An Efficient Ultrasound Assisted Electrospinning Synthesis of a Novel Biodegradable Polymeric Ni-MOF Supported by PVA- Fibrous Network as an Efficient CH4 Adsorbent

Abstract In this study, Ni-MOF was synthesized via ultrasound irradiation under optimal conditions, which included an ultrasound power of 370 W, time duration of 20 minutes, and a temperature of 25 oC. The final Ni-MOF nanostructures were immobilized in PVA fibrous polymeric network using under optimal conditions (concentration: 8 ­wt %; the nozzle tip with flow rates of 0.10 mL/h; temperature: 25­ oC and humidity: 22 %; voltages: 20 kV; spinning distance: 12 cm) of electrospinning. To characterize the final composition, various analyses were used. The presence of functional groups in structures was confirmed by FTIR. The Ni-MOF sample was uniformly synthesized on the surface of PVA, as evidenced by SEM and Mapping elemental analysis. The BJH technique validated the effect of the substrate's role in increasing the surface area of the final products. The final products of the Ni-MOF/PVA fibrous network were used as a novel adsorbent in the adsorption of CH4 gas.