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罗丹明B(RB)和吖啶黄(AY)在十二烷基硫酸钠(SDS)水溶液中浓度小于临界胶团浓度时,就能发生有效的能量转移,能够反映出SDS形成预胶团的聚集状况。非离子表面活性剂Tween 60,使两种染料分子之间的能量转移受到抑制,分析表明,加入Tween 60后聚集体变小,由于Tween 60的极性头基较大,所以其预胶团结构较紧密,不利于能量转移的发生。在溶液中加入无机盐NaCl和Na2SO4后,虽然聚集体变小,但体系中染料分子仍可以发生有效的能量转移,表明体系中预胶团内部结构较疏松,而且盐的浓度越高,能量转移效率越低,加入无机盐种类不同,能量转移效率也不同,说明无机盐的种类对聚集体的形态有一定影响。
Rhodamine B (RB) and acridine yellow (AY) in the sodium dodecyl sulfate (SDS) aqueous solution concentration is less than the critical micelle concentration, the effective energy transfer can occur, can reflect the formation of pre-micelle SDS Aggregation status. The Tween 60, a nonionic surfactant, inhibits the energy transfer between the two dye molecules. The analysis shows that the aggregates become smaller after the addition of Tween 60, and the Tween 60 has a larger head base. Therefore, Closer, not conducive to the occurrence of energy transfer. After adding inorganic salts NaCl and Na2SO4 into the solution, although the aggregates become smaller, the dye molecules can still be effectively transferred in the system, indicating that the internal structure of the pre-micelles is loose and the salt concentration is higher. The energy transfer The lower the efficiency, the different types of inorganic salts added, the energy transfer efficiency is also different, indicating that the types of inorganic salts have an impact on the morphology of aggregates.