Fossil fuels are dominant as an energy source. typically producing carbon dioxide (CO2) and enhancing global climate change. The present work reports the application of low-cost tri-sodium phosphate (TSP) to capture CO2 from model flue gas (CO2 + N2) mixture. in a batch mode and fixed-bed setup. https://parisnaturalfoodes.shop/product-category/alkaline-pitcher-filter-3pack/