Ordered mesoporous Al-SBA-15 loaded sulfated zirconium oxide solid acid material, and preparation and application thereof
A technology of al-sba-15 and zirconia, applied in catalyst activation/preparation, fatty acid esterification, liquid carbon-containing fuel, etc., can solve problems such as low specific surface area, low acid content of solid acid materials, and limitations in practical applications , to achieve high catalytic activity
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Embodiment 1
[0053] Under vigorous stirring at 38°C, add 3.25g of ethyl orthosilicate to 50mL of 2.0mol / L hydrochloric acid solution dissolved with 1.6g of P123 and 0.82g of citric acid, and maintain the temperature to continue stirring for 24 hours, then filter the reaction solution with suction , washing, and preparing a white solid of the ordered mesoporous SBA-15 material that encapsulates surfactant micelles and whose pore walls are rich in Si-OH species.
[0054] Add the white solid obtained from the above self-assembly into 30 mL of 0.5 mol / L aluminum isopropoxide aqueous solution, adjust the pH of the reaction mixture to 2.0 with dilute hydrochloric acid, stir at room temperature for 30 min, and place the reaction mixture in a closed autoclave Inside, heated to 180°C for hydrothermal treatment for 24 hours, the reaction product was taken out, filtered, washed, and dried to prepare an ordered mesoporous Al-SBA-15 material wrapped with surfactant micelles and uniformly grafted with Al...
Embodiment 2
[0072] Under strong stirring at 32°C, add 3.02g of methyl orthosilicate to 45mL of 2.0mol / L hydrochloric acid solution dissolved with 2.0g of P123 and 1.65g of glacial acetic acid, and maintain the temperature for 12h with stirring, and filter the reaction solution with suction , washing, and preparing a white solid of the ordered mesoporous SBA-15 material that encapsulates surfactant micelles and whose pore walls are rich in Si-OH species.
[0073] Add the white solid obtained from the above self-assembly into 25 mL of 1.0 mol / L aluminum nitrate aqueous solution, adjust the pH value of the reaction mixture to 2.4 with dilute hydrochloric acid, stir at room temperature for 30 min, and place the reaction mixture in a closed autoclave. Heating to 150°C for hydrothermal treatment for 24 hours, taking out the reaction product, suction filtration, washing, and drying to prepare a white solid of ordered mesoporous Al-SBA-15 material wrapped with surfactant micelles and uniformly gra...
Embodiment 3
[0082] Under strong stirring at 40°C, add 0.72g of white carbon black to 40mL of 1.0mol / L hydrochloric acid solution dissolved with 2.1g of P123 and 0.62g of tartaric acid, and maintain the temperature to continue stirring for 24h, then filter and wash the reaction solution. A white solid of ordered mesoporous SBA-15 material was prepared which encapsulated surfactant micelles and the pore walls were rich in Si-OH species.
[0083] Add the white solid obtained from the above self-assembly into 30 mL of 1.5 mol / L aluminum tert-butoxide aqueous solution, adjust the pH of the reaction mixture to 2.5 with dilute hydrochloric acid, stir at room temperature for 30 min, and place the reaction mixture in a closed autoclave Inside, heated to 160°C for hydrothermal treatment for 24 hours, the reaction product was taken out, filtered, washed, and dried to prepare an ordered mesoporous Al-SBA-15 material wrapped with surfactant micelles and uniformly grafted with Al atoms on the pore wall ...
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Abstract
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