A kind of preparation method of graphite phase carbon nitride photocatalyst
A graphite phase carbon nitride and phase carbon nitride light technology, which is applied in the field of photocatalytic materials, can solve the problems that the photocatalytic performance needs to be further improved, and achieve the effect of high hydrogen production
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[0024] The present invention provides a method for preparing a graphite-phase carbon nitride catalyst described in the above scheme, comprising the following steps: mixing urea and ascorbic acid, and heat-treating the obtained mixture to obtain a graphite-phase carbon nitride photocatalyst.
[0025] The invention mixes urea and ascorbic acid to obtain a mixture.
[0026] In the present invention, the mass ratio of urea to ascorbic acid is preferably 50g:(5-100)mg, more preferably 50g:(10-70)mg, most preferably 50g:30mg. The present invention has no special requirements on the sources of the urea and ascorbic acid, and commercially available products well known to those skilled in the art can be used. The present invention has no special requirements on the mixing method, and any method that can uniformly mix the two can be used.
[0027] After the mixed material is obtained, the present invention heat-treats the mixed material to obtain a graphite-phase carbon nitride photoca...
Embodiment 1
[0034] Mix 50g of urea and 30mg of ascorbic acid evenly, pour the mixture into an alumina porcelain ark, put the porcelain ark in a muffle furnace, raise the temperature from room temperature to 500°C at a rate of 10°C / min, and keep it warm for 2 hours, then Cool down to room temperature with the furnace to obtain a graphite phase carbon nitride photocatalyst.
[0035] figure 1 Be the X-ray diffraction pattern (XRD) of the graphitic phase carbon nitride photocatalyst that embodiment 1 prepares; By figure 1 It can be seen that the photocatalyst prepared in the present invention maintains the original structure and properties of pure carbon nitride;
[0036] figure 2 It is the Fourier transform infrared spectrum (FTIR) figure of the graphite phase carbon nitride photocatalyst prepared by embodiment 1 and pure graphite phase carbon nitride; figure 2 It can be seen that the cyano group peak appears in the photocatalyst of the present invention, but the pure graphite phase car...
Embodiment 2
[0039] Mix 50g of urea and 5mg of ascorbic acid evenly, pour the mixture into an alumina porcelain ark, put the porcelain ark in a muffle furnace, raise the temperature from room temperature to 450°C at a rate of 2°C / min, and keep it warm for 1h, then Cool down to room temperature with the furnace to obtain a graphite phase carbon nitride photocatalyst.
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