公开(公告)号：US11479482B1

公开(公告)日：2022-10-25

申请号：US17828591

申请日：2022-05-31

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Mohd Yusuf Khan ,  Abuzar Khan ,  Aasif Helal ,  Zain H. Yamani

IPC: C02F1/28 ,  B01J20/22 ,  C07C63/307 ,  C07D249/14

Abstract: A method of water uptake is provided. The method includes contacting a hydrogen-bonded organic framework (HOF) with water to form a mixture where the HOF comprises hydrogen bonded units of trimesic acid and guanazole. The HOF has a sheet structure, where the sheets form an intercrossed macroporous network with pores on a surface. The HOF absorbs at least a portion of the water in the mixture.

公开(公告)号：US11472779B1

公开(公告)日：2022-10-18

申请号：US17743531

申请日：2022-05-13

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Mohd Yusuf Khan ,  Abuzar Khan ,  Aasif Helal ,  Zain H. Yamani

IPC: C07D251/54 ,  C07C211/51 ,  C07D249/14

Abstract: A hydrogen-bonded organic framework (HOF) and a method of making the HOF. The HOF has at least one amine substituted organic linker and at least one carboxylic acid-based organic linker. The HOF is prepared by dissolving the linkers separately in water and mixing the aqueous solutions, without using any organic solvents, additional catalysts, or any other reagents.

公开(公告)号：US11529621B1

公开(公告)日：2022-12-20

申请号：US17831961

申请日：2022-06-03

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Aasif Helal ,  Mohammed Fettouhi ,  Md. Eyasin Arafat ,  Mohd Yusuf Khan ,  Mohammed Ahmed Sanhoob

IPC: B01J31/16 ,  C07D263/52 ,  B01J38/54 ,  C07D263/22

Abstract: A method of fixating CO2 to form a substituted oxazolidinone is described. The method includes mixing a nickel-based metal-organic framework (Ni-MOF) catalyst of formula [Ni3(BTC)2(H2O)3]·(DMF)3(H2O)3, a cocatalyst, an aromatic amine, and at least one epoxide to form a reaction mixture, and further contacting the reaction mixture with a gas stream containing carbon dioxide to react the carbon dioxide in the gas stream with the epoxide and the aromatic amine to form a substituted oxazolidinone mixture. The method further includes adding a polar protic solvent to the substituted oxazolidinone mixture, centrifuging, and filtering to produce a recovered Ni-MOF; and further washing the recovered Ni-MOF with an organochloride solvent and drying for at least 5 hours to produce a recycled Ni-MOF.

公开(公告)号：US12179142B1

公开(公告)日：2024-12-31

申请号：US18765778

申请日：2024-07-08

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Mohd Yusuf Khan ,  Bosirul Hoque

IPC: B01D53/22 ,  B01D53/04 ,  B01J20/22 ,  B01J20/28

Abstract: A method of separating a gas mixture, including contacting the gas mixture with a membrane and passing a portion of the gas mixture through the membrane. The portion of the gas mixture that passes through the membrane includes carbon dioxide. The membrane includes a poly(ether-block-amide) (PEBAX) and a covalent organic framework (COF). The COF is an optionally substituted COF-316 and the COF is dispersed in a matrix of the PEBAX to form the membrane. The membrane includes 0.1-5 wt. % of the COF relative to a total weight of the membrane.

公开(公告)号：US11745171B1

公开(公告)日：2023-09-05

申请号：US17825397

申请日：2022-05-26

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Abuzar Khan ,  Mohd Yusuf Khan

IPC: B01J31/06 ,  B01J35/02 ,  B01J35/10 ,  C25B11/048 ,  C25B11/049 ,  B01J35/00 ,  C25B1/04 ,  C25B1/55

CPC classification number: B01J31/063 ,  B01J35/004 ,  B01J35/0033 ,  B01J35/023 ,  B01J35/026 ,  B01J35/1014 ,  B01J35/1019 ,  C25B1/04 ,  C25B1/55 ,  C25B11/048 ,  C25B11/049

Abstract: A method of preparing a photocatalyst. The method includes a sulfone-containing conjugated polyimide obtained by solvothermally imidizing 3-sulfonyldianiline 1,4,5, 8-naphthalenetetracarboxylic dianhydride with poly (amic acid) (PAA). The photocatalyst of the present disclosure can be used in an electrochemical cell for water oxidation processes.