CO2 1 Cd(II) 1 N–doped carbon Orange G 1 adsorption 1 adsorption studies 1 amino group 1 bio-phenol resin 1 biochar 1 bonding type 1 carbo microsphere 1 carbon capture and storage process (CCS) 1 carbon dioxide 1 carbon dioxide adsorption 1 carbon gels 1 carbon materials 1 carbon nanotubes 1 catalysis 1 chemical functionalization 1 co-activation method 1 cross-link bond type 1 doping 1 electrocatalysis 1 electrochemical analysis 1 electrode material 1 energy power density 1 energy storage 1 environmental remediation 1 functionalized graphene oxide 1 graphene 1