Dioctyl sulfosuccinate sodium salt or Sodium AOT (NaAOT), an ionic surfactants give Na⁺ counterions in solution, which can interact with a negatively charged surface formed during the formation of nanodroplets in NaAOT/water/oil microemulsion system. In this work, effect of cation exchange in NaAOT surfactant from Na to H on the water droplet size and location of dye of Rhodamine B (RhB) at low concentration within water/decane microemulsions at W = [Water]/[Surfactant] = 40 was studied by the dynamic light scattering (DLS) and spectroscopy techniques. The dynamical characterization of nanometer sized micelles by DLS technique indicated that by exchanging cation within NaAOT microemulsion containing dye, the water droplet size increased and the interactions between nanodroplets were less repulsive with the mass fraction of nanodroplets (MFD). It was observed that hydrophilic dye of RhB at low concentration can be localized near tail (Gouy Chapman Layer) of HOT microemulsion in addition to the locating into the water/oil interface (Stern Layer), slightly than NaAOT microemulsion. Furthermore, molecules of RhB at high dye concentration were localized near tail (Gouy Chapman Layer) of NaAOT microemulsion in addition to locating into the water/oil interface (Stern Layer) compared to molecules of dye at low concentration within NaAOT microemulsion.

磺基琥珀酸二辛酯钠盐或AOT钠（NaAOT），一种离子型表面活性剂，可提供Na ⁺溶液中的抗衡离子，可以与在NaAOT /水/油微乳液系统中形成纳米液滴的过程中形成的带负电荷的表面相互作用。在这项工作中，在水/癸烷微乳液中，W = [水] / [表面活性剂] = 40时，NaAOT表面活性剂中的阳离子交换从Na到H对低浓度罗丹明B（RhB）的水滴大小和罗丹明B（RhB）染料位置的影响。通过动态光散射（DLS）和光谱技术进行了研究。通过DLS技术对纳米胶束的动力学表征表明，通过在含有染料的NaAOT微乳液中交换阳离子，水滴的尺寸增加，并且纳米液滴之间的相互作用对纳米液滴的质量分数（MFD）的排斥力较小。观察到，低浓度的RhB亲水染料除了可以定位在水/油界面（斯特恩层）之外，还可以定位在HOT微乳的尾部（Gouy Chapman层）附近，略低于NaAOT微乳。此外，与NaAOT微乳液中低浓度的染料分子相比，高染料浓度的RhB分子除了位于水/油界面（船尾层）之外，还位于NaAOT微乳的尾部（Gouy Chapman层）附近。