Department of Chemistry, Tongji University, Siping Road 1239, Shanghai, 200092, China.
Nanoscale Res Lett. 2010 Feb 19;5(5):797-804. doi: 10.1007/s11671-010-9560-y.
Novel organic-inorganic mesoporous luminescent hybrid material N, N'-bis(salicylidene)-thiocarbohydrazide (BSTC-SBA-15) has been obtained by co-condensation of tetraethyl orthosilicate and the organosilane in the presence of Pluronic P123 surfactant as a template. N,N'-bis(salicylidene)-thiocarbohydrazide (BSTC) grafted to the coupling agent 3-(triethoxysilyl)-propyl isocyanate (TESPIC) was used as the precursor for the preparation of mesoporous materials. In addition, for comparison, SBA-15 doped with organic ligand BSTC was also synthesized, denoted as BSTC/SBA-15. This organic-inorganic hybrid material was well-characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy (HRTEM), and photoluminescence spectra, which reveals that they all have high surface area, uniformity in the mesostructure. The resulting materials (BSTC-SBA-15 and BSTC/SBA-15) exhibit regular uniform microstructures, and no phase separation happened for the organic and the inorganic compounds was covalently linked through Si-O bonds via a self-assemble process. Furthermore, the two materials have different luminescence range: BSTC/SBA-15 presents the strong dominant green luminescence, while BSTC-functionalized material BSTC-SBA-15 shows the dominant blue emission.
新型有机-无机介孔发光杂化材料 N，N'-双（水杨醛）-硫代碳酰肼（BSTC-SBA-15）是通过正硅酸乙酯与有机硅烷在 Pluronic P123 表面活性剂存在下共缩合得到的。N，N'-双（水杨醛）-硫代碳酰肼（BSTC）接枝到偶联剂 3-（三乙氧基硅基）-丙基异氰酸酯（TESPIC）上，用作介孔材料制备的前体。此外，为了进行比较，还合成了掺杂有机配体 BSTC 的 SBA-15，记为 BSTC/SBA-15。该有机-无机杂化材料通过 X 射线衍射、傅里叶变换红外光谱、透射电子显微镜（HRTEM）和光致发光光谱进行了很好的表征，结果表明它们都具有高的比表面积和均匀的介孔结构。所得材料（BSTC-SBA-15 和 BSTC/SBA-15）具有规则均匀的微观结构，且有机化合物和无机化合物之间没有发生相分离，它们通过 Si-O 键通过自组装过程共价连接。此外，这两种材料具有不同的发光范围：BSTC/SBA-15 呈现出强的主导绿光发射，而 BSTC 功能化材料 BSTC-SBA-15 则表现出主导的蓝光发射。
