Preparation of a nitrogen-doped carbon anode and its application in catalytic wet air oxidation
A nitrogen-doped carbon and nitrogen-doped technology, applied in the fields of oxidized water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., to avoid secondary pollution and achieve the effect of high catalytic activity
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Embodiment 1
[0026] Add 2.0g of ethylenediaminetetraacetic acid disodium salt into 30mL of deionized water, dissolve to form a transparent solution, transfer it to a 50mL hydrothermal reaction kettle, and then immerse 0.4g of hydrogen peroxide-treated carbon felt in the solution, React at 160°C for 14 hours; take out the carbon felt after cooling, wash it three times alternately with deionized water and absolute ethanol, and dry it in an oven at 80°C for 12 hours; then put the dried carbon felt into a tube furnace, nitrogen Heat treatment at 700°C for 1 hour under protection to obtain a nitrogen-doped carbon felt material.
[0027] In the single-chamber three-electrode system, under normal temperature and pressure, the prepared nitrogen-doped carbon felt material was used as the anode, the platinum wire was used as the counter electrode, and the calomel electrode was used as the reference electrode. -1 Na 2 SO 4 As electrolyte, pH 7.0, 30mL·s -1 Air is blown in from the bottom of the re...
Embodiment 2
[0029] Add 5.0g of ethylenediaminetetraacetic acid disodium salt into 30mL of deionized water, dissolve to form a transparent solution, transfer it to a 50mL hydrothermal reaction kettle, and then immerse 0.4g of hydrogen peroxide-treated carbon felt in the solution, React at 200°C for 8 hours; take out the carbon felt after cooling, wash it three times alternately with deionized water and absolute ethanol, and dry it in an oven at 80°C for 12 hours; then put the dried carbon felt into a tube furnace, nitrogen Heat treatment at 300°C for 5 hours under protection to obtain a nitrogen-doped carbon felt material.
[0030] In the single-chamber three-electrode system, under normal temperature and pressure, the prepared nitrogen-doped carbon felt material was used as the anode, the platinum wire was used as the counter electrode, and the calomel electrode was used as the reference electrode. -1 Na 2 SO 4 As electrolyte, pH is 3.0, 30mL·s -1 Air is blown in from the bottom of the...
Embodiment 3
[0032] Add 1.0g of ethylenediaminetetraacetic acid disodium salt into 30mL of deionized water, dissolve to form a transparent solution, transfer it to a 50mL hydrothermal reaction kettle, and then immerse 0.4g of carbon fiber treated with hydrogen oxide in the solution, and React at 120°C for 24 hours; take out the carbon fiber after cooling, wash it three times alternately with deionized water and absolute ethanol, and dry it in an oven at 80°C for 12 hours; then put the dried carbon felt into a tube furnace under nitrogen protection Heat treatment at 900°C for 1 hour to obtain nitrogen-doped carbon fiber material.
[0033] In the single-chamber three-electrode system, under normal temperature and pressure, the prepared nitrogen-doped carbon fiber material was used as the anode, the platinum wire was used as the counter electrode, and the calomel electrode was used as the reference electrode. -1 Na 2 SO 4 As electrolyte, pH 5.0, 30mL·s -1 Air is blown in from the bottom of...
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