A covalent triazine organic polymer visible light catalyst and its preparation and application
A covalent triazine and polymer technology, applied in the direction of organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of harsh preparation conditions and samples containing metal-containing inorganic salts Impurities and other problems, to achieve the effect of low production cost, high practical value and application prospects, and mild preparation conditions
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Embodiment 1
[0018] Under the condition of stirring at 0°C, take 10mL of trifluoromethanesulfonic acid and add it to 1.28g of terephthalonitrile, change the oil bath and raise the temperature to 30°C until the mixture becomes viscous and cannot be stirred. After standing for 3 days, Rinse and filter with 40 mL of dichloromethane, then wash with ammonia water until the pH is greater than 7, then add 50 mL of ammonia water, stir for 12 hours, wash with water and centrifuge until the pH is 7, and finally wash and centrifuge once with methanol to obtain a solid precipitate; the solid precipitate obtained above, Reflux with methanol at 90°C for 12h, then reflux with dichloromethane at 65°C for 12h, and vacuum dry at 80°C for 12h to obtain a covalent triazine organic polymer with a yield of 78.1%.
Embodiment 2
[0020] Under the condition of stirring at 0°C, take 10mL of trifluoromethanesulfonic acid and add it to 1.28g of terephthalonitrile, change the oil bath and raise the temperature to 30°C until the mixture becomes viscous and cannot be stirred. After standing for 3 days, Rinse and filter with 40 mL of dichloromethane, then wash with ammonia water until the pH is greater than 7, then add 50 mL of ammonia water, stir for 12 hours, wash with water and centrifuge until the pH is 7, and finally wash and centrifuge once with methanol to obtain a solid precipitate; the solid precipitate obtained above, Reflux with methanol at 100°C for 12h, then reflux with dichloromethane at 80°C for 12h, and vacuum dry at 80°C for 12h to obtain a covalent triazine organic polymer with a yield of 60.9%.
Embodiment 3
[0022] Under the condition of stirring at 0°C, take 40mL of trifluoromethanesulfonic acid and add it to 5.12g of terephthalonitrile, change the oil bath and raise the temperature to 30°C until the mixture becomes viscous and cannot be stirred. After standing for 3 days, Rinse and filter with 160mL dichloromethane, then wash with ammonia water until the pH is greater than 7, then add 200mL ammonia water, stir for 12 hours, wash with water and centrifuge until the pH is 7, and finally wash and centrifuge once with methanol to obtain a solid precipitate; the solid precipitate obtained above, Reflux with methanol at 90°C for 12h, then reflux with dichloromethane at 65°C for 12h, and vacuum dry at 80°C for 12h to obtain a covalent triazine organic polymer with a yield of 60.5%.
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