a nano w 0.4 mo 0.6 o 3 Preparation method of high-performance photocatalyst
A photocatalyst and high-performance technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of less research on tungsten-molybdenum double metal oxides and complex processes, and achieve improved Photocatalytic activity, simple preparation method, and easy-to-achieve effects
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Embodiment 1
[0022] 1) Prepare 0.5mol / L of C 6 h 12 o 6 ·H 2 O (glucose) distilled water, 0.2mol / L Na 2 WO 4 2H 2 O distilled water, 0.2mol / L Na 2 MoO 4 2H 2 O distilled aqueous solution and 0.01mol / L polyoxyethylene fatty alcohol ether distilled aqueous solution.
[0023] 2) Dilute the above solution in molar ratio C 6 h 12 o 6 ·H 2 O:Na 2 WO 4 2H 2 O:Na 2 MoO 4 2H 2O=2:1:1 ratio mixed, stirred at 40°C for 30min to obtain a mixed solution. Then add polyoxyethylene fatty alcohol ether distilled aqueous solution to the mixed solution, and stir at 40 for 20 minutes. Wherein, the volume of the polyoxyethylene fatty alcohol ether distilled aqueous solution is 1% of the volume of the mixed solution.
[0024] 3) Adjust the pH to 1 with hydrochloric acid with a concentration of 2 mol / L.
[0025] 4) Then pour it into a polytetrafluoroethylene-lined high-pressure hydrothermal reactor, keeping the volume filling ratio at 50%.
[0026] 5) Put the sealed reaction kettle into a ho...
Embodiment 2
[0032] 1) Prepare 0.8mol / L of C 6 h 12 o 6 ·H 2 O distilled water, 0.5mol / L Na 2 WO 4 2H 2 O distilled water, 0.5mol / L Na 2 MoO 4 2H 2 O distilled aqueous solution and 0.03mol / L polyoxyethylene fatty alcohol ether distilled aqueous solution.
[0033] 2) Dilute the above solution in molar ratio C 6 h 12 o 6 ·H 2 O:Na 2 WO 4 2H 2 O:Na 2 MoO 4 2H 2 O=3:1:1 ratio mixed, stirred at 45°C for 25min to obtain a mixed solution. Then, distilled aqueous solution of polyoxyethylene fatty alcohol ether was added to the mixed solution, and stirred at 45° C. for 15 minutes. Wherein, the volume of polyoxyethylene fatty alcohol ether distilled aqueous solution is 1.5% of the mixed solution volume.
[0034] 3) Adjust the pH to 1.5 with hydrochloric acid with a concentration of 2 mol / L.
[0035] 4) Then pour it into a polytetrafluoroethylene-lined high-pressure hydrothermal reactor, keeping the volume filling ratio at 60%.
[0036] 5) Put the sealed reactor into a homogeneo...
Embodiment 3
[0040] 1) Prepare 1mol / L of C 6 h 12 o 6 ·H 2 O distilled water, 0.8mol / L Na 2 WO 4 2H 2 O distilled water, 0.8mol / L Na 2 MoO 4 2H 2 O distilled aqueous solution and 0.05mol / L polyoxyethylene fatty alcohol ether distilled aqueous solution.
[0041] 2) Dilute the above solution in molar ratio C 6 h 12 o 6 ·H 2 O:Na 2 WO 4 2H 2 O:Na 2 MoO 4 2H 2 O=4:1:1 ratio mixed, stirred at 50°C for 20min to obtain a mixed solution. Then add polyoxyethylene fatty alcohol ether distilled aqueous solution to the mixed solution, and stir at 50° C. for 10 min. Wherein, the volume of polyoxyethylene fatty alcohol ether distilled aqueous solution is 2% of the mixed solution volume.
[0042] 3) Adjust pH=2 with hydrochloric acid with a concentration of 3 mol / L.
[0043] 4) Then pour it into a polytetrafluoroethylene-lined high-pressure hydrothermal reactor, keeping the volume filling ratio at 70%.
[0044] 5) Put the sealed reaction kettle into a homogeneous hydrothermal reacto...
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