Preparation method of catalyst for photo-catalytically splitting water to produce hydrogen
A technology of photolysis of water to produce hydrogen and catalysts, applied in the field of nanomaterials, can solve the problems of weak visible light response, low hydrogen production efficiency, and high cost, and achieve the effects of low price, high hydrogen production efficiency, and high production efficiency
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[0021] Example 1
[0022] Add 10g of urea into a 50mL ceramic crucible with a lid, place the crucible in a muffle furnace, and raise the temperature from room temperature to 550°C at a rate of 2.5°C / min, and keep the temperature constant for 2h. After calcination, cool to room temperature, grind the sample in an agate mortar to obtain a yellow powder, namely g-C 3 N 4 Polymer material. Under nitrogen protection, weigh 108mgg-C 3 N 4 The polymer material was added to 120mL of freshly dried tetrahydrofuran solution, sonicated for 5min, and then 0.55g of metallic lithium and 5.08g of naphthalene were added to the dispersion. After the solution turned dark green, stirring was continued for 1h, and then the auto-injector was used for 10mL / h Add 1-bromododecane to the above-mentioned solution at a speed as fast as 1°C until the green color of the solution disappears, and continue the reaction for 12h under the protection of nitrogen. After the reaction, ethanol was added to the above ...
Example Embodiment
[0024] Example 2
[0025] Add 10g of urea into a 50mL ceramic crucible with a lid, place the crucible in a muffle furnace, and raise the temperature from room temperature to 550°C at a rate of 2.5°C / min, and keep the temperature constant for 2h. After calcination, cool to room temperature, grind the sample in an agate mortar to obtain a yellow powder, namely g-C 3 N 4 Polymer material. Under nitrogen protection, weigh 108mgg-C 3 N 4 The polymer material was added to 120mL of freshly dried tetrahydrofuran solution, sonicated for 5min, and then 0.55g of metallic lithium and 5.08g of naphthalene were added to the dispersion. After the solution turned dark green, stirring was continued for 1h, and then the auto-injector was used for 10mL / h Add 1-bromododecane to the above-mentioned solution at a speed as fast as 1°C until the green color of the solution disappears, and continue the reaction for 12h under the protection of nitrogen. After the reaction, ethanol was added to the above ...
Example Embodiment
[0026] Example 3
[0027] Add 10g of urea into a 50mL ceramic crucible with a lid, place the crucible in a muffle furnace, and raise the temperature from room temperature to 550°C at a rate of 2.5°C / min, and keep the temperature constant for 2h. After calcination, cool to room temperature, grind the sample in an agate mortar to obtain a yellow powder, namely g-C 3 N 4 Polymer material. Under nitrogen protection, weigh 368mgg-C 3 N 4 The polymer material was added to 120mL of freshly dried tetrahydrofuran solution, sonicated for 5min, and then 0.21g of metallic lithium and 2.56g of naphthalene were added to the dispersion. After the solution turned dark green, stirring was continued for 1h, and then the auto-injector was used for 10mL / h Add 1-bromo-n-hexane to the above solution at a speed of 0, and continue the reaction for 12 hours under the protection of nitrogen until the green of the solution disappears. After the reaction, ethanol was added to the above reaction to remove u...
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