Esha Asad
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Esha Asad has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Amna Safdar
School of Chemical and Materials Engineering, National University of Science and Technology, Islamabad 44000, Pakistan
1 shared publication - Ayesha Raza
School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
1 shared publication - Humais Roafi
School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad 44000, Pakistan
1 shared publication - Muhammad Nouman Aslam Khan
Polymer Research Lab, School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology, Sector H-12, Islamabad 44000, Pakistan
1 shared publication
Latest Publications
- Open Access
Advanced Cellulose Triacetate-Based Mixed Matrix Membranes Enhanced by Bimetallic Ni-Cu-BTC MOFs for CO2/CH4 Separation
Cu-BTC (HKUST-1) metal–organic framework (MOF) is widely recognized for its carbon capture capability due to its unsaturated copper sites, high surface area, and well-defined porous structure. This study developed mixed matrix membranes (MMMs) using cellulose triacetate (CTA), incorporating bimetallic Ni-Cu-BTC MOFs for CO2/CH4 separation, and benchmarked them against membranes fabricated with monometallic Cu-BTC. CTA was selected for its biodegradability, membrane-forming properties, and cost-effectiveness. The optimized membrane with 10 wt.% Ni-Cu-BTC achieved a CO2 permeability of 22.9 Barrer at 25 °C and 5 bar—more than twice that of pristine CTA—with a CO2/CH4 selectivity of 33.8. This improvement stems from a 51.66% increase in fractional free volume, a 49.30% rise in the solubility coefficient, and a 51.94% boost in the diffusivity coefficient. Dual-sorption model analysis further confirmed enhanced solubility and adsorption mechanisms. These findings establish CTA/Ni-Cu-BTC membranes as promising candidates for high-performance CO2 separation in natural gas purification and related industrial processes.
Open AccessAdvanced Cellulose Triacetate-Based Mixed Matrix Membranes Enhanced by Bimetallic Ni-Cu-BTC MOFs for CO2/CH4 Separation
Cu-BTC (HKUST-1) metal–organic framework (MOF) is widely recognized for its carbon capture capability due to its unsaturated copper sites, high surface area, and well-defined porous structure. This study developed mixed matrix membranes (MMMs) using cellulose triacetate (CTA), incorporating bimetallic Ni-Cu-BTC MOFs for CO2/CH4 separation, and benchmarked them against membranes fabricated with monometallic Cu-BTC. CTA was selected for its biodegradability, membrane-forming properties, and cost-effectiveness. The optimized membrane with 10 wt.% Ni-Cu-BTC achieved a CO2 permeability of 22.9 Barrer at 25 °C and 5 bar—more than twice that of pristine CTA—with a CO2/CH4 selectivity of 33.8. This improvement stems from a 51.66% increase in fractional free volume, a 49.30% rise in the solubility coefficient, and a 51.94% boost in the diffusivity coefficient. Dual-sorption model analysis further confirmed enhanced solubility and adsorption mechanisms. These findings establish CTA/Ni-Cu-BTC membranes as promising candidates for high-performance CO2 separation in natural gas purification and related industrial processes.