• Barun Kumar Mondal

Compared with traditional separation methods, membrane-based technology shows advantages in energy efficiency for natural gas purification. To overcome the performance trade-off of conventional polymeric membranes, a new array of mixed-matrix membranes (MMMs) was engineered, integrating two dimensional nanosheets of 2D boron nitride nanosheets (BNNS), into polymers of semi-fluorinated aromatic polyamide (PA) to selectively separate CO2 from CH4. The inclusion of 2D boron nitride nanosheets (BNNS), significantly increases the affinity between CO2 molecules and the fabricated MMMs. The selectivity and permeability of these molecules can be controlled by drilling various free volume with different sizes and functionalized factors in the edge of free volume. The CF3 substituting PA membrane exhibited the highest gas permeability which could be attributed to the loose chain packing via the incorporation of the bulky CF3 substituting group in polymer matrix. The PA matrix was filled with BNNS nanosheets at two different weight percentages: 2% and 4%. The 4 wt% MMM showed a CO2 permeability and a selectivity of 36 for CO2/CH4, showing enhanced separation performance because of the submicron fillers. The homogeneous integration of BNNS nanosheets into the PA matrix was verified by SEM imaging. The present study is valuable for designing novel nanostructure membranes for gas separation.

Poly(amide), Gas permeability, 2D boron nitride nanosheets, Mixed-matrix membranes.

"2D Mixed-Matrix Membranes Based on Boron Nitride Nanosheets and Polyamide (PA) for Effective Gas Separation", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 12, page no.229-235, December-2020, Available :http://www.jetir.org/papers/JETIR2012434.pdf

"2D Mixed-Matrix Membranes Based on Boron Nitride Nanosheets and Polyamide (PA) for Effective Gas Separation", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 12, page no. pp229-235, December-2020, Available at : http://www.jetir.org/papers/JETIR2012434.pdf