Molybdenum carbide and strontium titanate composite photocatalytic hydrolytic hydrogen production catalyst and preparation method thereof
A technology of composite photocatalysis and strontium titanate, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of low efficiency of photocatalytic water splitting for hydrogen production, reduce the recombination rate, improve the Efficiency, the effect of solving inefficiencies
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Embodiment 1
[0028] (1) Get 1.5 grams of ammonium molybdate solid particles in a 30 milliliter deionized water reaction vessel and stir for 30 minutes to make it dissolve completely, then add 4.8 grams of glucose under continuous stirring, and then continue stirring for 1.5 hours to obtain a transparent solution;
[0029] (2) Transfer the transparent solution obtained in step (1) to a polytetrafluoroethylene reactor with a stainless steel substrate, and then crystallize it for 12 hours at a temperature of 200 degrees Celsius. After the reactor is naturally cooled to room temperature, take out the polytetrafluoroethylene reactor. The reaction solution in the tetrafluoroethylene reactor was washed and centrifuged 4 times with deionized water after discarding the supernatant, and then washed and centrifuged 2 times with absolute ethanol; then dried at 80 degrees Celsius for 12 hours;
[0030] (3) The dried product obtained in step (2) was roasted for 3 hours under the protection of nitrogen an...
Embodiment 2
[0039] Steps (1)-(9) are the same as in Example 1;
[0040] (10) 0.0025 gram of molybdenum carbide prepared in step (4) and 0.5 gram of strontium titanate prepared in step (9) were put into a ball mill for ball milling for 2.5 hours to obtain molybdenum carbide and molybdenum carbide according to the present invention. Strontium titanate composite photocatalytic water splitting hydrogen production catalyst 0.5%wtMo 2 C / TiSrO 3 . 0.05 grams of the catalyst, 90 milliliters of water and 10 milliliters of triethanolamine with a mass fraction of more than 99% were used to form a mixed solution, which was tested by the Beijing Powerline Optical Hydrogen Production System and the Shimadzu GC-81 chromatograph. The catalytic photolysis water rate of the photocatalyst prepared by the invention is 4.75mmolh -1 g -1 The hydrogen production rate is 0.625mmolh higher than that of pure strontium titanate -1 g -1 There is a significant improvement, and the improvement effect exceeds 7.6...
Embodiment 3
[0042] Steps (1)-(9) are the same as in Example 1;
[0043] (10) 0.005 gram of molybdenum carbide prepared in step (4) and 0.5 gram of strontium titanate prepared in step (9) were put into a ball mill for ball milling for 2.5 hours to obtain molybdenum carbide and molybdenum carbide according to the present invention. Strontium Titanate Composite Photocatalytic Water Splitting Hydrogen Production Catalyst 1.0%wtMo 2 C / TiSrO 3 . 0.05 grams of the catalyst, 90 milliliters of water and 10 milliliters of triethanolamine with a mass fraction of more than 99% were used to form a mixed solution, which was tested by the Beijing Powerline Optical Hydrogen Production System and the Shimadzu GC-81 chromatograph. The catalytic photolysis water rate of the photocatalyst prepared by the invention is 6.46mmolh -1 g -1 The hydrogen production rate is 0.625mmolh higher than that of pure strontium titanate -1 g -1 There is a significant improvement, and the improvement effect exceeds 10.3...
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