Kabilaphat Jirabhorn, Poosimma Poonsuk, Khaorapapong Nithima, Intachai Sonchai, Ogawa Makoto
J Nanosci Nanotechnol. 2017 Feb;17(2):1420-427. doi: 10.1166/jnn.2017.12804.
The incorporation of metal sulfide mixture, manganese sulfide and zinc sulfide (MnS–ZnS) or manganese sulfide and cadmium sulfide (MnS–CdS), in two types of montmorillonites (sodium montmorillonite and cetyltrimethylammonium modified montmorillonite) was investigated. The hybrids were characterized by powder X-ray diffraction, thermogravimetric-differential thermal analysis, transmission electron microscopy (TEM), and Raman, UV-visible and photoluminescence spectroscopies. The experimental evidences such as the expansion of the interlayer spaces and the presence of the absorption and photoluminescence due to MnS, ZnS and/or CdS revealed that the mixed metal sulfides formed in the interlayer space of montmorillonites. TEM images of the hybrids showed diskor plate-shaped nanoparticles with a mean diameter of ca. 2 nm. The increase of the luminescence intensities of the hybrids was assumed to be caused by quantum confinement effect in the interlayer space of montmorillonite.
研究了在两种蒙脱石（钠蒙脱石和十六烷基三甲基铵改性蒙脱石）中掺入金属硫化物混合物，即硫化锰和硫化锌（MnS–ZnS）或硫化锰和硫化镉（MnS–CdS）。通过粉末X射线衍射、热重-差热分析、透射电子显微镜（TEM）以及拉曼光谱、紫外-可见光谱和光致发光光谱对这些杂化物进行了表征。诸如层间空间膨胀以及由于MnS、ZnS和/或CdS而出现吸收和光致发光等实验证据表明，在蒙脱石的层间空间中形成了混合金属硫化物。杂化物的TEM图像显示出平均直径约为2 nm的盘状或板状纳米颗粒。杂化物发光强度的增加被认为是由蒙脱石层间空间中的量子限域效应引起的。
