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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-331 |
| Subject |
High Photocatalytic Activity of ZnO nanorod and Fe3O4 Nanoparticles
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| Authors |
Sang-Yoon Lee, Jin-Seung Jung*
Department of Chemistry, Gangneung-Wonju National University, Korea
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| Abstract |
Recently, with growing demand for clean and comfortable environment, purification technologies with high efficiency and low cost to reduce the pollutant of wastewater are urgently needed. Although TiO2 is largely studied as photocatalyst, there are reports that ZnO is a better photocatalyst than TiO2. Thus for the remediation of hazardous wastes under stimulated light condition, many efforts have been taken recently using ZnO catalyst for the photodegradation of toxic dye pollutants. In this study, a facile and efficient approach for the fabrication of Fe3O4@ZnO nanoparticles with a good core–shell structure has been successfully synthesized by multistep chemical methods with heated in microwave oven. The magnetic cores of Fe3O4 act as the center for the growth of ZnO nanorods. As a result, the zinc oxide nanorods grown around Fe3O4 magnetic cores form a rod-like hybrid structure. The photodynamic process of ZnO rapidly generates reactive oxygen species (ROS) as for instance superoxide anion radical (•O2−), hydrogen peroxide (H2O2), singlet oxygen (1O2), and hydroxyl radical (•OH). Thus, detection methods and generation mechanisms of the intrinsic reactive oxygen species (ROS), in photocatalysis, were surveyed comprehensively. As characterized by FE-SEM, TEM, XRD, EDS FT-IR the as-synthesized Fe3O4@ZnO nanoparticles exhibit a narrow size distribution. The Fe3O4@ZnO photocatalyst exhibited high photocatalytic activity in the degradation of Rhodamine B (Rh.B) and methylene blue (MB) under Solar light. |
| E-mail |
nanochemistry@naver.com |
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121st General Meeting of the KCS