Carbon dioxide 4 Carbon dioxide adsorption Gas adsorption 4 Fourier transform infrared spectroscopy 2 Porosity 2 Silica 2 Silica gel 2 Synthesis and characterizations 2 Activated carbon 1 Adsorption 1 Adsorption kinetics and isotherm 1 Adsorption process 1 Adsorption technology 1 Aerogels 1 Ambient pressure drying 1 Amines 1 Aminopropyltrimethoxysilane 1 Amorphous silicon 1 Aromatic compounds 1 Bio chars 1 Biochar 1 Brunauer emmett tellers 1 CO2 adsorption 1 CO2 concentration 1 Carbon dioxide process 1 Carbonization 1 Carbonization process 1 Characterization 1 Cost effectiveness 1 Disasters 1