화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO)
권호 18권 2호, p.2393
발표분야 재료
제목 Synthesis of Mesoporous ZnO Nanoclusters Through Dissolution of Polystyrene@ZnO Core-Shells
초록 Novel mesoporous zinc oxide (ZnO) nanospheres were achieved by dissolution of as-prepared polystyrene@ZnO core-shells nanospheres. In a typical experimental condition, first we prepared 200-300 nm size functionalized polystyrene spheres via polymerization of styrene in aqueous solvent followed by esterification of zinc acetate dihydrate in iso-propyl alcohol under ultrasonication and aged for 24 hours. The structural and morphological investigation of as-grown ZnO mesoporous nanospheres were performed by field emission scanning electron microscope (FESEM) transmission electron microscopy (TEM), x-ray diffraction (XRD) and EDX. The as-synthesized ZnO nanoclusters are composed of spherical shaped, crystalline nanoparticles of 20∼40 nm in diameter. Further, the removal of core-polystyrene were investigated by various approach and discussed in detail. However, the polystyrene beads were successfully removed by immersing the as-prepared polystyrene@ZnO in toluene solution.
저자 Nirmalya Tripathy, Rafiq Ahmad, Mohammad Vaseem, 한윤봉
소속 전북대
키워드 Polystyrene; ZnO; Esterification; Mesoporous
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