3) Take 0.5000g of Na 2 WO 4 2H 2 O was dissolved in 60 mL of deionized water, and then 22 mL of HCl solution (3.0 M) was added dropwise with stirring to obtain a light yellow floc, and 0.4500 g of (NH 4 ) 2 C 2 o 4 ·H 2 O, stir until the solu...
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