Nanoporous membranes transport phenomenon: Experiments match Simulations

ORAL

Abstract

Nanoporous membranes and 2D materials based Graphene, MoS2 nanoporous membranes transport is well matched with theory and experiments for the first time. We use a dynamical oscillator model derived thoroughly from Poisson-Nernst-Planck-Navier-Stokes model and Langevin dynamics model that match the experiments of I-V characteristics with the theoretical model. The theoretical model was found to match with the experiments for varying concentrations of ionic electrolyte, pH, solvent gels, pore diameter and pore thickness. The theory matched the experiments results of linear I-V characteristics and nonlinear I-V characteristics observed both in thick and ultrathin 2D nanoporous membranes when the ionic electrolyte concentration, pH is varied for the same designed pore diameters. The ion-ion interactions, ion-wall interactions, ion-water interactions, electric field induced nanoporous entrance/exit polarization on ionic electrolyte results in the desired I-V characteristics when the electric field is driven from the bulk reservoir of dimensions greater than few centimeters. Nanoporous membranes experiments match with theoretical model show many applications in water desalination, DNA sequencing, bio-applications, ionic separation and power generator renewable energy applications.

Publication: https://professionalme.today, https://scholar.google.com/citations?hl=en&user=duGIdGEAAAAJ&view_op=list_works&sortby=pubdate

Presenters

  • Vishal Nandigana

    Department of Mechanical Engineering, Indian Institute of Technology Madras

Authors

  • Shriram Elangovan

    Department of Chemical Engineering, IIT Madras

  • Vishal Nandigana

    Department of Mechanical Engineering, Indian Institute of Technology Madras