[20p-PA2-1~14] 12.2 Characterization and Materials Physics

[20p-PA2-13] Evaluation of binding form between cationic surfactant and hydrophilic carbon materials by potentiometric titration

〇Riona Hayashi¹, Kota Sonoda¹, Noboru Takisawa², Koichi Sakaguchi¹ (1.Saga Univ., 2.OUJ)

Keywords:Hydrophilic carbon material, Potentiometric titration

We considered to estimate the amount of oxygen functional groups in the graphene oxide by using binding amount of cationic surfactant. As a result, it is found that the binding form was changed as depending on pH condition. On the other hand, this changing in the graphite oxide with mild oxidation was not revealed. This is caused that graphene oxide has different binding forms with hydrophilic interaction and hydrophobic interaction, simultaneously.