Synthesis a microporous organic gelator and evaluation of organic solvents gelling properties and the separation of crude oil products from water

[Display omitted] •A new simple and efficient approach for the preparation of gelator.•A new organogelator containing various parts that participates in gelation.•Combination of macromolecule and supramolecular chemistry.•To introduce a new type of organogelator to biphasic-solvents. A new supramolecular and microporous organic gelator, 1-(6-isocyanato)-3-octadecylureahexyl-N-formyl supported on melamine-terephthaldehyde microporous organic framework (1,4-DMB@4Mel@8(ODUHNF)), has been synthesized that has a hydrophobic great tail, many urea functional groups and aromatic ring moieties. It is able to gelate some of organic solvents, especially substituted aromatic compounds in monophasic systems at very low concentrations. Moreover, gelator exhibits high gelation ability for crude oil products (gas, kerosene and diesel) in mono- and bi-phasic systems at very low concentrations. Interestingly, the gelator can be used in five runs of gelation processes without any reduction of its performance.