Ionic Liquid-Based Colloidal Formulations for the Synthesis of Nano-MOFs: Applications in Gas Adsorption and Water Desalination

• DOI: 10.1021/acsami.1c10184
• Publication Date: 2021-08-21T14:09:16Z
• Authors: Sanjay Mehra; Veerababu Polisetti; Krishnaiah Damarla; Paramita Ray; Arvind Kumar
• Keywords: Microemulsion

Microemulsions (MEs) comprising choline dioctylsulfosuccinate [Cho][AOT], a biobased ionic liquid (IL) surfactant as an emulsifier, (R)-(+)-limonene (RL) nonpolar phase, and ethylene glycol (EG)/ethanolammonium formate (EOAF) organic solvent/low-viscosity IL polar component were constructed. Spontaneous aggregation of [Cho][AOT] was observed with negative ΔH form using isothermal titration calorimetry. The aggregates in RL showed critical micellar concentration (cmc) ∼5.49 mM, EG (cmc ∼3.99 mM), EOAF ∼1.56 these are further characterized by various techniques. These novel IL-based MEs have been used nanoreactors for the sustainable synthesis uniform nanosized metal–organic frameworks (N-MOFs), such MIL-53(Al), HKUST-1, UIO-66-NH2, ZIF-8, precise control over size morphology at room temperature. Characterization N-MOFs has performed scanning electron microscopy, powder X-ray diffraction, Fourier transform infrared spectroscopy. synthesized to prepare stable thin film nanocomposite nanofiltration membranes, suitable desalination brackish water excellent flux (31.8 LMH/bar) rejection (99.0%) divalent salts.