Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping

► Effect of non-solvent additives on CO2 stripping performance. ► Addition of additive reduced the membrane hydrophobicity and gas permeability. ► Liquid entry pressure increased due to more formation of sponge-like structure. ► PVDF/PEG-400 membrane produced the highest stripping flux performance.► Addition of non-solvent additive increased the overall mass transfer coefficient.