Preparation method for graphite-phase carbon nitride photocatalytic material
A phase carbon nitride photocatalytic material technology, applied in the direction of nitrogen and non-metallic compounds, can solve the problems of no changes in multiple scales, no multiple shapes and scales, limited application range, etc., to achieve enhanced structural effects , the effect of many active sites and simple process
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[0022] The invention provides a kind of preparation method of graphite phase carbon nitride photocatalytic material, it comprises the steps:
[0023] 1) Select biomass material as a template, and pre-treat the biomass material, the pre-treatment includes washing the template under ethanol and distilled water, taking it out and drying it, and then soaking it in NaOH solution for 2-4 hours; The biomass material is selected from at least one of a one-dimensional biomass material, a two-dimensional biomass material and a three-dimensional biomass material;
[0024] 2) Further, in a non-oxygen inert atmosphere, immerse the template treated in step 2) into the TEOS solution and heat-preserve it in a water bath within the temperature range of 50-55°C for 6-10 hours;
[0025] 3) Calcining the template treated in step 2) at a heating rate of 1-2°C / min, the calcination temperature is 550°C-650°C, and the calcination time is 10-12h;
[0026] 4) Then add the above-mentioned processed tem...
Embodiment 1
[0031] One-dimensional viruses or bacteria are selected as raw materials, washed with ethanol for 3 times, then soaked in NaOH solution for 1 hour, then taken out and dried. The treated and dried virus powder was fully mixed with the prepared TEOS solution, and then kept in a water bath at 50°C for 6 hours, and further heated to 550°C at a rate of 1°C / min under a non-oxygen inert atmosphere, and kept for 12 hours. Then put it into the cyanamide solution, keep it at 50°C for 2h under vacuum, heat it to 550°C at a rate of 2.3°C / min under a non-oxygen inert atmosphere, and keep it at 550°C for 4h, then add 4mol / L NH 4 HF 2 solution, soaked for 48 hours, washed with ethanol and distilled water, and then dried to obtain a one-dimensional photocatalytic material with good light absorption and catalytic performance.
Embodiment 2
[0033] The camellia petals were selected, washed with ethanol three times, then soaked in NaOH solution for 1 hour, then taken out and dried. The treated and dried camellia petals were fully mixed with the prepared TEOS solution, and then kept in a 50°C water bath for 6h, and further heated to 650°C at a rate of 1.5°C / min under a non-oxygen inert atmosphere, and kept for 10h. Then put it into the cyanamide solution, keep it at 70°C for 2-3h under vacuum conditions, heat it to 550°C at a heating rate of 2.3°C / min under a non-oxygen inert atmosphere, and keep it at 550°C for 2h, then put 4mol / L NH 4 HF 2 The two-dimensional photocatalytic material with good light absorption and catalytic performance can be obtained by soaking in aqueous solution for 48 hours, washing with ethanol and distilled water, and then drying.
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