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以水热方法制备具有多级纳米结构的In2S3空心微球.通过对不同反应时间产物的跟踪表征,证明微球中空结构的形成归因于Ostwald ripening机理.空心微球的壳层由In2S3的纳米粒子或纳米片组成,In2S3空心球的紫外可见光谱蓝移以及荧光光谱在约385 nm的强发射和364 nm的弱发射,均显示了纳米尺度In2S3晶体的量子局限效应.以不同的氨基酸作为晶体生长修饰剂,可以选择性地制备不同表面形貌的In2S3空心微球,显示了氨基酸的不同功能团在In2S3晶体生长过程中对表面形貌的控制作用.
The In2S3 hollow microspheres with multi-stage nanostructures were prepared by hydrothermal method.The tracing characterization of different reaction time products proved that the microstructure of hollow microspheres was attributed to the Ostwald ripening mechanism.The hollow microspheres shell consists of In2S3 nanostructures Particles or nanosheets, the blue shift of UV-visible spectra of In2S3 hollow spheres and the strong emission at about 385 nm and the weak emission at 364 nm of the In2S3 hollow spheres all showed the quantum confinement effect of the nanoscale In2S3 crystals. Different amino acids were used as the crystal Growth modifier, In2S3 hollow microspheres with different surface morphologies can be selectively prepared. It shows that the different functional groups of amino acids control the surface morphology during the growth of In2S3 crystal.