【摘要】 调节纳米颗粒相邻间距和排列方式，可以得到宏观有序纳米结构，其具有新的光、电性质，可作为研究亲脂性分子的表面增强拉曼光谱(SERS)基底。首先制备了直径为16 nm的金纳米粒子，通过界面自组装方法制得金纳米粒子膜，并利用扫描电镜、紫外-可见吸收光谱仪等对其进行了表征，结果表明其有两种膜结构，一种是均匀分布的单层膜，另一种是多层膜结构，它们的吸收峰在590 nm处。将其作为SERS基底，研究了相同条件下苏丹红Ⅰ分子在不同膜结构的谱学变化，发现单层和多层膜上苏丹红Ⅰ的SERS信号有明显差异。最后，初步探究了苏丹红Ⅰ分子随浸泡时间的吸附动力学。更多还原

【Abstract】 By adjusting the distances and patterns between nanoparticles, macroscopically ordered nanostructures can exhibit new optical and electric properties, regarding as SERS substrates of studying lipophilic molecules. This paper firstly prepared gold nanoparticles, which size of the diameter is 16 nm. Then the gold nanoparticle film can be obtained through the interfacial self-assembly method. Meanwhile, the characterization of SEM and UV-Vis absorption spectroscopy showed that the film has monolayer and multilayer structures with the absorption peak at 590 nm. Furthermore, the SERS signals of Sudan Ⅰ on monolayer structure were different from multilayer structure. Finally, the adsorption kinetics of Sudan Ⅰ against time were studied.更多还原