多壳层 ZnSe 核壳球及其改进的光催化活性。
Multiple-shell ZnSe core-shell spheres and their improved photocatalytic activity.
机构信息
Materials Genome Institute, Shanghai University, Shanghai 200444, PR China; Department of Physics, Donghua University, Shanghai 201620, PR China.
Materials Genome Institute, Shanghai University, Shanghai 200444, PR China.
出版信息
J Colloid Interface Sci. 2017 Sep 15;502:1-7. doi: 10.1016/j.jcis.2017.04.056. Epub 2017 Apr 21.
Multiple-shell ZnSe core-shell microspheres were synthesized on a large scale by a facile solvothermal method in ethylene glycol (EG) with ethylene diamine tetraacetic acid (EDTA) assisted. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis absorption spectroscopy and photoluminescence (PL) were used to characterize the structures and optical properties of these core-shell spheres with multiple shells. XRD and SEM analyses show that the as-grown ZnSe samples are zinc-blende core-shell structures with multiple shells. The possible growth mechanism is investigated. The results of photocatalysis of methyl red (MR) indicate that the multiple-shell ZnSe core-shell microspheres possess remarkable photocatalytic activity.
多壳层 ZnSe 核壳微球通过在乙二醇（EG）中使用乙二胺四乙酸（EDTA）辅助的简便溶剂热方法大规模合成。X 射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、紫外-可见吸收光谱和光致发光（PL）用于表征这些具有多壳层的核壳球体的结构和光学性质。XRD 和 SEM 分析表明，所生长的 ZnSe 样品是具有多壳层的闪锌矿核壳结构。研究了可能的生长机制。对亚甲基蓝（MR）的光催化结果表明，多壳层 ZnSe 核壳微球具有显著的光催化活性。
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