Laboratory study demonstrates that surfactant synergy drives spontaneous surface adsorption of aqueous graphene oxide sheets, suggesting new formulation strategies for surface-active 2D composites.
1 mM) in order to impart spontaneous adsorption of the sheets. Anionic surfactants do not enhance GO surface activity presumably due to like-charge repulsions that prevent co-assembly. This work provides useful insight into the synergy between GO sheets and molecular amphiphiles in aqueous systems for enhancing the surface activity of GO, and can be used to inform system formulation for developing water-friendly, surface active composites based around atomically thin materials.
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McCoy et al. (2021) studied this question.
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