No abstract

No abstract

In the title compound, C17H18N4O2S·H2O, the thio­urea derivative is almost planar, with an r.m.s. deviation for the non-H atoms of 0.057 Å. The hydroxyl groups lie to the same side of the mol­ecule as the thione S atom, a conformation that allows the formation of intra­molecular O—H⋯S and O—H⋯N hydrogen bonds. In the crystal structure, the thio­urea and water mol­ecules self-assemble into a two-dimensional array by a combination of Owater—H⋯Ohydrox­yl, N—H⋯Owater and Owater—H⋯S hydrogen bonds and C—H⋯π inter­actions.

Membrane technology for water treatment is growing due to the increased demand for clean water and the stringent standard for water quality. Nanofiltration (NF) is widely used in membranes for water treatment due to lower energy consumption and higher flux rates. The application was not limited to only water treatment, yet NF showed excellent potential for solvent nanofiltration application. The utilization of MOF materials for the preparation of NF membranes to produce composite membranes has attracted more attention among researchers due to the advantages offered by the material. Zeolitic imidazolate framework-8 (ZIF-8) membrane has been considered a promising MOF membrane with its capabilities and promising performance due to the small aperture size of the compounds and the stability towards harsh chemical condition. The purpose of this review is to present the synthesis approaches on the preparation of ZIF-8 membranes and the application of ZIF-8 membrane for NF application. The challenges and prospects of ZIF-8 membranes are also discussed to further stimulate the development and the application of ZIF-8 membrane for NF.

No abstract

No abstract

No abstract

No abstract