Mixed Matrix membranes (MMM) based on Carbon-modified Polymers of intrinsic microporosity (PIMs) for Carbon Dioxide (CO2) separation =

Rapid industrialization in the past century has led to a surge in energy demand, predominantly met by fossil fuels. This reliance results in significant CO2 emissions, a primary contributor to the greenhouse effect. To address the escalating climate crisis, many countries are exploring strategies like CO2 capture and storage (CCS). Recognized for its potential in aiding climate change targets, CCS offers solutions for low carbon power, industrial decarbonization, and even facilitates net CO2 removal from the atmosphere. In this research, we developed and assessed Mixed Matrix Membranes (MMM) infused with Carbon-modified Polymers of Intrinsic Microporosity (PIMs) to enhance CO2 separation efficiency. The initial phase focused on synthesizing carboxylated PIMs through PIM hydrolysis and fabricating membranes with varying carbon percentages. This required rigorous testing to determine the best production method. The subsequent phase centered on a comprehensive membrane characterization using techniques like Thermo-gravimetric Analysis with IR gas (TGA-IR), FT-IR Spectroscopy (ATR), Differential Scanning Calorimetry (DSC), and Field Emission Scanning Electron Microscopy (FESEM). Ultimately, we gauged the CO2 absorption capabilities of these materials using a Surface Measurement System equipped with a Dynamic Vapor Sorption (DVS) Instrument. By comparing the permeability, solubility, and diffusivity data across different gases and partial pressures, we highlighted the enhanced separation performance attributed to carbon incorporation.