Dye–surfactant interaction in aqueous solutions

Dye aggregation and influence of pre-micelles on heterogeneous catalysis: A photophysical approach

“…One appropriate alternative is the introduction of an ionic surfactant with opposite charge relative to dye promoting the formation of dye-surfactant mixed micelles in the solution. Such process, extremely dependent on surfactant/dye ratio [3,4], need to be well characterized in order to be find the best surfactant and its concentration.…”

Influence of Mixed Cationic-nonionic Surfactant Systems on the Spectral Properties of C.I. Mordant Blue 29 and Its Complexes with Iron(III)

“…Mordant Blue 29, and hydrophobic interactions. 19,20 The addition of a cationic surfactant to the anionic form of C.I. Mordant Blue 29 causes a change in the shapes of its absorption bands as well as in its sensitivity.…”

Diester-containing Zwitterionic Gemini Surfactants with Different Spacer and Its Impact on Micellization Properties and Viscosity of Aqueous Micellar Solution

“…The maximum absorbance value at increasing surfactant concentrations attributed to increase in the amount of the dye molecules which are taken up in the micelles 41 . As shown in Fig.…”

“…The initial viscosity of the aqueous solution is 2 fold lower than that of the maximum viscosity at carbon number 14 in both the newly synthesized gemini surfactants with varying spacer S 2 or 3. This increase in viscosity indicates the growth of micelles to long, entangled form of micelles 41 . As depicted in Fig.…”