Fig. 7

Potentiometric titration curves of the synthesized g-C3N4 and acid functionalized g-C3N4-CO-(CH2)3-CO2H and g-C3N4-(CH2)3-SO3H.

Potentiometric titration curves of the synthesized g-C3N4 and acid functionalized g-C3N4-CO-(CH2)3-CO2H and g-C3N4-(CH2)3-SO3H.