Ag3PO4/g-C3N4 Fenton catalytic material as well as preparation method and application thereof
A catalytic material, the technology of g-c3n4, is applied in the application field of high-efficiency degradation of tetracycline hydrochloride, can solve problems such as insufficient activity and iron sludge, and achieves the effects of improving catalytic oxidation activity, good repeatability and simple process
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Embodiment 1
[0034] First put urea in a muffle furnace and bake it at 550°C for 3 hours in an air atmosphere with a heating rate of 5°C / min to obtain g-C 3 N 4 . Then containing silver acetate and g-C 3 N 4 Dispersed in deionized water, where g-C 3 N 4 The mass ratio of sodium dihydrogen phosphate to silver acetate is 1:2.3. Stir in the dark for 1 hour, then add sodium dihydrogen phosphate solution to the above solution, and the molar ratio of sodium dihydrogen phosphate to silver acetate is 1:1.4. Sonicate for 1 hour under stirring and 100W power, centrifuge, and dry at 80°C for 12 hours to obtain Ag 3 PO 4 / g -C 3 N 4 Fenton-like catalytic materials.
[0035] Preparation of sample transmission electron microscope photos figure 1 shows that Ag 3 PO 4 The particle size is tens of nanometers to hundreds of nanometers, g-C 3 N 4 It is a sheet / layer structure. XRD results showed that Ag 3 PO 4 is a cubic phase.
Embodiment 2
[0037] First put urea in a muffle furnace and bake it at 550°C for 3 hours in an air atmosphere with a heating rate of 3°C / min to obtain g-C 3 N 4 . Then containing silver acetate and g-C 3 N 4 Dispersed in deionized water, where g-C 3 N 4 The mass ratio of sodium dihydrogen phosphate to silver acetate is 1:4. Stir in the dark for 1 hour, then add sodium dihydrogen phosphate solution to the above solution, and the molar ratio of sodium dihydrogen phosphate to silver acetate is 1:2. Sonicate for 1 hour under stirring and 100W power, centrifuge, and dry at 100°C for 8 hours to obtain Ag 3 PO 4 / g -C 3 N 4 Fenton-like catalytic materials.
Embodiment 3
[0039] First put melamine in a muffle furnace, and bake it at 600°C for 1 hour in an air atmosphere with a heating rate of 3°C / min to obtain g-C 3 N 4 . Then add silver nitrate and g-C 3 N 4 Dispersed in deionized water, where g-C 3 N 4 The mass ratio of sodium hydrogen phosphate to silver nitrate is 1:1. Stir in the dark for 2 hours, then add sodium hydrogen phosphate solution to the above solution, and the molar ratio of sodium hydrogen phosphate to silver nitrate is 1:1. Sonicate for 2 hours under stirring and 100W power, centrifuge, and dry at 90°C for 10 hours to obtain Ag 3 PO 4 / g -C 3 N 4 Fenton-like catalytic materials.
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