A kind of preparation method of two-dimensional nano sheet carbon nitrogen material
A carbon-nitrogen material and two-dimensional nanotechnology, which is applied in the field of preparation of two-dimensional nanosheet carbon-nitrogen materials, can solve the problems of complex preparation process and uncontrollable shape, and achieve the effect of easy preparation method, easy control and low cost
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Embodiment 1
[0025] 1) Weigh the melamine powder into the crucible, cover the crucible to keep the sample in a semi-closed state, and put it into the muffle furnace. Heated to 550°C at a heating rate of 3.5°C / min and kept for 4 hours, then cooled to room temperature 25°C with the furnace to obtain solid block yellow g-C 3 N 4 ;
[0026] 2) The solid block yellow g-C obtained in step 1) 3 N 4 Grind into powder to obtain a yellow powder and store it;
[0027] 3) Weigh 1 g of the yellow powder prepared in step 2), and put it into a 50 ml beaker. Measure 40ml of ethanolamine and pour it into a beaker, and magnetically stir for 2 hours to fully disperse the yellow powder in ethanolamine to obtain a uniform suspension;
[0028] 4) The homogeneous suspension obtained in step 3) was transferred to the inner tank of the reaction kettle, sealed, put into an oven and kept at 200°C for 2 hours, and cooled to room temperature 25°C with the furnace to obtain the reaction product;
[0029] 5) The r...
Embodiment 2
[0032] 1) Weigh the melamine powder into the crucible, cover the crucible to keep the sample in a semi-closed state, and put it into the muffle furnace. Heated to 550°C at a heating rate of 3.5°C / min and kept for 4 hours, then cooled to room temperature 25°C with the furnace to obtain solid block yellow g-C 3 N 4 ;
[0033] 2) The solid block yellow g-C obtained in step 1) 3 N 4 Grind into powder to obtain a yellow powder and store it;
[0034] 3) Weigh 1 g of the yellow powder prepared in step 2) and put it into a 50 ml beaker. Measure 40ml of ethanolamine and pour it into a beaker, and stir it magnetically for 2 hours to fully disperse the yellow powder in ethanolamine to obtain a uniform suspension;
[0035] 4) The homogeneous suspension obtained in step 3) was transferred to the inner tank of the reaction kettle, sealed, put into an oven and kept at 200°C for 8h, and cooled to room temperature 25°C with the furnace to obtain the reaction product;
[0036] 5) The reac...
Embodiment 3
[0038] 1) Weigh the melamine powder into the crucible, cover the crucible to keep the sample in a semi-closed state, and put it into the muffle furnace. Heating to 550°C at a heating rate of 3.5°C / min and keeping it warm for 4 hours, then cooling to room temperature 25°C with the furnace to obtain solid block yellow g-C 3 N 4 ;
[0039] 2) The solid block yellow g-C obtained in step 1) 3 N 4 Grind into powder to obtain a yellow powder and store it;
[0040] 3) Weigh 1 g of the yellow powder prepared in step 2) and put it into a 50 ml beaker. Measure 40ml of ethanolamine and pour it into a beaker, and stir it magnetically for 2 hours to fully disperse the yellow powder in ethanolamine to obtain a uniform suspension;
[0041] 4) The homogeneous suspension obtained in step 3) was transferred to the inner tank of the reaction kettle, sealed, put into an oven and kept at 150°C for 6 hours, and cooled to room temperature 25°C with the furnace to obtain the reaction product;
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