Ultra-thin g-C3N4 layer loaded and wrapped UiO-66 compound, preparation method and photocatalytic application thereof
A technology of uio-66 and g-c3n4, which is applied in the field of preparing ultra-thin g-C3N4 layer to load and wrap UiO-66 composites, can solve the problems of reducing active site exposure, affecting photocatalytic performance, reducing surface area, etc. Increased transmission distance, short processing time, and low operational difficulty
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Embodiment 1
[0030] 190.3 mg of ZrCl 4 and 133mg of H 2 BDC was dissolved in 81.7mL of DMF solution, then 4.6g of acetic acid was added and ultrasonicated for 20min, then stirred for 2h. The mixed solution was transferred to a 150 mL autoclave and heated in an oven at 120 °C for 24 h. After natural cooling at room temperature, it was centrifuged and washed three times with DMF and methanol, and dried overnight in an oven at 80°C to obtain UiO-66.
[0031] Put 2.0 g of melamine on the bottom of the crucible, and the prepared UiO-66 on the porous support in the middle of the crucible, and then put the crucible in a muffle furnace and heat it at 350 ° C for 30 min to obtain g-C 3 N 4 @UiO-66.
Embodiment 2
[0033] 190.3 mg of ZrCl 4 and 133mg of H 2 BDC was dissolved in 81.7mL of DMF solution, then 4.6g of acetic acid was added and ultrasonicated for 20min, then stirred for 2h. The mixed solution was transferred to a 150 mL autoclave and heated in an oven at 120 °C for 24 h. After natural cooling at room temperature, it was centrifuged and washed three times with DMF and methanol, and dried overnight in an oven at 80°C to obtain UiO-66.
[0034] Put 2.0g of melamine on the bottom of the crucible, and put the prepared UiO-66 on the porous support in the middle of the crucible, then place the crucible in a muffle furnace at 350°C for 1h to obtain g-C 3 N 4 @UiO-66.
Embodiment 3
[0036] 190.3 mg of ZrCl 4 and 133mg of H 2 BDC was dissolved in 81.7mL of DMF solution, then 4.6g of acetic acid was added and ultrasonicated for 20min, then stirred for 2h. The mixed solution was transferred to a 150 mL autoclave and heated in an oven at 120 °C for 24 h. After natural cooling at room temperature, it was centrifuged and washed three times with DMF and methanol, and dried overnight in an oven at 80°C to obtain UiO-66.
[0037] Put 2.0 g of melamine on the bottom of the crucible, and the prepared UiO-66 on the porous support in the middle of the crucible, and then put the crucible in a muffle furnace at 350 ° C for 2 h to obtain g-C 3 N 4 @UiO-66.
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