CAJ | 학술논문

以自制纳米二氧化硅微粒为模板，硫代乙酰胺和醋酸锌分别为硫源和锌源，通过沉淀法成功制备了SiO2／ZnS核壳结构微球，研究了各种反应条件对该微球形貌的影响。经NaOH溶液蚀刻后，SiO2／ZnS核壳结构微球转变成亚微米级的ZnS空心微球。通过XRD、SEM和TEM等手段对SiO2／ZnS核壳结构微球和ZnS空心微球进行了表征。结果表明，在优化条件下制得的微球形貌规整、大小均匀，其壳层由厚度约20nm的ZnS纳米颗粒组成。
이자제납미이양화규미립위모판，류대을선알화작산자분별위류원화자원，통과침정법성공제비료SiO2／ZnS핵각결구미구，연구료각충반응조건대해미구형모적영향。경NaOH용액식각후，SiO2／ZnS핵각결구미구전변성아미미급적ZnS공심미구。통과XRD、SEM화TEM등수단대SiO2／ZnS핵각결구미구화ZnS공심미구진행료표정。결과표명，재우화조건하제득적미구형모규정、대소균균，기각층유후도약20nm적ZnS납미과립조성。
By using self-made silica particles as the template, thioacetamide and zinc acetate as sulfur origin and zinc origin respectively, SiO2/ZnS core-shell structure microspheres can be successfully prepared by adopting precipitation method, and the effects of reaction conditions on microspheres' morphology have been studied. After etching by NaOH solution, SiO2/ ZnS core-shell structure microspheres transform to submicron ZnS hollow spheres. They are characterized by XRD, SEM and TEM. The re-suits show that, microspheres prepared under the optknized conditions have regular morphology and uniform size, and the shell layer composed of ZnS nanoparticles which thickness of 20nm.