US 11,926,774 B1
Hydrogen-bonded organic framework nanosheet, preparation method and application thereof
Zhongyue Li, Shandong (CN); Xinxin Zhang, Shandong (CN); Kun Liu, Shandong (CN); and Wei Liu, Shandong (CN)
Assigned to YANTAI UNIVERSITY, Shandong (CN)
Filed by Yantai University, Shandong (CN)
Filed on Sep. 25, 2023, as Appl. No. 18/474,008.
Claims priority of application No. 202211176768.5 (CN), filed on Sep. 26, 2022.
Int. Cl. C09K 11/07 (2006.01); C07C 235/88 (2006.01); G01N 21/64 (2006.01)
CPC C09K 11/07 (2013.01) [C07C 235/88 (2013.01); G01N 21/643 (2013.01); C09K 2211/1007 (2013.01); G01N 2021/6432 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A preparation method of a hydrogen-bonded organic framework nanosheet, comprising following steps:
mixing and dissolving 1,2,4,5-tetrakis (4-carboxyphenyl) benzene with N,N-dimethylformamide in a container, placing the container uncapped in a large container filled with water, sealing the large container, followed by standing and heating, suction filtering to obtain colorless crystals, drying to obtain a solid material, grinding and dispersing the solid material in a solvent, performing ultrasonication in an ice-water bath condition, centrifuging to discard supernatant, and drying to obtain the hydrogen-bonded organic framework nanosheet;
wherein the 1,2,4,5-tetrakis (4-carboxyphenyl) benzene is mixed with the N, N-dimethylformamide, and heated to dissolve solid, so a concentration of the 1,2,4,5-tetrakis (4-carboxyphenyl) benzene is 1-50 mg/mL;
a temperature for the standing and heating is more than or equal to 100° C.;
a duration for the standing is 1-7 days;
after the suction filtering to obtain the colorless crystals, a temperature for the drying is 60-200° C.