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首页> 外文会议>Asia-Pacific Congress on Catalysis >Preparation of CdS-SiO_2 Core-shell Nanoparticles and Hollow SiO_2 Sphere in Reverse Microemulsions
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Preparation of CdS-SiO_2 Core-shell Nanoparticles and Hollow SiO_2 Sphere in Reverse Microemulsions

机译：逆转微乳液中Cds-SiO_2核 - 壳纳米粒子和中空SiO_2球的制备

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Sicilica-coated luminescent semiconductor nanocrystals (e.g., cadmium sulfide) used as excellent photocatalysts and optoelectronic devices have received great attention recently The shell of silica can enhance photochemical stability of the nanocrystals and increase quantum yields of nanocrystals. The core-shell nanocomposites can be extended to use as biocompatible labels because of biocompatibility of the silica shell Hollow silica sphere can be used as good support of catalyst because of its high surface area. In this report, monodispersed cadmium sulfide-silica core-shell composites and hollow silica spheres have been synthesized by reverse microemulsion technology. The size of CdS/SiO_2 composites and the thickness of hollow silica sphere can be easily controlled by altering the addition amount of reactants. The products were characterized by TEM, XRD, N_2 adsorption/desorption, XRF, etc.
机译：使用作为优异的光催化剂和光电器件的Sicilica涂覆的发光半导体纳米晶（例如，硫化镉）最近，硅胶壳可以增强纳米晶体的光化学稳定性并增加纳米晶体的量子产率。核 - 壳纳米复合材料可以扩展以用作生物相容性标记，因为二氧化硅壳中空二氧化硅球体的生物相容性可用作催化剂的良好载体，因为其高表面积。在本报告中，通过反向微乳液技术合成了单分散的硫化镉 - 二氧化硅核 - 壳复合材料和中空二氧化硅球。通过改变反应物的添加量，可以容易地控制Cds / SiO_2复合材料的尺寸和中空二氧化硅球的厚度。该产品的特点是TEM，XRD，N_2吸附/解吸，XRF等。

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