Method for preparing sulfur-nitrogen co-doped porous carbon material by taking hydroquinonesulfonic acid potassium salt as activating agent
A technology of porous carbon materials and hydroquinone, applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., to achieve good adsorption characteristics, simplified preparation process, and high pore capacity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0040] The preparation steps of the sulfur and nitrogen co-doped porous carbon material in this example are as follows: 5.0 g of glucosamine hydrochloride was dissolved in 50 mL of water, and the formed transparent solution was added to a 100 mL stainless steel hydrothermal reaction kettle, and hydrothermally carbonized at 200 ° C for 6 hours . The obtained product was filtered, washed repeatedly with deionized water, and finally dried at 100 °C for 4 h. Take 1.0 g of the dried hydrothermal carbonization product and grind it evenly with 3.0 g of hydroquinone potassium sulfate. The resulting mixture is placed in a tube furnace and protected by nitrogen gas (60 mL / min). The temperature of the tube furnace was raised from room temperature to 900°C at a rate of 5°C / min and kept constant for 2 hours. After natural cooling, the product was treated with 10% hydrochloric acid, washed repeatedly with deionized water, and dried at 100° C. for 4 hours to obtain the final product.
[00...
Embodiment 2
[0043] The preparation steps of the sulfur-nitrogen co-doped porous carbon material of the present embodiment are as follows: 1.0g chitosan and 4.0g hydroquinone potassium sulfate are ground, and the ground mixture is placed in a tube furnace, under nitrogen protection ( 60 mL / min) the furnace temperature was raised from room temperature to 800°C at a rate of 5°C / min, and heated at a constant temperature of 800°C for 2 hours. After natural cooling, the product was treated with 10% hydrochloric acid, washed repeatedly with deionized water, and dried at 100° C. for 4 hours to obtain the final product.
[0044] The sulfur and nitrogen co-doped porous carbon material X-ray photoelectron energy spectrum N1s spectrogram that is prepared by chitosan and hydroquinone potassium sulfate according to the present embodiment is as follows image 3 As shown, its nitrogen content is 4.49wt%, which proves that the nitrogen element contained in the raw material can be used to carry out nitroge...
Embodiment 3
[0046] The preparation steps of the sulfur-nitrogen co-doped porous carbon material of the present embodiment are as follows: 1.0g chitosan and 3.0g hydroquinone potassium sulfate are ground, and the ground mixture is placed in a tube furnace, under the protection of nitrogen ( 60 mL / min) the furnace temperature was raised from room temperature to 900°C at a rate of 5°C / min, and heated at 900°C for 2 hours. After natural cooling, the product was treated with 10% hydrochloric acid, washed repeatedly with deionized water, and dried at 100° C. for 4 hours to obtain the final product.
[0047] The carbon dioxide adsorption performance test procedure of the sulfur and nitrogen co-doped porous carbon material prepared in this example is as follows: add 100 mg of carbon material into the test sample chamber, and heat it in vacuum at 250° C. for 3 hours to remove impurities such as moisture adsorbed on the surface. Place the test sample chamber in a constant temperature water bath at ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Specific surface area | aaaaa | aaaaa |
| Specific surface area | aaaaa | aaaaa |
| Pore volume | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More