A kind of preparation method of composite photocatalyst
A catalyst and composite light technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as no literature reports, and achieve the effect of easy drying and removal
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Embodiment 1
[0026] Weigh 5,000 mg of melamine into a crucible, cover the crucible, put it into an intelligent programmable muffle furnace, heat from room temperature to 550°C, set the heating rate to 4°C / min, and continue heating at 550°C for 3 hours, then Cool naturally to room temperature to obtain g-C 3 N 4 . Prepare a 5 wt % aqueous solution of hydrazine hydrate, then add 500 mg of g-C under magnetic stirring 3 N 4 After stirring for 10 minutes, 200 mg of ferric nitrate was added, and stirring was continued for 20 minutes; the mixture was put into an oven and heated at 100° C. for 15 hours to obtain the final product.
[0027] Adopt German Bruker-AXS company D8 ADVANCE polycrystalline X-ray diffractometer, analyze the phase of the product made, such as figure 1 shown. The result shows: the product made in embodiment 1 is g-C 3 N 4 , α-Fe 2 o 3 and γ-Fe 2 o 3 compound.
Embodiment 2
[0029] Weigh 5,000 mg of melamine into a crucible, cover the crucible, put it into an intelligent programmable muffle furnace, heat from room temperature to 550°C, set the heating rate to 4°C / min, and continue heating at 550°C for 3 hours, then Cool naturally to room temperature to obtain g-C 3 N 4 ; Prepare 5wt% aqueous solution of hydrazine hydrate, then add 500 mg of g-C under magnetic stirring 3 N 4 After stirring for 10 minutes, 300 mg of ferric nitrate was added, and stirring was continued for 20 minutes; the mixture was put into an oven and heated at 100° C. for 15 hours to obtain the final product.
[0030] Adopt German Bruker-AXS company D8 ADVANCE polycrystalline X-ray diffractometer, analyze the phase of the product made, such as figure 2 shown. The result shows: the product made by embodiment 2 is g-C 3 N 4 , α-Fe 2 o 3 and γ-Fe 2 o 3 compound.
Embodiment 3
[0032] Weigh 5,000 mg of melamine into a crucible, cover the crucible, put it into an intelligent programmable muffle furnace, heat from room temperature to 550°C, set the heating rate to 4°C / min, and continue heating at 550°C for 3 hours, then Cool naturally to room temperature to obtain g-C 3 N 4 ; prepare a 5 wt % aqueous solution of hydrazine hydrate, then add 500 mg of g-C under magnetic stirring 3 N 4 After stirring for 10 minutes, 400 mg of ferric nitrate was added, and stirring was continued for 20 minutes; the mixture was put into an oven and heated at 100° C. for 15 hours to obtain the final product.
[0033] Adopt German Bruker-AXS company D8 ADVANCE polycrystalline X-ray diffractometer, analyze the phase of the product made, such as image 3 shown. The result shows: the product made by embodiment 3 is g-C 3 N 4 , α-Fe 2 o 3 and γ-Fe 2 o 3 compound.
[0034] 2. Test the photocatalytic performance of the above composite materials:
[0035] The photocataly...
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