	US 12,226,759 B2
	Perylene imide and composite photocatalytic material thereof, preparation method therefor and application thereof in removing organic pollutants from water
Jianmei Lu, Suzhou (CN); and Najun Li, Suzhou (CN)
Assigned to SOOCHOW UNIVERSITY, Suzhou (CN)
Appl. No. 17/624,186
Filed by SOOCHOW UNIVERSITY, Suzhou (CN)
PCT Filed Nov. 8, 2020, PCT No. PCT/CN2020/127395 § 371(c)(1), (2) Date Dec. 30, 2021, PCT Pub. No. WO2021/120921, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 201911287975.6 (CN), filed on Dec. 15, 2019.
Prior Publication US 2022/0355284 A1, Nov. 10, 2022
Int. Cl. B01J 31/00 (2006.01); B01J 31/02 (2006.01); B01J 35/39 (2024.01); B01J 37/08 (2006.01); C02F 1/30 (2023.01)

CPC B01J 31/0247 (2013.01) [B01J 35/39 (2024.01); B01J 37/08 (2013.01); C02F 1/30 (2013.01); C02F 2305/10 (2013.01)]

3 Claims

1. A method of preparing a perylene imide comprising the following steps:

calcining melamine to obtain a melem;

mixing the melem, perylene tetracarboxylic dianhydride and a solvent to obtain a mixture, and

placing the mixture in an inert atmosphere to obtain perylene imide by a solvothermal reaction,

wherein the calcination is carried out in air and calcined at 400˜450° C. for 3-5 h, and the solvothermal reaction is carried out in inert gas at 180-200° C. for 72-120 h; and

wherein the solvent is a mixture of DMF and ethylene glycol, and a molar ratio of the melem to the perylene tetracarboxylic dianhydride is 2:3.