Synthesis and Optical Properties of ZnO Nanoparticles in Submicron PS Hollow Reactors

ZnO nanoparticles were first encapsulated in submicron PS hollow microspheres through two-step swelling process of core-shell structured PMMA/PS （PMMA： polymethyl methao- rylate） microspheres in acid-alkali solution, and the ZnO precursors, i.e. the ethanol solu- tions of （CHaCOO）2Zn and LiOH. The t...

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Bibliographic Details
Published in:Chinese journal of chemical physics 2012-12, Vol.25 (6), p.719-724
Main Authors: Huang, Xue-feng, Ju, Fei-fei, Wang, Mo-zhen, Ge, Xue-wu
Format: Article
Language:English
Subjects:
PS
ZnO纳米粒子
亚微米
光学性质
制备
空心微球
空心电抗器
聚甲基丙烯酸甲酯
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Summary:ZnO nanoparticles were first encapsulated in submicron PS hollow microspheres through two-step swelling process of core-shell structured PMMA/PS （PMMA： polymethyl methao- rylate） microspheres in acid-alkali solution, and the ZnO precursors, i.e. the ethanol solu- tions of （CHaCOO）2Zn and LiOH. The transmission electron microscope, X-ray diffraction, and thermogravimetric analysis results show that the feeding order of ethanol solutions of （CH3COO）2Zn and LiOH in the second swelling step has great influence on the loading efficiency and the size of ZnO nanoparticles, but little on their crystal form. The photolumi- nescence and UV-Vis absorption behavior of ZnO/PS microspheres show that the PS shell can effectively avoid the fluorescence quenching effect.
ISSN:1674-0068
2327-2244
DOI:10.1088/1674-0068/25/06/719-724