Double-functional Beta-FeOOH/eg-C3N4 composite nanomaterial and preparation method and application thereof
A composite nanomaterial, eg-c3n4 technology, applied in hydrogen/syngas production, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of acid consumption, iron leaching, small specific surface area, etc., and achieve simple and easy operation. performance, mild reaction conditions, and low cost
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Embodiment 1
[0023] (1)eg-C 3 N 4 preparation of
[0024] Take 18g of melamine in a crucible, place it in a muffle furnace, heat it up to 550°C at a heating rate of 5°C / min, and calcinate for 4 hours to obtain yellow Bulk g-C 3 N 4 . Take 6g g-C 3 N 4 In a crucible, add an appropriate amount of water to sonicate for 1 hour, then dry in an oven at 120°C for 2 hours, then place it in a muffle furnace and heat it to 550°C, continue to calcine for 4 hours, and obtain eg-C after cooling 3 N 4 .
[0025] (2)β-FeOOH / eg-C 3 N 4 preparation of
[0026] Take 100mg of eg-C 3 N 4 Put the powder into a 100ml beaker, then add 50ml of deionized water, and then adjust the pH to 2 with 6mol / L hydrochloric acid. Then add 142mg of FeCl 3 ·6H 2 After O, it was sonicated for 6 hours, centrifuged, and the product was washed three times with ethanol and pure water, respectively, and dried in an oven at 60°C for 12 hours.
[0027] The morphology, structure and composition of the product were chara...
Embodiment 2
[0030] (1)eg-C 3 N 4 preparation of
[0031] Take 6g of melamine in a crucible, place it in a muffle furnace, heat it up to 550°C at a heating rate of 5°C / min, and calcinate for 4 hours to obtain yellow eg-C 3 N 4 . Take 3g-C 3 N 4 In a crucible, add an appropriate amount of water for ultrasonication for 1 hour, then dry in an oven at 120°C for 2 hours, then place it in a muffle furnace and heat it to 550°C, continue calcination for 5 hours, and obtain eg-C after cooling 3 N 4 .
[0032] (2)β-FeOOH / eg-C 3 N 4 preparation of
[0033] Take 50mg eg-C 3 N 4 Put the powder into a 100ml beaker, add 50ml of deionized water, then use 6mol / L hydrochloric acid to adjust the pH of the solution to 1, after ultrasonication for 1h, add 94mg of FeCl 3 ·6H 2 O, continue to sonicate for 4 hours, centrifuge, wash the product with ethanol and pure water three times, and put it in a 60°C oven to dry for 12 hours.
Embodiment 3
[0035] (1)eg-C 3 N 4 preparation of
[0036] Take 9g of melamine in a crucible, place it in a muffle furnace, heat it up to 550°C at a rate of 5°C / min, and calcinate for 4 hours to obtain yellow Bulk g-C 3 N 4 . Take 3g-C 3 N 4 In a crucible, add an appropriate amount of water to sonicate for 1 hour, then dry in an oven at 120°C for 2 hours, then place it in a muffle furnace and heat it to 550°C, continue to calcine for 4 hours, and obtain eg-C after cooling 3 N 4 .
[0037] (2)β-FeOOH / eg-C 3 N 4 preparation of
[0038] Take 200mg of eg-C 3 N 4 Put the powder into a 100ml beaker, add 100ml of deionized water, and then adjust the pH of the solution to 0.5 with 6mol / L hydrochloric acid. After ultrasonication for 1h, add 378mg of FeCl 3 ·6H 2 O, ultrasonication for 6 hours, centrifugation, the product was washed three times with ethanol and pure water, and dried in an oven at 60°C for 12 hours.
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