In this paper, the structural and spectroscopic properties of rhodamine 3B (R3B) cations incorporated into titanate nanosheet (TNS)/decyltrimethylammonium (C10TMA) cation hybrid was investigated in the presence and absence of adsorbed water. Powder X-ray diffraction measurement under various relative humidity indicated that the TNS/C10TMA/R3B hybrid had at least two water-adsorption sites with different affinity for water in the 2D nanospace of TNS stacked structure. Intensity reduction and blue shift in diffuse reflectance and photoluminescence spectra of the TNS/C10TMA/R3B hybrid powder was observed by water adsorption. This spectroscopic behavior could be explained as lowering of electrostatic interaction between the cation group of R3B and cation exchange sites on the TNS surface.
本文研究了在存在和不存在吸附
水的情况下,掺入
钛酸纳米片(TNS)/
癸基三甲基铵(C10TMA)阳离子杂化物的
罗丹明3B(R3B)阳离子的结构和光谱特性。在各种相对湿度下进行的粉末X射线衍射测量表明,在TNS堆叠结构的二维纳米空间中,TNS/C10TMA/R3B杂化物至少有两个对
水具有不同亲和力的
水吸附位点。通过
水吸附,观察到TNS/C10TMA/R3B杂化粉末的漫反射和光致发光光谱的强度降低和蓝移。这种光谱行为可以解释为R3B阳离子基团与TNS表面上的阳离子交换位点之间的静电相互作用降低。