화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO))
권호 44권 1호
발표분야 고분자합성
제목 Fabrication of TiO2/SnO2 Double Layer Coated Polystyrene Microspheres by Using Surface Charge Interaction
초록 Hierarchical microspheres fabricated from a polymeric sphere, PS core and TiO2/SnO2 doubled shell have been successfully synthesized by surface charge interaction with catalysis in sol-gel processing and additional hydrothermal method. With adding ammonia as catalyst, a prepared negatively charged polystyrene microsphere could be changed to positive surface charge. At the same time, it was acted as hydrolyzing partially negative charged Titania precursors on positively changed surface of PS. In the next steps, the prepared PS@TiO2 core/shell microbeads were attached again with tin dioxide precursor via electrostatic interaction with diethylenetriamine(DETA) in order to make a double shell(TiO2/SnO2). The final products were characterized by XRD, SEM, TEM measurements and we can provide to applicate in various field such as chemical cells, photocatalyst, sensors and so on.
저자 김현지, 박현우, 이현정
소속 국민대
키워드 Polystyrene; Titanium dioxide; Tin dioixde; core/double shell microshpere
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